Slide
Centre Interdisciplinaire
de Recherche et d’Innovation
en Cybersécurité et Société
de Recherche et d’Innovation
en Cybersécurité et Société
1.
Fiset, D.; Blais, C.; Arguin, M.; Tadros, K.; Éthier-Majcher, C.; Bub, D.; Gosselin, F.
The spatio-temporal dynamics of visual letter recognition Article de journal
Dans: Cognitive Neuropsychology, vol. 26, no 1, p. 23–35, 2009, ISSN: 02643294.
Résumé | Liens | BibTeX | Étiquettes: article, bootstrapping, Bubbles technique, Discrimination Learning, human, Humans, Image analysis, linear regression analysis, methodology, Models, Nonlinear Dynamics, nonlinear system, Pattern Recognition, Photic Stimulation, photostimulation, physiology, priority journal, Psychological, psychological model, reaction time, recognition, Recognition (Psychology), task performance, temporal summation, time, Time Factors, Visual, word recognition
@article{fiset_spatio-temporal_2009,
title = {The spatio-temporal dynamics of visual letter recognition},
author = {D. Fiset and C. Blais and M. Arguin and K. Tadros and C. Éthier-Majcher and D. Bub and F. Gosselin},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-67649525418&doi=10.1080%2f02643290802421160&partnerID=40&md5=bca7bda93d59994f2679faff9d93f46a},
doi = {10.1080/02643290802421160},
issn = {02643294},
year = {2009},
date = {2009-01-01},
journal = {Cognitive Neuropsychology},
volume = {26},
number = {1},
pages = {23–35},
abstract = {We applied the Bubbles technique to reveal directly the spatio-temporal features of uppercase Arial letter identification. We asked four normal readers to each identify 26,000 letters that were randomly sampled in space and time; afterwards, we performed multiple linear regressions on the participant's response accuracy and the space-time samples. We contend that each cluster of connected significant regression coefficients is a letter feature. To bridge the gap between the letter identification literature and this experiment, we also determined the relative importance of the features proposed in the letter identification literature. Results show clear modulations of the relative importance of the letter features of some letters across time, demonstrating that letter features are not always extracted simultaneously at constant speeds. Furthermore, of all the feature classes proposed in the literature, line terminations and horizontals appear to be the two most important for letter identification. © 2008 Psychology Press, an imprint of the Taylor & Francis Group.},
keywords = {article, bootstrapping, Bubbles technique, Discrimination Learning, human, Humans, Image analysis, linear regression analysis, methodology, Models, Nonlinear Dynamics, nonlinear system, Pattern Recognition, Photic Stimulation, photostimulation, physiology, priority journal, Psychological, psychological model, reaction time, recognition, Recognition (Psychology), task performance, temporal summation, time, Time Factors, Visual, word recognition},
pubstate = {published},
tppubtype = {article}
}
We applied the Bubbles technique to reveal directly the spatio-temporal features of uppercase Arial letter identification. We asked four normal readers to each identify 26,000 letters that were randomly sampled in space and time; afterwards, we performed multiple linear regressions on the participant's response accuracy and the space-time samples. We contend that each cluster of connected significant regression coefficients is a letter feature. To bridge the gap between the letter identification literature and this experiment, we also determined the relative importance of the features proposed in the letter identification literature. Results show clear modulations of the relative importance of the letter features of some letters across time, demonstrating that letter features are not always extracted simultaneously at constant speeds. Furthermore, of all the feature classes proposed in the literature, line terminations and horizontals appear to be the two most important for letter identification. © 2008 Psychology Press, an imprint of the Taylor & Francis Group.
2.
Bouchard, S.; Gauthier, J.; Nouwen, A.; Ivers, H.; Vallières, A.; Simard, S.; Fournier, T.
Temporal relationship between dysfunctional beliefs, self-efficacy and panic apprehension in the treatment of panic disorder with agoraphobia Article de journal
Dans: Journal of Behavior Therapy and Experimental Psychiatry, vol. 38, no 3, p. 275–292, 2007, ISSN: 00057916.
