Slide
Centre Interdisciplinaire
de Recherche et d’Innovation
en Cybersécurité et Société
de Recherche et d’Innovation
en Cybersécurité et Société
1.
Cote, S. S. -P.; Paquette, G. R.; Neveu, S. -M.; Chartier, S.; Labbe, D. R.; Renaud, P.
Combining electroencephalography with plethysmography for classification of deviant sexual preferences. Proceedings Article
In: Proceedings - 9th International Workshop on Biometrics and Forensics, IWBF 2021, Institute of Electrical and Electronics Engineers Inc., 2021, ISBN: 978-172819556-8 (ISBN), (Journal Abbreviation: Proc. - Int. Workshop Biom. Forensics, IWBF).
Abstract | Links | BibTeX | Tags: Biometrics, Classification, Classification (of information), Decision trees, Deviant sexual preferences, Dimensionality reduction, Electroencephalography, Electrophysiology, extraction, Extraction method, Machine learning, Plethysmography, Proof of concept, Psychophysiological measures, Standard protocols, Variable selection and extraction
@inproceedings{cote_combining_2021,
title = {Combining electroencephalography with plethysmography for classification of deviant sexual preferences.},
author = {S. S. -P. Cote and G. R. Paquette and S. -M. Neveu and S. Chartier and D. R. Labbe and P. Renaud},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85113855965&doi=10.1109%2fIWBF50991.2021.9465078&partnerID=40&md5=b545b2a6d22e32115ac179399188960e},
doi = {10.1109/IWBF50991.2021.9465078},
isbn = {978-172819556-8 (ISBN)},
year = {2021},
date = {2021-01-01},
booktitle = {Proceedings - 9th International Workshop on Biometrics and Forensics, IWBF 2021},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
abstract = {Evaluating sexual preferences is a difficult task. Past researchrelied mostly on penile plethysmography (PPG). Even though this technique is the standard protocol used in most currentforensic settings, its usage showed mixed results. One way to improve PPG is the addition of other psychophysiological measures such as electroencephalography (EEG). However, EEG generates significant amount of data that hinders classification. Machine learning (ML) is nowadays an excellent tool to identify most discriminating variables and for classification. Therefore, it is proposed to use ML selection and extraction methods for dimensionality reduction and then to classify sexual preferences. Evidence from this proof of concept shows that using EEG and PPG together leads to better classification (85.6%) than using EEG (82.2%) or PPG individually (74.4%). The Random Forest (RF) classifier combined with the Principal Component Analysis (PCA) extraction method achieves a slightly higher general performance rate. This increase in performances opens the door for using more reliable biometric measures in the assessment of deviant sexual preferences. © 2021 IEEE.},
note = {Journal Abbreviation: Proc. - Int. Workshop Biom. Forensics, IWBF},
keywords = {Biometrics, Classification, Classification (of information), Decision trees, Deviant sexual preferences, Dimensionality reduction, Electroencephalography, Electrophysiology, extraction, Extraction method, Machine learning, Plethysmography, Proof of concept, Psychophysiological measures, Standard protocols, Variable selection and extraction},
pubstate = {published},
tppubtype = {inproceedings}
}
Evaluating sexual preferences is a difficult task. Past researchrelied mostly on penile plethysmography (PPG). Even though this technique is the standard protocol used in most currentforensic settings, its usage showed mixed results. One way to improve PPG is the addition of other psychophysiological measures such as electroencephalography (EEG). However, EEG generates significant amount of data that hinders classification. Machine learning (ML) is nowadays an excellent tool to identify most discriminating variables and for classification. Therefore, it is proposed to use ML selection and extraction methods for dimensionality reduction and then to classify sexual preferences. Evidence from this proof of concept shows that using EEG and PPG together leads to better classification (85.6%) than using EEG (82.2%) or PPG individually (74.4%). The Random Forest (RF) classifier combined with the Principal Component Analysis (PCA) extraction method achieves a slightly higher general performance rate. This increase in performances opens the door for using more reliable biometric measures in the assessment of deviant sexual preferences. © 2021 IEEE.
2.
Cote, S. S. -P.; Paquette, G. R.; Neveu, S. -M.; Chartier, S.; Labbe, D. R.; Renaud, P.
Combining electroencephalography with plethysmography for classification of deviant sexual preferences. Proceedings Article
In: Proceedings - 9th International Workshop on Biometrics and Forensics, IWBF 2021, Institute of Electrical and Electronics Engineers Inc., 2021, ISBN: 978-172819556-8 (ISBN), (Journal Abbreviation: Proc. - Int. Workshop Biom. Forensics, IWBF).
