کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4323393 1291770 2006 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A Motion-Dependent Distortion of Retinotopy in Area V4
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب سلولی و مولکولی
پیش نمایش صفحه اول مقاله
A Motion-Dependent Distortion of Retinotopy in Area V4
چکیده انگلیسی

SummaryWhen one element in an apparent motion sequence differs in color from the others, it is perceived as shifted along the motion trajectory. We examined whether V4 neurons encode the physical or perceived location of this “flashed” element by recording neuronal responses while monkeys viewed these stimuli. The retinotopic locus of V4 activity evoked by the flashed element shifted along the motion trajectory. The magnitude of the shift is consistent with the perceptual shift in humans viewing identical stimuli. This retinotopic distortion depended on the presence of a flashed element but was observed for both color-selective and non-color-selective neurons. The distortion was undiminished when the flashed element terminated the sequence, a condition that reduced the perceptual shift in humans. These findings are consistent with a Bayesian model of localization in which perceived location is derived from position signals optimally integrated across visual areas.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: - Volume 49, Issue 3, 2 February 2006, Pages 447–457
نویسندگان
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