Résumé | Liens | BibTeX | Étiquettes: adult, agoraphobia, article, Aversive Therapy, behavior therapy, Circadian Rhythm, clinical article, cognition, Cognition Disorders, cognitive therapy, controlled study, Diagnostic and Statistical Manual of Mental Disorders, female, Health Status, human, Humans, Individuality, male, Medical Records, Models, panic, Panic Disorder, Psychiatric Status Rating Scales, Psychological, Self Concept, Self Efficacy, Sensation, Time Factors, treatment outcome
@article{bouchard_temporal_2007,
title = {Temporal relationship between dysfunctional beliefs, self-efficacy and panic apprehension in the treatment of panic disorder with agoraphobia},
author = {S. Bouchard and J. Gauthier and A. Nouwen and H. Ivers and A. Vallières and S. Simard and T. Fournier},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-34447561574&doi=10.1016%2fj.jbtep.2006.08.002&partnerID=40&md5=8f563e24b9c604c9a3b1361da1f84bf4},
doi = {10.1016/j.jbtep.2006.08.002},
issn = {00057916},
year = {2007},
date = {2007-01-01},
journal = {Journal of Behavior Therapy and Experimental Psychiatry},
volume = {38},
number = {3},
pages = {275–292},
abstract = {The aim of this study is to assess if changes in dysfunctional beliefs and self-efficacy precede changes in panic apprehension in the treatment of panic disorder with agoraphobia. Subjects participated in a larger study comparing the effectiveness of cognitive restructuring and exposure. Four variables were measured: (a) the strength of each subject's main belief toward the consequence of a panic attack; (b) perceived self-efficacy to control a panic attack in the presence of panicogenic body sensations; (c) perceived self-efficacy to control a panic attack in the presence of panicogenic thoughts; and (d) the level of panic apprehension of a panic attack. Variables were recorded daily on a "0" to "100" scale using category partitioning. Multivariate time series analysis and "causality testing" showed that, for all participants, cognitive changes preceded changes in the level of panic apprehension. Important individual differences were observed in the contribution of each variable to the prediction of change in panic apprehension. Changes in apprehension were preceded by changes in belief in three cases, by changes in self-efficacy in six cases, and by changes in both belief and self-efficacy in the remaining three cases. This pattern was observed in participants in the exposure condition as well as those in the cognitive restructuring condition. These results provide more empirical support to the hypothesis that cognitive changes precede improvement. They also underlie the importance of individual differences in the process of change. Finally, this study does not support the hypothesis that exposure and cognitive restructuring operate through different mechanisms, namely a behavioral one and a cognitive one. © 2006 Elsevier Ltd. All rights reserved.},
keywords = {adult, agoraphobia, article, Aversive Therapy, behavior therapy, Circadian Rhythm, clinical article, cognition, Cognition Disorders, cognitive therapy, controlled study, Diagnostic and Statistical Manual of Mental Disorders, female, Health Status, human, Humans, Individuality, male, Medical Records, Models, panic, Panic Disorder, Psychiatric Status Rating Scales, Psychological, Self Concept, Self Efficacy, Sensation, Time Factors, treatment outcome},
pubstate = {published},
tppubtype = {article}
}
The aim of this study is to assess if changes in dysfunctional beliefs and self-efficacy precede changes in panic apprehension in the treatment of panic disorder with agoraphobia. Subjects participated in a larger study comparing the effectiveness of cognitive restructuring and exposure. Four variables were measured: (a) the strength of each subject's main belief toward the consequence of a panic attack; (b) perceived self-efficacy to control a panic attack in the presence of panicogenic body sensations; (c) perceived self-efficacy to control a panic attack in the presence of panicogenic thoughts; and (d) the level of panic apprehension of a panic attack. Variables were recorded daily on a "0" to "100" scale using category partitioning. Multivariate time series analysis and "causality testing" showed that, for all participants, cognitive changes preceded changes in the level of panic apprehension. Important individual differences were observed in the contribution of each variable to the prediction of change in panic apprehension. Changes in apprehension were preceded by changes in belief in three cases, by changes in self-efficacy in six cases, and by changes in both belief and self-efficacy in the remaining three cases. This pattern was observed in participants in the exposure condition as well as those in the cognitive restructuring condition. These results provide more empirical support to the hypothesis that cognitive changes precede improvement. They also underlie the importance of individual differences in the process of change. Finally, this study does not support the hypothesis that exposure and cognitive restructuring operate through different mechanisms, namely a behavioral one and a cognitive one. © 2006 Elsevier Ltd. All rights reserved.