The Temporal Dynamics of Spontaneous Emotional Brain States and Their Implications for Mental Health.
The Temporal Dynamics of Spontaneous Emotional Brain States and Their Implications for Mental Health.
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DOI:
10.1162/jocn_a_01787
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发表时间:
2022-03-31
影响因子:
3.2
通讯作者:
LaBar, Kevin S.
中科院分区:
文献类型:
--
作者:
Kragel, Philip A.;Hariri, Ahmad R.;LaBar, Kevin S.
Temporal processes play an important role in elaborating and regulating emotional responding during routine mind wandering. However, it is unknown whether the human brain reliably transitions among multiple emotional states at rest, and how psychopathology alters these affect dynamics. Here we combined pattern classification and stochastic process modeling to investigate the chronometry of spontaneous brain activity indicative of six emotions (anger, contentment, fear, happiness, sadness, surprise) and a neutral state. We modeled the dynamic emergence of these brain states during resting-state functional magnetic resonance imaging and validated the results across two population cohorts – the Duke Neurogenetics Study and the Nathan Kline Institute Rockland Sample. Our findings indicate that intrinsic emotional brain dynamics are effectively characterized as a discrete time Markov process, with affective states organized around a neutral hub. The centrality of this network hub is disrupted in individuals with psychopathology, whose brain state transitions exhibit greater inertia and less frequent resetting from emotional to neutral states. These results yield novel insights into how the brain signals spontaneous emotions and how alterations in their temporal dynamics contribute to compromised mental health.
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DOI:
10.1073/pnas.1702247114
发表时间:
2017-09-19
影响因子:
11.1
作者:
Cowen, Alan S.;Keltner, Dacher
通讯作者:
Keltner, Dacher
影响因子:
4.6
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通讯作者:
Barrett LF
影响因子:
4.2
作者:
Barrett LF
通讯作者:
Barrett LF
影响因子:
5.4
作者:
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通讯作者:
Cordaro, Daniel
影响因子:
9.8
作者:
Kragel, Philip A.;Knodt, Annchen R.;LaBar, Kevin S.
通讯作者:
LaBar, Kevin S.