作者
Jordan Lass, Patrick Bennett, Mary Peterson, Allison Sekuler
发表日期
2016/8/31
期刊
Journal of Vision
卷号
16
期号
12
页码范围
302-302
出版商
The Association for Research in Vision and Ophthalmology
简介
Convexity cues bias perceptual organization when observers resolve competing figure-ground (FG) interpretations of a stimulus. Convex regions are increasingly likely to be perceived as figures as the number of alternating, convex and homogeneously-filled concave regions in the surround increases (Peterson & Salvagio, 2008), and this Convexity Context Effect (CCE) is reduced in healthy aging (Lass, et al., 2012; 2013). The age-related CCE reduction has been interpreted as evidence for reduced suppression in seniors. However, CCEs may require inferring depth in the stimulus (Goldreich & Peterson, 2012), so reduced CCEs in aging may result from decreased depth presumption. If so, additional depth cues should increase the CCE in older adults. We tested this hypothesis in 24 younger (M= 20.0, SD= 1.7 years) and 24 older (M= 71.8, SD= 6.1 years) observers using a method that induces depth perception …
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