Abstract | Links | BibTeX | Tags: Biometrics, Classification, Classification (of information), Decision trees, Deviant sexual preferences, Dimensionality reduction, Electroencephalography, Electrophysiology, extraction, Extraction method, Machine learning, Plethysmography, Proof of concept, Psychophysiological measures, Standard protocols, Variable selection and extraction
@inproceedings{coteCombiningElectroencephalographyPlethysmography2021,
title = {Combining electroencephalography with plethysmography for classification of deviant sexual preferences.},
author = {S. S. -P. Cote and G. R. Paquette and S. -M. Neveu and S. Chartier and D. R. Labbe and P. Renaud},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85113855965&doi=10.1109%2fIWBF50991.2021.9465078&partnerID=40&md5=b545b2a6d22e32115ac179399188960e},
doi = {10.1109/IWBF50991.2021.9465078},
isbn = {978-172819556-8 (ISBN)},
year = {2021},
date = {2021-01-01},
booktitle = {Proceedings - 9th International Workshop on Biometrics and Forensics, IWBF 2021},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
abstract = {Evaluating sexual preferences is a difficult task. Past researchrelied mostly on penile plethysmography (PPG). Even though this technique is the standard protocol used in most currentforensic settings, its usage showed mixed results. One way to improve PPG is the addition of other psychophysiological measures such as electroencephalography (EEG). However, EEG generates significant amount of data that hinders classification. Machine learning (ML) is nowadays an excellent tool to identify most discriminating variables and for classification. Therefore, it is proposed to use ML selection and extraction methods for dimensionality reduction and then to classify sexual preferences. Evidence from this proof of concept shows that using EEG and PPG together leads to better classification (85.6%) than using EEG (82.2%) or PPG individually (74.4%). The Random Forest (RF) classifier combined with the Principal Component Analysis (PCA) extraction method achieves a slightly higher general performance rate. This increase in performances opens the door for using more reliable biometric measures in the assessment of deviant sexual preferences. © 2021 IEEE.},
note = {Journal Abbreviation: Proc. - Int. Workshop Biom. Forensics, IWBF},
keywords = {Biometrics, Classification, Classification (of information), Decision trees, Deviant sexual preferences, Dimensionality reduction, Electroencephalography, Electrophysiology, extraction, Extraction method, Machine learning, Plethysmography, Proof of concept, Psychophysiological measures, Standard protocols, Variable selection and extraction},
pubstate = {published},
tppubtype = {inproceedings}
}
Evaluating sexual preferences is a difficult task. Past researchrelied mostly on penile plethysmography (PPG). Even though this technique is the standard protocol used in most currentforensic settings, its usage showed mixed results. One way to improve PPG is the addition of other psychophysiological measures such as electroencephalography (EEG). However, EEG generates significant amount of data that hinders classification. Machine learning (ML) is nowadays an excellent tool to identify most discriminating variables and for classification. Therefore, it is proposed to use ML selection and extraction methods for dimensionality reduction and then to classify sexual preferences. Evidence from this proof of concept shows that using EEG and PPG together leads to better classification (85.6%) than using EEG (82.2%) or PPG individually (74.4%). The Random Forest (RF) classifier combined with the Principal Component Analysis (PCA) extraction method achieves a slightly higher general performance rate. This increase in performances opens the door for using more reliable biometric measures in the assessment of deviant sexual preferences. © 2021 IEEE.
3.
Marschall-Lévesque, S.; Rouleau, J. -L.; Renaud, P.
In: Archives of Sexual Behavior, vol. 47, no. 2, pp. 417–428, 2018, ISSN: 00040002, (Publisher: Springer New York LLC).
Abstract | Links | BibTeX | Tags: Acoustic Stimulation, Adolescent, adult, auditory stimulation, Child, clinical article, controlled study, crime victim, Crime Victims, Diagnosis, DSM-5, Feedback, female, human, Humans, male, Pedophilia, Penis, Photic Stimulation, photostimulation, physiology, Plethysmography, procedures, psychology, receiver operating characteristic, Sensory, sensory feedback, sex determination, Sex Offenses, sexual crime, stimulus, victim, Young Adult
@article{marschall-levesque_increasing_2018,
title = {Increasing Valid Profiles in Phallometric Assessment of Sex Offenders with Child Victims: Combining the Strengths of Audio Stimuli and Synthetic Characters},
author = {S. Marschall-Lévesque and J. -L. Rouleau and P. Renaud},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85033397289&doi=10.1007%2fs10508-017-1053-y&partnerID=40&md5=bbb82341dfebd50938aa29358f8e0e69},
doi = {10.1007/s10508-017-1053-y},
issn = {00040002},
year = {2018},
date = {2018-01-01},
journal = {Archives of Sexual Behavior},
volume = {47},
number = {2},
pages = {417–428},
publisher = {Springer New York LLC},
abstract = {Penile plethysmography (PPG) is a measure of sexual interests that relies heavily on the stimuli it uses to generate valid results. Ethical considerations surrounding the use of real images in PPG have further limited the content admissible for these stimuli. To palliate this limitation, the current study aimed to combine audio and visual stimuli by incorporating computer-generated characters to create new stimuli capable of accurately classifying sex offenders with child victims, while also increasing the number of valid profiles. Three modalities (audio, visual, and audiovisual) were compared using two groups (15 sex offenders with child victims and 15 non-offenders). Both the new visual and audiovisual stimuli resulted in a 13% increase in the number of valid profiles at 2.5 mm, when compared to the standard audio stimuli. Furthermore, the new audiovisual stimuli generated a 34% increase in penile responses. All three modalities were able to discriminate between the two groups by their responses to the adult and child stimuli. Lastly, sexual interest indices for all three modalities could accurately classify participants in their appropriate groups, as demonstrated by ROC curve analysis (i.e., audio AUC = .81, 95% CI [.60, 1.00]; visual AUC = .84, 95% CI [.66, 1.00], and audiovisual AUC = .83, 95% CI [.63, 1.00]). Results suggest that computer-generated characters allow accurate discrimination of sex offenders with child victims and can be added to already validated stimuli to increase the number of valid profiles. The implications of audiovisual stimuli using computer-generated characters and their possible use in PPG evaluations are also discussed. © 2017, Springer Science+Business Media, LLC.},
