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Dynamic neural architecture for social knowledge retrieval.

Abstract：

:Social behavior is often shaped by the rich storehouse of biographical information that we hold for other people. In our daily life, we rapidly and flexibly retrieve a host of biographical details about individuals in our social network, which often guide our decisions as we navigate complex social interactions. Even abstract traits associated with an individual, such as their political affiliation, can cue a rich cascade of person-specific knowledge. Here, we asked whether the anterior temporal lobe (ATL) serves as a hub for a distributed neural circuit that represents person knowledge. Fifty participants across two studies learned biographical information about fictitious people in a 2-d training paradigm. On day 3, they retrieved this biographical information while undergoing an fMRI scan. A series of multivariate and connectivity analyses suggest that the ATL stores abstract person identity representations. Moreover, this region coordinates interactions with a distributed network to support the flexible retrieval of person attributes. Together, our results suggest that the ATL is a central hub for representing and retrieving person knowledge.

journal_name

Proc Natl Acad Sci U S A

journal_title

Proceedings of the National Academy of Sciences of the United States of America

authors

Wang Y,Collins JA,Koski J,Nugiel T,Metoki A,Olson IR

doi

10.1073/pnas.1621234114

subject

Has Abstract

pub_date

2017-04-18 00:00:00

pages

E3305-E3314

issue

16

eissn

0027-8424

issn

1091-6490

pii

1621234114

journal_volume

114

pub_type

杂志文章

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