Abstract:
:The basolateral amygdala (BLA) plays a vital role in associating sensory stimuli with salient valence information. Excitatory principal neurons (PNs) undergo plastic changes to encode this association; however, local BLA inhibitory interneurons (INs) gate PN plasticity via feedforward inhibition (FFI). Despite literature implicating parvalbumin expressing (PV+) INs in FFI in cortex and hippocampus, prior anatomical experiments in BLA implicate somatostatin expressing (Sst+) INs. The lateral entorhinal cortex (LEC) projects to BLA where it drives FFI. In the present study, we explored the role of interneurons in this circuit. Using mice, we combined patch clamp electrophysiology, chemogenetics, unsupervised cluster analysis, and predictive modeling and found that a previously unreported subpopulation of fast-spiking Sst+ INs mediate LEC→BLA FFI.
journal_name
Elifejournal_title
eLifeauthors
Guthman EM,Garcia JD,Ma M,Chu P,Baca SM,Smith KR,Restrepo D,Huntsman MMdoi
10.7554/eLife.50601subject
Has Abstractpub_date
2020-01-09 00:00:00issn
2050-084Xpii
50601journal_volume
9pub_type
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