note = {Publisher: Springer New York LLC},
keywords = {Acoustic Stimulation, Adolescent, adult, auditory stimulation, Child, clinical article, controlled study, crime victim, Crime Victims, Diagnosis, DSM-5, Feedback, female, human, Humans, male, Pedophilia, Penis, Photic Stimulation, photostimulation, physiology, Plethysmography, procedures, psychology, receiver operating characteristic, Sensory, sensory feedback, sex determination, Sex Offenses, sexual crime, stimulus, victim, Young Adult},
pubstate = {published},
tppubtype = {article}
}
Penile plethysmography (PPG) is a measure of sexual interests that relies heavily on the stimuli it uses to generate valid results. Ethical considerations surrounding the use of real images in PPG have further limited the content admissible for these stimuli. To palliate this limitation, the current study aimed to combine audio and visual stimuli by incorporating computer-generated characters to create new stimuli capable of accurately classifying sex offenders with child victims, while also increasing the number of valid profiles. Three modalities (audio, visual, and audiovisual) were compared using two groups (15 sex offenders with child victims and 15 non-offenders). Both the new visual and audiovisual stimuli resulted in a 13% increase in the number of valid profiles at 2.5 mm, when compared to the standard audio stimuli. Furthermore, the new audiovisual stimuli generated a 34% increase in penile responses. All three modalities were able to discriminate between the two groups by their responses to the adult and child stimuli. Lastly, sexual interest indices for all three modalities could accurately classify participants in their appropriate groups, as demonstrated by ROC curve analysis (i.e., audio AUC = .81, 95% CI [.60, 1.00]; visual AUC = .84, 95% CI [.66, 1.00], and audiovisual AUC = .83, 95% CI [.63, 1.00]). Results suggest that computer-generated characters allow accurate discrimination of sex offenders with child victims and can be added to already validated stimuli to increase the number of valid profiles. The implications of audiovisual stimuli using computer-generated characters and their possible use in PPG evaluations are also discussed. © 2017, Springer Science+Business Media, LLC.
4.
Marschall-Lévesque, S.; Rouleau, J. -L.; Renaud, P.
In: Archives of Sexual Behavior, vol. 47, no. 2, pp. 417–428, 2018, ISSN: 00040002.
Abstract | Links | BibTeX | Tags: Acoustic Stimulation, Adolescent, adult, auditory stimulation, Child, clinical article, controlled study, crime victim, Crime Victims, Diagnosis, DSM-5, Feedback, female, human, Humans, male, Pedophilia, Penis, Photic Stimulation, photostimulation, physiology, Plethysmography, procedures, psychology, receiver operating characteristic, Sensory, sensory feedback, sex determination, Sex Offenses, sexual crime, stimulus, victim, Young Adult
@article{marschall-levesqueIncreasingValidProfiles2018,
title = {Increasing Valid Profiles in Phallometric Assessment of Sex Offenders with Child Victims: Combining the Strengths of Audio Stimuli and Synthetic Characters},
author = {S. Marschall-Lévesque and J. -L. Rouleau and P. Renaud},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85033397289&doi=10.1007%2fs10508-017-1053-y&partnerID=40&md5=bbb82341dfebd50938aa29358f8e0e69},
doi = {10.1007/s10508-017-1053-y},
issn = {00040002},
year = {2018},
date = {2018-01-01},
journal = {Archives of Sexual Behavior},
volume = {47},
number = {2},
pages = {417–428},
publisher = {Springer New York LLC},
abstract = {Penile plethysmography (PPG) is a measure of sexual interests that relies heavily on the stimuli it uses to generate valid results. Ethical considerations surrounding the use of real images in PPG have further limited the content admissible for these stimuli. To palliate this limitation, the current study aimed to combine audio and visual stimuli by incorporating computer-generated characters to create new stimuli capable of accurately classifying sex offenders with child victims, while also increasing the number of valid profiles. Three modalities (audio, visual, and audiovisual) were compared using two groups (15 sex offenders with child victims and 15 non-offenders). Both the new visual and audiovisual stimuli resulted in a 13% increase in the number of valid profiles at 2.5 mm, when compared to the standard audio stimuli. Furthermore, the new audiovisual stimuli generated a 34% increase in penile responses. All three modalities were able to discriminate between the two groups by their responses to the adult and child stimuli. Lastly, sexual interest indices for all three modalities could accurately classify participants in their appropriate groups, as demonstrated by ROC curve analysis (i.e., audio AUC = .81, 95% CI [.60, 1.00]; visual AUC = .84, 95% CI [.66, 1.00], and audiovisual AUC = .83, 95% CI [.63, 1.00]). Results suggest that computer-generated characters allow accurate discrimination of sex offenders with child victims and can be added to already validated stimuli to increase the number of valid profiles. The implications of audiovisual stimuli using computer-generated characters and their possible use in PPG evaluations are also discussed. © 2017, Springer Science+Business Media, LLC.},
