کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4035332 1263519 2008 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Pupillary correlates of light-evoked melanopsin activity in humans
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی سیستم های حسی
پیش نمایش صفحه اول مقاله
Pupillary correlates of light-evoked melanopsin activity in humans
چکیده انگلیسی

We investigated whether cones are the only photosensitive process mediating the photopic pupillary light reflex. New analyses were performed on previously published recordings, focusing on those evoked by the onset of photopically equated short- and long-wavelength stimuli. Comparisons between responses revealed contraction differences that slowly grew to a peak and gradually declined. The late contraction was associated with short wavelengths and appeared mostly at the higher stimulus intensities. We conclude that cones are not the only photoreception process mediating the photopic ON-reflex and infer that melanopsin is another. Melanopsin contributes to the steady-state pupil size in daylight illumination.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vision Research - Volume 48, Issue 7, March 2008, Pages 862–871
نویسندگان
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