Striatal Low-Threshold Spiking Interneurons Regulate Goal-Directed Learning.
Striatal Low-Threshold Spiking Interneurons Regulate Goal-Directed Learning.
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DOI:
10.1016/j.neuron.2019.04.016
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发表时间:
2019-07-03
期刊:
影响因子:
16.2
通讯作者:
Fuccillo MV
中科院分区:
文献类型:
--
作者:
Holly EN;Davatolhagh MF;Choi K;Alabi OO;Vargas Cifuentes L;Fuccillo MV
The dorsomedial striatum (DMS) is critically involved in motor control and reward processing, but the specific neural circuit mediators are poorly understood. Recent evidence highlights the extensive connectivity of low-threshold spiking interneurons (LTSIs) within local striatal circuitry; however, the in vivo function of LTSIs remains largely unexplored. We employed fiber photometry to assess LTSI calcium activity in a range of DMS-mediated behaviors, uncovering specific reward-related activity that is down-modulated during goal-directed learning. Using two mechanistically distinct manipulations, we demonstrated that this down-modulation of LTSI activity is critical for acquisition of novel contingencies, but not for their modification. In contrast, continued LTSI activation slowed instrumental learning. Similar manipulations of fast-spiking interneurons did not reproduce these effects, implying a specific function of LTSIs. Finally, we revealed a role for the γ-aminobutyric acid (GABA)ergic functions of LTSIs in learning. Together, our data provide new insights into this striatal interneuron subclass as important gatekeepers of goal-directed learning. The functional role of dorsomedial striatum low-threshold spiking interneurons (LTSIs) in behavior has been largely unexplored. Holly et al. show that LTSIs have reward outcome-associated activity that decreases with and causally modulates goal-directed learning.
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DOI:
10.1523/jneurosci.0363-11.2011
发表时间:
2011-05-18
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Groman SM;Lee B;London ED;Mandelkern MA;James AS;Feiler K;Rivera R;Dahlbom M;Sossi V;Vandervoort E;Jentsch JD
通讯作者:
Jentsch JD
影响因子:
64.8
作者:
通讯作者:
--
影响因子:
25
作者:
Khan AG;Poort J;Chadwick A;Blot A;Sahani M;Mrsic-Flogel TD;Hofer SB
通讯作者:
Hofer SB
影响因子:
64.8
作者:
Cui, Guohong;Jun, Sang Beom;Jin, Xin;Pham, Michael D.;Vogel, Steven S.;Lovinger, David M.;Costa, Rui M.
通讯作者:
Costa, Rui M.
影响因子:
4.4
作者:
Gisselle Lopez-Huerta, Violeta;Tecuapetla, Fatuel;Galarraga, Elvira
通讯作者:
Galarraga, Elvira