Processing Efficiency of Divided Spatial Attention Mechanisms in Human Visual Cortex
نویسندگان
چکیده
منابع مشابه
Processing efficiency of divided spatial attention mechanisms in human visual cortex.
Many visual tasks require deployment of attention to multiple objects or locations. We used functional magnetic resonance imaging and behavioral experiments to investigate the relative processing efficiency of two putative attentional mechanisms for performing such tasks: the "zoom lens" and "multiple spotlights." Two key questions were investigated: (1) does splitting the spotlight into multip...
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Functional MRI was used to test whether instructing subjects to attend to one or another location in a visual scene would affect neural activity in human primary visual cortex. Stimuli were moving gratings restricted to a pair of peripheral, circular apertures, positioned to the right and to the left of a central fixation point. Subjects were trained to perform a motion discrimination task, att...
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ژورنال
عنوان ژورنال: Journal of Neuroscience
سال: 2005
ISSN: 0270-6474,1529-2401
DOI: 10.1523/jneurosci.2647-05.2005