keywords = {Acoustic Stimulation, Adolescent, adult, auditory stimulation, Child, clinical article, controlled study, crime victim, Crime Victims, Diagnosis, DSM-5, Feedback, female, human, Humans, male, Pedophilia, Penis, Photic Stimulation, photostimulation, physiology, Plethysmography, procedures, psychology, receiver operating characteristic, Sensory, sensory feedback, sex determination, Sex Offenses, sexual crime, stimulus, victim, Young Adult},
pubstate = {published},
tppubtype = {article}
}
Penile plethysmography (PPG) is a measure of sexual interests that relies heavily on the stimuli it uses to generate valid results. Ethical considerations surrounding the use of real images in PPG have further limited the content admissible for these stimuli. To palliate this limitation, the current study aimed to combine audio and visual stimuli by incorporating computer-generated characters to create new stimuli capable of accurately classifying sex offenders with child victims, while also increasing the number of valid profiles. Three modalities (audio, visual, and audiovisual) were compared using two groups (15 sex offenders with child victims and 15 non-offenders). Both the new visual and audiovisual stimuli resulted in a 13% increase in the number of valid profiles at 2.5 mm, when compared to the standard audio stimuli. Furthermore, the new audiovisual stimuli generated a 34% increase in penile responses. All three modalities were able to discriminate between the two groups by their responses to the adult and child stimuli. Lastly, sexual interest indices for all three modalities could accurately classify participants in their appropriate groups, as demonstrated by ROC curve analysis (i.e., audio AUC = .81, 95% CI [.60, 1.00]; visual AUC = .84, 95% CI [.66, 1.00], and audiovisual AUC = .83, 95% CI [.63, 1.00]). Results suggest that computer-generated characters allow accurate discrimination of sex offenders with child victims and can be added to already validated stimuli to increase the number of valid profiles. The implications of audiovisual stimuli using computer-generated characters and their possible use in PPG evaluations are also discussed. © 2017, Springer Science+Business Media, LLC.
5.
Nolet, K.; Rouleau, J. -L.; Benbouriche, M.; Emond, F. Carrier; Renaud, P.
How Ego Depletion Affects Sexual Self-Regulation: Is It More Than Resource Depletion? Journal Article
In: Journal of Sex Research, vol. 53, no. 8, pp. 994–1007, 2016, ISSN: 00224499, (Publisher: Routledge).
Abstract | Links | BibTeX | Tags: autoregulation, clinical article, excitation, heterosexual male, human, male, model, Plethysmography, self control, sexual arousal
@article{nolet_how_2016,
title = {How Ego Depletion Affects Sexual Self-Regulation: Is It More Than Resource Depletion?},
author = {K. Nolet and J. -L. Rouleau and M. Benbouriche and F. Carrier Emond and P. Renaud},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84951272683&doi=10.1080%2f00224499.2015.1096887&partnerID=40&md5=2a4d3e45b1f36ef76947a8173e095930},
doi = {10.1080/00224499.2015.1096887},
issn = {00224499},
year = {2016},
date = {2016-01-01},
journal = {Journal of Sex Research},
volume = {53},
number = {8},
pages = {994–1007},
publisher = {Routledge},
abstract = {Rational thinking and decision making are impacted when in a state of sexual arousal. The inability to self-regulate arousal can be linked to numerous problems, like sexual risk taking, infidelity, and sexual coercion. Studies have shown that most men are able to exert voluntary control over their sexual excitation with various levels of success. Both situational and dispositional factors can influence self-regulation achievement. The goal of this research was to investigate how ego depletion, a state of low self-control capacity, interacts with personality traits—propensities for sexual excitation and inhibition—and cognitive absorption, to cause sexual self-regulation failure. The sexual responses of 36 heterosexual males were assessed using penile plethysmography. They were asked to control their sexual arousal in two conditions, with and without ego depletion. Results suggest that ego depletion has opposite effects based on the trait sexual inhibition, as individuals moderately inhibited showed an increase in performance while highly inhibited ones showed a decrease. These results challenge the limited resource model of self-regulation and point to the importance of considering how people adapt to acute and high challenging conditions. Copyright © The Society for the Scientific Study of Sexuality.},
note = {Publisher: Routledge},
keywords = {autoregulation, clinical article, excitation, heterosexual male, human, male, model, Plethysmography, self control, sexual arousal},
pubstate = {published},
tppubtype = {article}
}
Rational thinking and decision making are impacted when in a state of sexual arousal. The inability to self-regulate arousal can be linked to numerous problems, like sexual risk taking, infidelity, and sexual coercion. Studies have shown that most men are able to exert voluntary control over their sexual excitation with various levels of success. Both situational and dispositional factors can influence self-regulation achievement. The goal of this research was to investigate how ego depletion, a state of low self-control capacity, interacts with personality traits—propensities for sexual excitation and inhibition—and cognitive absorption, to cause sexual self-regulation failure. The sexual responses of 36 heterosexual males were assessed using penile plethysmography. They were asked to control their sexual arousal in two conditions, with and without ego depletion. Results suggest that ego depletion has opposite effects based on the trait sexual inhibition, as individuals moderately inhibited showed an increase in performance while highly inhibited ones showed a decrease. These results challenge the limited resource model of self-regulation and point to the importance of considering how people adapt to acute and high challenging conditions. Copyright © The Society for the Scientific Study of Sexuality.
