Action Selection and Flexible Switching Controlled by the Intralaminar Thalamic Neurons
Male
Neurons
0301 basic medicine
Behavior, Animal
QH301-705.5
Intralaminar Thalamic Nuclei
Green Fluorescent Proteins
Action Potentials
Receptors, Interleukin-2
Motor Activity
Mice, Inbred C57BL
03 medical and health sciences
Memory, Short-Term
Motor Skills
Animals
Transgenes
Biology (General)
DOI:
10.1016/j.celrep.2018.02.016
Publication Date:
2018-02-27T16:39:49Z
AUTHORS (11)
ABSTRACT
Learning processes contributing to appropriate selection and flexible switching of behaviors are mediated through the dorsal striatum, a key structure of the basal ganglia circuit. The major inputs to striatal subdivisions are provided from the intralaminar thalamic nuclei, including the central lateral nucleus (CL) and parafascicular nucleus (PF). Thalamostriatal neurons in the PF modulate the acquisition and performance of stimulus-response learning. Here, we address the roles of the CL thalamostriatal neurons in learning processes by using a selective neural pathway targeting technique. We show that the CL neurons are essential for the performance of stimulus-response learning and for behavioral flexibility, including reversal and attentional set-shifting of learned responses. In addition, chemogenetic suppression of neural activity supports the requirements of these neurons for behavioral flexibility. Our results suggest that the main contribution of the CL thalamostriatal neurons is functional control of the basal ganglia circuit linked to the prefrontal cortex.
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