Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Frédéric J.A.M. Poirier"'
Publikováno v:
Optometry and Vision Science
Saccades made toward eccentric targets (>10 to 15 degrees of eccentricity) are often accompanied by head movements by unrestrained participants. There is considerable individual variability in the amount of head rotation1–3 that remains unexplained
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5dbfc193b5d340f1ac851608c856f22a
https://doi.org/10.1097/opx.0000000000000709
https://doi.org/10.1097/opx.0000000000000709
Publikováno v:
Vision Research. 46:2443-2455
Several recent studies have used radial frequency patterns to investigate intermediate-level shape perception, a critical precursor to object recognition. Here, we developed the first neural model of RF perception based on known V4 properties that ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ebd51cb57a4efd78a7cfe2bc9575c51
https://doi.org/10.1016/j.visres.2006.01.026
https://doi.org/10.1016/j.visres.2006.01.026
Autor:
Frédéric J.A.M. Poirier, Rick Gurnsey
Publikováno v:
Vision Research. 42(2):227-238
Eccentricity-dependent sensitivity losses in spatial discrimination tasks can often be overcome by scaling stimuli at each eccentricity by a factor F=1+E/E(2). However, because there may be more than one eccentricity-dependent limitation at play in a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::163bf8cabcae402eec90f71e32573c5f
Autor:
Frédéric J.A.M. Poirier, Rick Gurnsey
Publikováno v:
Spatial Vision. 11:349-366
This study investigated the effects of eccentricity and spatial frequency on the discrimination of vertical and oblique (10 deg from vertical) Gabor patches. Within a display stimuli were scaled by a factor F = 1 + E/E2 at each eccentricity (E) in an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fc682fed48b6dd408dc1b219a673b50
https://doi.org/10.1163/156856898x00077
https://doi.org/10.1163/156856898x00077
Publikováno v:
Perception. 25:861-874
Davis and Driver presented evidence suggesting that Kanizsa-type subjective contours could be detected in a visual search task in a time that is independent of the number of nonsubjective contour distractors. A linking connection was made between the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc53c7fbd2949c23edce8d5698238d81
https://doi.org/10.1068/p250861
https://doi.org/10.1068/p250861
Publikováno v:
Journal of vision. 12(6)
Facial expressions are important for human communications. Face perception studies often measure the impact of major degradation (e.g., noise, inversion, short presentations, masking, alterations) on natural expression recognition performance. Here,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::403b6d07eccd904bf94a4e7a216ad4dd
https://pubmed.ncbi.nlm.nih.gov/22728677
https://pubmed.ncbi.nlm.nih.gov/22728677
Publikováno v:
Vision research. 47(23)
Object perception uses a variety of visual cues, including shape cues derived from sides and convexities. Two recent masking studies using radial frequency patterns have argued, respectively, for a predominant role of convexity [Habak, C., Wilkinson,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::821c866ca85aa1f73f12e2803bc5934c
https://pubmed.ncbi.nlm.nih.gov/17889924
https://pubmed.ncbi.nlm.nih.gov/17889924
Autor:
Frédéric J.A.M. Poirier, Rick Gurnsey
Publikováno v:
Vision research. 45(18)
Eccentricity-dependent resolution losses are sometimes compensated for in psychophysical experiments by magnifying (scaling) stimuli at each eccentricity. The use of either pre-selected scaling factors or unscaled stimuli sometimes leads to non-monot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f423c75a23b2a137ecb9e0d4e10e4a2
https://pubmed.ncbi.nlm.nih.gov/15979465
https://pubmed.ncbi.nlm.nih.gov/15979465
Publikováno v:
Journal of Vision. 12:21-21
Identical textured disks can appear white or black depending on the luminance properties of the surrounding textured region (B. L. Anderson & J. Winawer, 2005, 2008). This occurs when the stimulus is perceptually segmented in three layers: (1) a unif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22f0a9107ae3f1c4491e72a6fcc932a2
https://doi.org/10.1167/12.1.21
https://doi.org/10.1167/12.1.21
Publikováno v:
Journal of Vision. 10:9-9
Symmetry is usually computationally expensive to encode reliably, and yet it is relatively effortless to perceive. Here, we extend F. J. A. M. Poirier and H. R. Wilson's (2006) model for shape perception to account for H. R. Wilson and F. Wilkinson's
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48762d3b0724c3c4f85be31c3b0c13ae
https://doi.org/10.1167/10.1.9
https://doi.org/10.1167/10.1.9