6.
Nolet, K.; Rouleau, J. -L.; Benbouriche, M.; Emond, F. Carrier; Renaud, P.
How Ego Depletion Affects Sexual Self-Regulation: Is It More Than Resource Depletion? Journal Article
In: Journal of Sex Research, vol. 53, no. 8, pp. 994–1007, 2016, ISSN: 00224499.
Abstract | Links | BibTeX | Tags: autoregulation, clinical article, excitation, heterosexual male, human, male, model, Plethysmography, self control, sexual arousal
@article{noletHowEgoDepletion2016,
title = {How Ego Depletion Affects Sexual Self-Regulation: Is It More Than Resource Depletion?},
author = {K. Nolet and J. -L. Rouleau and M. Benbouriche and F. Carrier Emond and P. Renaud},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84951272683&doi=10.1080%2f00224499.2015.1096887&partnerID=40&md5=2a4d3e45b1f36ef76947a8173e095930},
doi = {10.1080/00224499.2015.1096887},
issn = {00224499},
year = {2016},
date = {2016-01-01},
journal = {Journal of Sex Research},
volume = {53},
number = {8},
pages = {994–1007},
publisher = {Routledge},
abstract = {Rational thinking and decision making are impacted when in a state of sexual arousal. The inability to self-regulate arousal can be linked to numerous problems, like sexual risk taking, infidelity, and sexual coercion. Studies have shown that most men are able to exert voluntary control over their sexual excitation with various levels of success. Both situational and dispositional factors can influence self-regulation achievement. The goal of this research was to investigate how ego depletion, a state of low self-control capacity, interacts with personality traits—propensities for sexual excitation and inhibition—and cognitive absorption, to cause sexual self-regulation failure. The sexual responses of 36 heterosexual males were assessed using penile plethysmography. They were asked to control their sexual arousal in two conditions, with and without ego depletion. Results suggest that ego depletion has opposite effects based on the trait sexual inhibition, as individuals moderately inhibited showed an increase in performance while highly inhibited ones showed a decrease. These results challenge the limited resource model of self-regulation and point to the importance of considering how people adapt to acute and high challenging conditions. Copyright © The Society for the Scientific Study of Sexuality.},
keywords = {autoregulation, clinical article, excitation, heterosexual male, human, male, model, Plethysmography, self control, sexual arousal},
pubstate = {published},
tppubtype = {article}
}
Rational thinking and decision making are impacted when in a state of sexual arousal. The inability to self-regulate arousal can be linked to numerous problems, like sexual risk taking, infidelity, and sexual coercion. Studies have shown that most men are able to exert voluntary control over their sexual excitation with various levels of success. Both situational and dispositional factors can influence self-regulation achievement. The goal of this research was to investigate how ego depletion, a state of low self-control capacity, interacts with personality traits—propensities for sexual excitation and inhibition—and cognitive absorption, to cause sexual self-regulation failure. The sexual responses of 36 heterosexual males were assessed using penile plethysmography. They were asked to control their sexual arousal in two conditions, with and without ego depletion. Results suggest that ego depletion has opposite effects based on the trait sexual inhibition, as individuals moderately inhibited showed an increase in performance while highly inhibited ones showed a decrease. These results challenge the limited resource model of self-regulation and point to the importance of considering how people adapt to acute and high challenging conditions. Copyright © The Society for the Scientific Study of Sexuality.
7.
Dennis, E.; Rouleau, J. -L.; Renaud, P.; Nolet, K.; Saumur, C.
A pilot development of virtual stimuli depicting affective dispositions for penile plethysmography assessment of sex offenders Journal Article
In: Canadian Journal of Human Sexuality, vol. 23, no. 3, pp. 200–208, 2014, ISSN: 11884517 (ISSN), (Publisher: University of Toronto Press Inc.).
