Neural Anatomy of Primary Visual Cortex Limits Visual Working Memory
نویسندگان
چکیده
منابع مشابه
Neural Anatomy of Primary Visual Cortex Limits Visual Working Memory.
Despite the immense processing power of the human brain, working memory storage is severely limited, and the neuroanatomical basis of these limitations has remained elusive. Here, we show that the stable storage limits of visual working memory for over 9 s are bound by the precise gray matter volume of primary visual cortex (V1), defined by fMRI retinotopic mapping. Individuals with a bigger V1...
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T he primary visual cortex is the first cortical area of the visual system that receives information from the external visual world. Neurons in the primary visual cortex have small receptive fields and respond to basic elements of the visual scene. Recent findings, however, show that the primary visual cortex is also involved in cognitive processes, such as visual perception and working memory....
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When stimuli compete for sensory processing and response selection, coherent goal-guided behavior requires cognitive control so that task-relevant "targets" rather than irrelevant distractors are selected. It has been shown that reduced cognitive control under high working memory load increases distractor competition for selection. It remains unknown, though, whether cognitive control by workin...
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The amount of information we can actively maintain 'in mind' is very limited. This capacity limitation, known as working memory (WM) capacity, has been of great interest because of its wide scope influence on the variety of intellectual abilities. Recently, there has been an ongoing debate about how this capacity should be best characterized. One viewpoint argues that WM capacity is allocated i...
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ژورنال
عنوان ژورنال: Cerebral Cortex
سال: 2014
ISSN: 1047-3211,1460-2199
DOI: 10.1093/cercor/bhu168