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.
Warren, C. M.; Breuer, A. T.; Kantner, J.; Fiset, D.; Blais, C.; Masson, M. E. J.
Target-distractor interference in the attentional blink implicates the locus coeruleus-norepinephrine system Article de journal
Dans: Psychonomic Bulletin and Review, vol. 16, no 6, p. 1106–1111, 2009, ISSN: 10699384.
Résumé | Liens | BibTeX | Étiquettes: article, Attentional Blink, human, Humans, Learning, locus ceruleus, Locus Coeruleus, Memory, Models, noradrenalin, Norepinephrine, Pattern Recognition, perception, Perceptual Masking, physiology, Psychological, psychological model, Psychophysics, reaction time, Serial Learning, short term memory, Short-Term, Visual
@article{warren_target-distractor_2009,
title = {Target-distractor interference in the attentional blink implicates the locus coeruleus-norepinephrine system},
author = {C. M. Warren and A. T. Breuer and J. Kantner and D. Fiset and C. Blais and M. E. J. Masson},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-74849134787&doi=10.3758%2fPBR.16.6.1106&partnerID=40&md5=dedfbcb0f338038cbcaedefcbc9d184f},
doi = {10.3758/PBR.16.6.1106},
issn = {10699384},
year = {2009},
date = {2009-01-01},
journal = {Psychonomic Bulletin and Review},
volume = {16},
number = {6},
pages = {1106–1111},
abstract = {We provide evidence that the locus coeruleus-norephinephrine (LC-NE) system is the neurophysiological basis of the attentional blink. The attentional blink refers to decreased accuracy for reporting the second of two targets in a rapid serial visual presentation of distractors. The LC-NE account of the attentional blink posits that targets elicit a facilitative LC-NE system response that is available for the first target but subsequently unavailable to the second, due to the autoinhibitory nature of the LC-NE system. We propose a modification of the LC-NE account, suggesting that the LC-NE system response is elicited by interference between mutually exclusive responses demanded by temporally proximal targets and distractors. We increased the interference between the first target and the following distractor by reducing the time between them. For identifying the second target this high-interference condition yielded a benefit up to 200 msec after onset of the first, followed by a decrease in accuracy. Consistent with our modification of the LC-NE account, this result suggests a temporarily enhanced LC-NE system response to increased target-distractor interference. © 2009 The Psychonomic Society, Inc.},
keywords = {article, Attentional Blink, human, Humans, Learning, locus ceruleus, Locus Coeruleus, Memory, Models, noradrenalin, Norepinephrine, Pattern Recognition, perception, Perceptual Masking, physiology, Psychological, psychological model, Psychophysics, reaction time, Serial Learning, short term memory, Short-Term, Visual},
pubstate = {published},
tppubtype = {article}
}
We provide evidence that the locus coeruleus-norephinephrine (LC-NE) system is the neurophysiological basis of the attentional blink. The attentional blink refers to decreased accuracy for reporting the second of two targets in a rapid serial visual presentation of distractors. The LC-NE account of the attentional blink posits that targets elicit a facilitative LC-NE system response that is available for the first target but subsequently unavailable to the second, due to the autoinhibitory nature of the LC-NE system. We propose a modification of the LC-NE account, suggesting that the LC-NE system response is elicited by interference between mutually exclusive responses demanded by temporally proximal targets and distractors. We increased the interference between the first target and the following distractor by reducing the time between them. For identifying the second target this high-interference condition yielded a benefit up to 200 msec after onset of the first, followed by a decrease in accuracy. Consistent with our modification of the LC-NE account, this result suggests a temporarily enhanced LC-NE system response to increased target-distractor interference. © 2009 The Psychonomic Society, Inc.