Fear and safety engage competing patterns of theta-gamma coupling in the basolateral amygdala.
Fear and safety engage competing patterns of theta-gamma coupling in the basolateral amygdala.
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DOI:
10.1016/j.neuron.2014.07.026
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发表时间:
2014-08-20
期刊:
影响因子:
16.2
通讯作者:
Gordon JA
中科院分区:
文献类型:
--
作者:
Stujenske JM;Likhtik E;Topiwala MA;Gordon JA
Theta oscillations synchronize the basolateral amygdala (BLA) with the hippocampus (HPC) and medial prefrontal cortex (mPFC) during fear expression. The role of gamma-frequency oscillations in the BLA is less well characterized. We examined gamma- and theta-frequency activity in recordings of neural activity from the BLA-HPC-mPFC circuit during fear conditioning, extinction, and exposure to an open field. In the BLA, slow (40-70 Hz) and fast (70-120 Hz) gamma oscillations were coupled to distinct phases of the theta cycle and reflected synchronous high frequency unit activity. During periods of fear, BLA theta-fast gamma coupling was enhanced, while fast gamma power was suppressed. Periods of relative safety were associated with enhanced BLA fast gamma power, mPFC-to-BLA directionality, and strong coupling of BLA gamma to mPFC theta. These findings suggest that switches between states of fear and safety are mediated by changes in BLA gamma coupling to competitive theta frequency inputs.
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影响因子:
25
作者:
Likhtik, Ekaterina;Stujenske, Joseph M.;Topiwala, Mihir A.;Harris, Alexander Z.;Gordon, Joshua A.
通讯作者:
Gordon, Joshua A.
影响因子:
13.9
作者:
Buzsáki G;Wang XJ
通讯作者:
Wang XJ
影响因子:
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作者:
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通讯作者:
Kalisch, Raffael
影响因子:
5.3
作者:
Genud-Gabai, Rotem;Klavir, Oded;Paz, Rony
通讯作者:
Paz, Rony
DOI:
10.1073/pnas.0609440103
发表时间:
2006-12-26
影响因子:
11.1
作者:
Cho, R. Y.;Konecky, R. O.;Carter, C. S.
通讯作者:
Carter, C. S.