کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4034965 | 1263495 | 2009 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The effect of aging on the orientational selectivity of the human visual system
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
سیستم های حسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Leventhal et al. (Science, 2003, 300(5620), 812–815) reported that orientation selectivity of V1 neurons was significantly reduced in older macaque monkeys, which suggests that mechanisms that encode orientation in humans may become more broadly tuned in old age. We examined this hypothesis in two experiments that used sine-wave masking and notched-noise masking to estimate the bandwidth of orientation-selective mechanisms in younger (age ≈ 23 years) and older (age ≈ 68 years) human adults. In both experiments, the orientation selectivity of masking was essentially identical in younger and older subjects.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vision Research - Volume 49, Issue 1, January 2009, Pages 164–172
Journal: Vision Research - Volume 49, Issue 1, January 2009, Pages 164–172
نویسندگان
Stanley W. Govenlock, Christopher P. Taylor, Allison B. Sekuler, Patrick J. Bennett,