Abstract | Links | BibTeX | Tags: adult, Affect, affective disposition, article, assessment, computer program, Facial Expression, Fear, female, happiness, heterosexuality, human, human experiment, male, normal human, penile blood flow, penile plethysmography, pilot study, Plethysmography, sadness, sex offenders, sexual arousal, Sexual Behavior, sexual crime, sexual orientation, undergraduate student, virtual reality, Virtual stimuli
@article{dennis_pilot_2014,
title = {A pilot development of virtual stimuli depicting affective dispositions for penile plethysmography assessment of sex offenders},
author = {E. Dennis and J. -L. Rouleau and P. Renaud and K. Nolet and C. Saumur},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84938522255&doi=10.3138%2fcjhs.2529&partnerID=40&md5=43cf6631bb2cd619ca0d049ae3a3b093},
doi = {10.3138/cjhs.2529},
issn = {11884517 (ISSN)},
year = {2014},
date = {2014-01-01},
journal = {Canadian Journal of Human Sexuality},
volume = {23},
number = {3},
pages = {200–208},
publisher = {University of Toronto Press Inc.},
abstract = {There are concerns regarding the reliability, realism, and validity of stimulus materials used in the assessment of sexual interests among sex offenders. This article explores new stimulus materials for use with penile plethysmography (PPG) assessments. First, this paper presents a pilot study where undergraduate students rated virtual characters (male and female) on perceived age. In addition, the materials developed are unique in that they depict the characters exhibiting varying affective dispositions, including neutral, fearful, sad, joyful, and seductive. Participants in the first study were also asked to identify the affective disposition of the virtual characters, and results suggest that affective disposition was largely perceived as intended, especially in terms of identifying the general emotional valence of the affective dispositions (i.e., positive versus negative). In a second pilot study, we used the computer-generated images to measure sexual arousal responses in a group of non-deviant males recruited in the community. Responses measured through penile plethysmography suggest participants responded to the stimuli as expected, as the greatest amount of sexual arousal was recorded when participants were shown the adult female character. In addition, participants responded with significant arousal only when the adult female character was depicted as sexually open (joyful or seductive), rather than sexually closed or neutral. Results suggest these materials may discriminate sexual interests if applied within clinical forensic assessment of sex offenders. © 2014 by the Sex Information and Education Council of Canada.},
note = {Publisher: University of Toronto Press Inc.},
keywords = {adult, Affect, affective disposition, article, assessment, computer program, Facial Expression, Fear, female, happiness, heterosexuality, human, human experiment, male, normal human, penile blood flow, penile plethysmography, pilot study, Plethysmography, sadness, sex offenders, sexual arousal, Sexual Behavior, sexual crime, sexual orientation, undergraduate student, virtual reality, Virtual stimuli},
pubstate = {published},
tppubtype = {article}
}
There are concerns regarding the reliability, realism, and validity of stimulus materials used in the assessment of sexual interests among sex offenders. This article explores new stimulus materials for use with penile plethysmography (PPG) assessments. First, this paper presents a pilot study where undergraduate students rated virtual characters (male and female) on perceived age. In addition, the materials developed are unique in that they depict the characters exhibiting varying affective dispositions, including neutral, fearful, sad, joyful, and seductive. Participants in the first study were also asked to identify the affective disposition of the virtual characters, and results suggest that affective disposition was largely perceived as intended, especially in terms of identifying the general emotional valence of the affective dispositions (i.e., positive versus negative). In a second pilot study, we used the computer-generated images to measure sexual arousal responses in a group of non-deviant males recruited in the community. Responses measured through penile plethysmography suggest participants responded to the stimuli as expected, as the greatest amount of sexual arousal was recorded when participants were shown the adult female character. In addition, participants responded with significant arousal only when the adult female character was depicted as sexually open (joyful or seductive), rather than sexually closed or neutral. Results suggest these materials may discriminate sexual interests if applied within clinical forensic assessment of sex offenders. © 2014 by the Sex Information and Education Council of Canada.
8.
Renaud, P.; Trottier, D.; Rouleau, J. -L.; Goyette, M.; Saumur, C.; Boukhalfi, T.; Bouchard, S.
Using immersive virtual reality and anatomically correct computer-generated characters in the forensic assessment of deviant sexual preferences Journal Article
In: Virtual Reality, vol. 18, no. 1, pp. 37–47, 2014, ISSN: 13594338, (Publisher: Springer London).
Abstract | Links | BibTeX | Tags: Area Under the Curve (AUC), Classification accuracy, Computer forensics, Computer generated characters, Deregulation, Gears, Immersive virtual reality, Pedophilia, Plethysmography, Receiver operating characteristic analysis, Self regulation, Virtual addresses, Virtual character, virtual reality
@article{renaud_using_2014,
title = {Using immersive virtual reality and anatomically correct computer-generated characters in the forensic assessment of deviant sexual preferences},
author = {P. Renaud and D. Trottier and J. -L. Rouleau and M. Goyette and C. Saumur and T. Boukhalfi and S. Bouchard},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84893969900&doi=10.1007%2fs10055-013-0235-8&partnerID=40&md5=847ee510fd6f3c30ec6285071e0df167},
doi = {10.1007/s10055-013-0235-8},
issn = {13594338},
year = {2014},
date = {2014-01-01},
journal = {Virtual Reality},
volume = {18},
number = {1},
pages = {37–47},
publisher = {Springer London},
abstract = {Penile plethysmography (PPG) is the gold standard for the assessment of sexual interests, especially among sex offenders of children. Nonetheless, this method faces some ethical limitations inherent to the nature of its stimuli and could benefit from the improvement of its ecological validity. The use of computer-generated characters (CGC) in virtual immersion for PPG assessment might help address these issues. A new application developed to design made-to-measure anatomically correct virtual characters compatible with the Tanner developmental stages is presented. The main purpose of this study was to determine how the virtual reality (VR) modality compares to the standard auditory modality on their capacity to generate sexual arousal profiles and deviance differentials indicative of sexual interests. The erectile responses of 22 sex offenders of children and 42 non-deviant adult males were recorded. While both stimulus modalities generated significantly different genital arousal profiles for sex offenders of children and non-deviant males, deviance differentials calculated from the VR modality allowed for significantly higher classification accuracy. Performing receiver operating characteristic analyses further assessed discriminant potential. Auditory modality yielded an area under the curve (AUC) of 0.79 (SE = 0.059) while CGC in VR yielded an AUC of 0.90 (SE = 0.052). Overall, results suggest that the VR modality allows significantly better group classification accuracy and discriminant validity than audio stimuli, which provide empirical support for the use of this new method for PPG assessment. Additionally, the potential use of VR in interventions pertaining to self-regulation of sexual offending is addressed in conclusion. © 2013 Springer-Verlag London.},
