کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4034240 1263438 2011 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Attention modulates spatio-temporal grouping
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی سیستم های حسی
پیش نمایش صفحه اول مقاله
Attention modulates spatio-temporal grouping
چکیده انگلیسی

Dynamic stimuli are ubiquitous in natural viewing conditions implying that grouping operations need to operate, not only in space, but also jointly in space and time. Moreover, in natural viewing, attention plays an important role in controlling how resources are allocated. We investigated how attention interacts with spatio-temporal perceptual grouping by using a bistable stimulus, called the Ternus–Pikler display. Ternus–Pikler displays can give rise to two different motion percepts, called Element Motion (EM) and Group Motion (GM), the former dominating at short Inter-Stimulus Intervals (ISIs) and the latter at long ISIs. Our results indicate that GM grouping requires more attentional resources than EM grouping. Different theoretical accounts of perceptual grouping and attention are discussed and evaluated in the light of the current results.

Research highlights
► Attention modulates the balance between competing spatiotemporal groupings.
► Group-motion requires more attentional resources than element-motion.
► Attention and grouping are distinct but functionally interdependent processes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vision Research - Volume 51, Issue 4, 23 February 2011, Pages 435–446
نویسندگان
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