کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4035543 1263533 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Genetic influence on contrast sensitivity in middle-aged male twins
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی سیستم های حسی
پیش نمایش صفحه اول مقاله
Genetic influence on contrast sensitivity in middle-aged male twins
چکیده انگلیسی

Contrast sensitivity is strongly associated with daily functioning among older adults, but the genetic and environmental contributions to this ability are unknown. Using the classical twin method, we addressed this issue by examining contrast sensitivity at five spatial frequencies (1.5–18 cycles per degree) in 718 middle-aged male twins from the Vietnam Era Twin Study of Aging (VETSA). Heritability estimates were modest (14–38%), whereas individual-specific environmental influences accounted for 62–86% of the variance. Identifying the types of individual-specific events that impact contrast sensitivity may suggest interventions to modulate this ability and thereby improve overall quality of life as adults age.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vision Research - Volume 47, Issue 16, July 2007, Pages 2179–2186
نویسندگان
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