note = {Publisher: Springer London},
keywords = {Area Under the Curve (AUC), Classification accuracy, Computer forensics, Computer generated characters, Deregulation, Gears, Immersive virtual reality, Pedophilia, Plethysmography, Receiver operating characteristic analysis, Self regulation, Virtual addresses, Virtual character, virtual reality},
pubstate = {published},
tppubtype = {article}
}
Penile plethysmography (PPG) is the gold standard for the assessment of sexual interests, especially among sex offenders of children. Nonetheless, this method faces some ethical limitations inherent to the nature of its stimuli and could benefit from the improvement of its ecological validity. The use of computer-generated characters (CGC) in virtual immersion for PPG assessment might help address these issues. A new application developed to design made-to-measure anatomically correct virtual characters compatible with the Tanner developmental stages is presented. The main purpose of this study was to determine how the virtual reality (VR) modality compares to the standard auditory modality on their capacity to generate sexual arousal profiles and deviance differentials indicative of sexual interests. The erectile responses of 22 sex offenders of children and 42 non-deviant adult males were recorded. While both stimulus modalities generated significantly different genital arousal profiles for sex offenders of children and non-deviant males, deviance differentials calculated from the VR modality allowed for significantly higher classification accuracy. Performing receiver operating characteristic analyses further assessed discriminant potential. Auditory modality yielded an area under the curve (AUC) of 0.79 (SE = 0.059) while CGC in VR yielded an AUC of 0.90 (SE = 0.052). Overall, results suggest that the VR modality allows significantly better group classification accuracy and discriminant validity than audio stimuli, which provide empirical support for the use of this new method for PPG assessment. Additionally, the potential use of VR in interventions pertaining to self-regulation of sexual offending is addressed in conclusion. © 2013 Springer-Verlag London.
9.
Trottier, D.; Rouleau, J. -L.; Renaud, P.; Goyette, M.
Using eye tracking to identify faking attempts during penile plethysmography assessment Journal Article
In: Journal of Sex Research, vol. 51, no. 8, pp. 946–955, 2014, ISSN: 00224499, (Publisher: Routledge).
Abstract | Links | BibTeX | Tags: adult, Deception, eye movement, Eye Movement Measurements, Eye movements, human, Humans, male, Middle Aged, oculography, Penile Erection, penis erection, physiology, Plethysmography, standards, Young Adult
@article{trottier_using_2014,
title = {Using eye tracking to identify faking attempts during penile plethysmography assessment},
author = {D. Trottier and J. -L. Rouleau and P. Renaud and M. Goyette},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84905121531&doi=10.1080%2f00224499.2013.832133&partnerID=40&md5=a86ec0b94f759bd9324ec505e3df0844},
doi = {10.1080/00224499.2013.832133},
issn = {00224499},
year = {2014},
date = {2014-01-01},
journal = {Journal of Sex Research},
volume = {51},
number = {8},
pages = {946–955},
publisher = {Routledge},
abstract = {Penile plethysmography (PPG) is considered the most rigorous method for sexual interest assessment. Nevertheless, it is subject to faking attempts by participants, which compromises the internal validity of the instrument. To date, various attempts have been made to limit voluntary control of sexual response during PPG assessments, without satisfactory results. This exploratory research examined eye-tracking technologies' ability to identify the presence of cognitive strategies responsible for erectile inhibition during PPG assessment. Eye movements and penile responses for 20 subjects were recorded while exploring animated human-like computer-generated stimuli in a virtual environment under three distinct viewing conditions: (a) the free visual exploration of a preferred sexual stimulus without erectile inhibition; (b) the viewing of a preferred sexual stimulus with erectile inhibition; and (c) the free visual exploration of a non-preferred sexual stimulus. Results suggest that attempts to control erectile responses generate specific eye-movement variations, characterized by a general deceleration of the exploration process and limited exploration of the erogenous zone. Findings indicate that recording eye movements can provide significant information on the presence of competing covert processes responsible for erectile inhibition. The use of eye-tracking technologies during PPG could therefore lead to improved internal validity of the plethysmographic procedure. © 2014 Copyright The Society for the Scientific Study of Sexuality.},
note = {Publisher: Routledge},
keywords = {adult, Deception, eye movement, Eye Movement Measurements, Eye movements, human, Humans, male, Middle Aged, oculography, Penile Erection, penis erection, physiology, Plethysmography, standards, Young Adult},
pubstate = {published},
tppubtype = {article}
}
Penile plethysmography (PPG) is considered the most rigorous method for sexual interest assessment. Nevertheless, it is subject to faking attempts by participants, which compromises the internal validity of the instrument. To date, various attempts have been made to limit voluntary control of sexual response during PPG assessments, without satisfactory results. This exploratory research examined eye-tracking technologies' ability to identify the presence of cognitive strategies responsible for erectile inhibition during PPG assessment. Eye movements and penile responses for 20 subjects were recorded while exploring animated human-like computer-generated stimuli in a virtual environment under three distinct viewing conditions: (a) the free visual exploration of a preferred sexual stimulus without erectile inhibition; (b) the viewing of a preferred sexual stimulus with erectile inhibition; and (c) the free visual exploration of a non-preferred sexual stimulus. Results suggest that attempts to control erectile responses generate specific eye-movement variations, characterized by a general deceleration of the exploration process and limited exploration of the erogenous zone. Findings indicate that recording eye movements can provide significant information on the presence of competing covert processes responsible for erectile inhibition. The use of eye-tracking technologies during PPG could therefore lead to improved internal validity of the plethysmographic procedure. © 2014 Copyright The Society for the Scientific Study of Sexuality.
