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Articles, Behavioral/Cognitive

Encoding by Synchronization in the Primate Striatum

Avital Adler, Inna Finkes, Shiran Katabi, Yifat Prut and Hagai Bergman
Journal of Neuroscience 13 March 2013, 33 (11) 4854-4866; https://doi.org/10.1523/JNEUROSCI.4791-12.2013
Avital Adler
1Department of Medical Neuroscience, Institute of Medical Research Israel-Canada, The Hebrew University Hadassah Medical School, Jerusalem 91120, Israel, and
2The Interdisciplinary Center for Neural Computation and
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Inna Finkes
1Department of Medical Neuroscience, Institute of Medical Research Israel-Canada, The Hebrew University Hadassah Medical School, Jerusalem 91120, Israel, and
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Shiran Katabi
1Department of Medical Neuroscience, Institute of Medical Research Israel-Canada, The Hebrew University Hadassah Medical School, Jerusalem 91120, Israel, and
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Yifat Prut
1Department of Medical Neuroscience, Institute of Medical Research Israel-Canada, The Hebrew University Hadassah Medical School, Jerusalem 91120, Israel, and
2The Interdisciplinary Center for Neural Computation and
3The Edmond and Lily Safra Center for Brain Sciences, The Hebrew University, Jerusalem 91904, Israel
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Hagai Bergman
1Department of Medical Neuroscience, Institute of Medical Research Israel-Canada, The Hebrew University Hadassah Medical School, Jerusalem 91120, Israel, and
2The Interdisciplinary Center for Neural Computation and
3The Edmond and Lily Safra Center for Brain Sciences, The Hebrew University, Jerusalem 91904, Israel
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Abstract

Information is encoded in the nervous system through the discharge and synchronization of single neurons. The striatum, the input stage of the basal ganglia, is divided into three territories: the putamen, the caudate, and the ventral striatum, all of which converge onto the same motor pathway. This parallel organization suggests that there are multiple and competing systems in the basal ganglia network controlling behavior. To explore which mechanism(s) enables the different striatal domains to encode behavioral events and to control behavior, we compared the neural activity of phasically active neurons [medium spiny neurons (MSNs), presumed projection neurons] and tonically active neurons (presumed cholinergic interneurons) across striatal territories from monkeys during the performance of a well practiced task. Although neurons in all striatal territories displayed similar spontaneous discharge properties and similar temporal modulations of their discharge rates to the behavioral events, their correlation structure was profoundly different. The distributions of signal and noise correlation of pairs of putamen MSNs were strongly shifted toward positive correlations and these two measures were correlated. In contrast, MSN pairs in the caudate and ventral striatum displayed symmetrical, near-zero signal and noise correlation distributions. Furthermore, only putamen MSN pairs displayed different noise correlation dynamics to rewarding versus neutral/aversive cues. Similarly, the noise correlation between tonically active neuron pairs was stronger in the putamen than in the caudate. We suggest that the level of synchronization of the neuronal activity and its temporal dynamics differentiate the striatal territories and may thus account for the different roles that striatal domains play in behavioral control.

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The Journal of Neuroscience: 33 (11)
Journal of Neuroscience
Vol. 33, Issue 11
13 Mar 2013
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Encoding by Synchronization in the Primate Striatum
Avital Adler, Inna Finkes, Shiran Katabi, Yifat Prut, Hagai Bergman
Journal of Neuroscience 13 March 2013, 33 (11) 4854-4866; DOI: 10.1523/JNEUROSCI.4791-12.2013

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Encoding by Synchronization in the Primate Striatum
Avital Adler, Inna Finkes, Shiran Katabi, Yifat Prut, Hagai Bergman
Journal of Neuroscience 13 March 2013, 33 (11) 4854-4866; DOI: 10.1523/JNEUROSCI.4791-12.2013
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