Neural representations of events arise from temporal community structure.
Neural representations of events arise from temporal community structure.
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DOI:
10.1038/nn.3331
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发表时间:
2013-04
影响因子:
25
通讯作者:
Botvinick, Matthew M.
中科院分区:
文献类型:
--
作者:
Schapiro, Anna C.;Rogers, Timothy T.;Cordova, Natalia I.;Turk-Browne, Nicholas B.;Botvinick, Matthew M.
Our experience of the world seems to divide naturally into discrete, temporally extended events, yet the mechanisms underlying the learning and identification of events are poorly understood. Research on event perception has focused on transient elevations in predictive uncertainty or surprise as the primary signal driving event segmentation. We present human behavioral and functional magnetic resonance imaging (fMRI) evidence in favor of a different account, in which event representations coalesce around clusters or ‘communities’ of mutually predicting stimuli. Through parsing behavior, fMRI adaptation and multivoxel pattern analysis, we demonstrate the emergence of event representations in a domain containing such community structure, but in which transition probabilities (the basis of uncertainty and surprise) are uniform. We present a computational account of how the relevant representations might arise, proposing a direct connection between event learning and the learning of semantic categories.
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影响因子:
1.7
作者:
Krueger F;Spampinato MV;Barbey AK;Huey ED;Morland T;Grafman J
通讯作者:
Grafman J
DOI:
10.1523/jneurosci.2668-09.2009
发表时间:
2009-08-12
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
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通讯作者:
Frith CD
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3
作者:
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通讯作者:
Jagadisan UK
影响因子:
16.2
作者:
Gelfand, JR;Bookheimer, SY
通讯作者:
Bookheimer, SY
影响因子:
5.7
作者:
Bornkessel, I;Zysset, S;Schlesewsky, M
通讯作者:
Schlesewsky, M