کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8841239 1614709 2017 26 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Absolute Not Relative Interocular Luminance Modulates Sensory Eye Dominance Plasticity in Adults
ترجمه فارسی عنوان
انسداد مطلق بینایی نور نسبی، پلاستیک گرایش غلظت چشم در بزرگسالان را مدول می کند
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب (عمومی)
چکیده انگلیسی
If one eye is patched for a period of 2.5 h in human adults, transient changes in sensory eye dominance result with the previously patched eye's contribution being strengthened. Similar changes result from opaque and translucent occlusion suggesting that it is the deprivation of contrast not luminance information that drives these transient shift of sensory eye dominance. However, this does not rule out the possibility that luminance deprivation per se cannot produce changes in sensory eye dominance, indeed based on what we know of the physiology, where the contrast gain of visual neurons is luminance dependent, one would expect it should. We show that if the mean luminance of one eye is reduced 1000-fold for a period of 2.5 h, there are subsequent changes in sensory eye dominance. With further control experiments we show that this deprivation effect critically depends on the absolute luminance of each eye rather than the relative interocular luminance imbalance. These results indicate that changes in contrast gain at an early, monocular stage of the pathway can result in the transient shift of sensory eye dominance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience - Volume 367, 26 December 2017, Pages 127-133
نویسندگان
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