How The Brain Pays Attention To Others' Attention
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA(2020)
摘要
Humans and other primates have evolved skills to interpret and respond to highly complex social information. This ability is reflected in multiple cortical regions of the macaque brain devoted to the visual analysis of individuals (1, 2), actions (3, 4), and scenes (5). Beyond visual analysis, social perception engages brain areas that govern an observer\u0027s strategic examination of stimuli (6), for example directing attention to scene elements with the most relevant social information. Consider a monkey sneaking a cautious glance at a gathering of other monkeys (Fig. 1 A ). There exists information about many social variables: who is there, how they are feeling, why they are gathered, and what might happen next, to name a few. One\u0027s capacity to retrieve information is limited, and an observer must prioritize information that is of immediate relevance. How does the brain implement the selective attention to pertinent social information? An important clue comes from a recent electrophysiological study by Ramezanpour and Thier (7), who discovered that neurons in a specialized region of the macaque cerebral cortex become much more sensitive to the gaze direction of an observed face when the subject actively seeks that information.\n\n\n\nFig. 1. \n( A ) Natural scene of interacting baboons. Image courtesy of Pier Francesco Ferrari (photographer). ( B ) Description of the two tasks used by Ramezanpour and Thier. In both tasks, a macaque face was presented on the screen and four dots … \n\n\n\n[↵][1]1To whom correspondence may be addressed. Email: leopoldd{at}mail.nih.gov.\n\n [1]: #xref-corresp-1-1
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