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Entrained neuronal activity to periodic visual stimuli in the primate striatum compared with the cerebellum

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Title: Entrained neuronal activity to periodic visual stimuli in the primate striatum compared with the cerebellum
Authors: Kameda, Masashi Browse this author
Ohmae, Shogo Browse this author
Tanaka, Masaki Browse this author →KAKEN DB
Issue Date: 6-Sep-2019
Publisher: eLife Sciences Publications
Journal Title: Elife
Volume: 8
Start Page: e48702
Publisher DOI: 10.7554/eLife.48702
Abstract: Rhythmic events recruit neuronal activity in the basal ganglia and cerebellum, but their roles remain elusive. In monkeys attempting to detect a single omission of isochronous visual stimulus, we found that neurons in the caudate nucleus showed increased activity for each stimulus in sequence, while those in the cerebellar dentate nucleus showed decreased activity. Firing modulation in the majority of caudate neurons and all cerebellar neurons was proportional to the stimulus interval, but a quarter of caudate neurons displayed a clear duration tuning. Furthermore, the time course of population activity in the cerebellum well predicted stimulus timing, whereas that in the caudate reflected stochastic variation of response latency. Electrical stimulation to the respective recording sites confirmed a causal role in the detection of stimulus omission. These results suggest that striatal neurons might represent periodic response preparation while cerebellar nuclear neurons may play a role in temporal prediction of periodic events.
Type: article
Appears in Collections:医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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