کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9348707 1263623 2005 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The influences of visibility and anomalous integration processes on the perception of global spatial form versus motion in human amblyopia
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی سیستم های حسی
پیش نمایش صفحه اول مقاله
The influences of visibility and anomalous integration processes on the perception of global spatial form versus motion in human amblyopia
چکیده انگلیسی
Do amblyopes demonstrate general irregularities in processes of global image integration? Or are these anomalies stimulus specific? To address these questions we employed directly analogous global-orientation and global-motion stimuli using a method that allows us to factor out any influence of the low-level visibility loss [Simmers, A. J., Ledgeway, T., Hess, R. F., & McGraw, P. V. (2003). Deficits to global motion processing in human amblyopia. Vision Research 43, pp. 729-738]. The combination of orientation and motion coherence thresholds reported here provides comparable psychophysical measures of global processing by spatial-sensitive and motion-sensitive mechanisms in the amblyopic visual system. The results show deficits in both global-orientation and global-motion processing in amblyopia, which appear independent of any low-level visibility loss, but with the most severe deficit affecting the extraction of global motion. This provides evidence for the existence of a dominant temporal processing deficit in amblyopia.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vision Research - Volume 45, Issue 4, February 2005, Pages 449-460
نویسندگان
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