10.
Dennis, E.; Rouleau, J. -L.; Renaud, P.; Nolet, K.; Saumur, C.
A pilot development of virtual stimuli depicting affective dispositions for penile plethysmography assessment of sex offenders Journal Article
In: Canadian Journal of Human Sexuality, vol. 23, no. 3, pp. 200–208, 2014, ISSN: 11884517 (ISSN).
Abstract | Links | BibTeX | Tags: adult, Affect, affective disposition, article, assessment, computer program, Facial Expression, Fear, female, happiness, heterosexuality, human, human experiment, male, normal human, penile blood flow, penile plethysmography, pilot study, Plethysmography, sadness, sex offenders, sexual arousal, Sexual Behavior, sexual crime, sexual orientation, undergraduate student, virtual reality, Virtual stimuli
@article{dennisPilotDevelopmentVirtual2014,
title = {A pilot development of virtual stimuli depicting affective dispositions for penile plethysmography assessment of sex offenders},
author = {E. Dennis and J. -L. Rouleau and P. Renaud and K. Nolet and C. Saumur},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84938522255&doi=10.3138%2fcjhs.2529&partnerID=40&md5=43cf6631bb2cd619ca0d049ae3a3b093},
doi = {10.3138/cjhs.2529},
issn = {11884517 (ISSN)},
year = {2014},
date = {2014-01-01},
journal = {Canadian Journal of Human Sexuality},
volume = {23},
number = {3},
pages = {200–208},
publisher = {University of Toronto Press Inc.},
abstract = {There are concerns regarding the reliability, realism, and validity of stimulus materials used in the assessment of sexual interests among sex offenders. This article explores new stimulus materials for use with penile plethysmography (PPG) assessments. First, this paper presents a pilot study where undergraduate students rated virtual characters (male and female) on perceived age. In addition, the materials developed are unique in that they depict the characters exhibiting varying affective dispositions, including neutral, fearful, sad, joyful, and seductive. Participants in the first study were also asked to identify the affective disposition of the virtual characters, and results suggest that affective disposition was largely perceived as intended, especially in terms of identifying the general emotional valence of the affective dispositions (i.e., positive versus negative). In a second pilot study, we used the computer-generated images to measure sexual arousal responses in a group of non-deviant males recruited in the community. Responses measured through penile plethysmography suggest participants responded to the stimuli as expected, as the greatest amount of sexual arousal was recorded when participants were shown the adult female character. In addition, participants responded with significant arousal only when the adult female character was depicted as sexually open (joyful or seductive), rather than sexually closed or neutral. Results suggest these materials may discriminate sexual interests if applied within clinical forensic assessment of sex offenders. © 2014 by the Sex Information and Education Council of Canada.},
keywords = {adult, Affect, affective disposition, article, assessment, computer program, Facial Expression, Fear, female, happiness, heterosexuality, human, human experiment, male, normal human, penile blood flow, penile plethysmography, pilot study, Plethysmography, sadness, sex offenders, sexual arousal, Sexual Behavior, sexual crime, sexual orientation, undergraduate student, virtual reality, Virtual stimuli},
pubstate = {published},
tppubtype = {article}
}
There are concerns regarding the reliability, realism, and validity of stimulus materials used in the assessment of sexual interests among sex offenders. This article explores new stimulus materials for use with penile plethysmography (PPG) assessments. First, this paper presents a pilot study where undergraduate students rated virtual characters (male and female) on perceived age. In addition, the materials developed are unique in that they depict the characters exhibiting varying affective dispositions, including neutral, fearful, sad, joyful, and seductive. Participants in the first study were also asked to identify the affective disposition of the virtual characters, and results suggest that affective disposition was largely perceived as intended, especially in terms of identifying the general emotional valence of the affective dispositions (i.e., positive versus negative). In a second pilot study, we used the computer-generated images to measure sexual arousal responses in a group of non-deviant males recruited in the community. Responses measured through penile plethysmography suggest participants responded to the stimuli as expected, as the greatest amount of sexual arousal was recorded when participants were shown the adult female character. In addition, participants responded with significant arousal only when the adult female character was depicted as sexually open (joyful or seductive), rather than sexually closed or neutral. Results suggest these materials may discriminate sexual interests if applied within clinical forensic assessment of sex offenders. © 2014 by the Sex Information and Education Council of Canada.