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Tytuł pozycji:

Properties of heat-sensitive neurons in the premotor cortex of conscious monkeys.

Tytuł:
Properties of heat-sensitive neurons in the premotor cortex of conscious monkeys.
Autorzy:
Unno S; Department of Oral Physiology, School of Dentistry, Matsumoto Dental University.
Shinoda M; Department of Physiology, Nihon University School of Dentistry.
Soma K; Department of Pediatric Dentistry, Nihon University School of Dentistry.
Kubo A; Department of Physiology, Nihon University School of Dentistry.
Sessle BJ; Faculty of Dentistry and Department of Physiology, Faculty of Medicine, University of Toronto.
Matsui T; Department of Pediatric Dentistry, Nihon University School of Dentistry.
Ando M; Department of Oral and Maxillofacial Surgery, Nihon University School of Dentistry.
Asaka J; Department of Physiology, Nihon University School of Dentistry.
Otsuki K; Department of Physiology, Nihon University School of Dentistry.
Yonemoto H; Department of Physiology, Nihon University School of Dentistry.
Onose H; Department of Physiology, Nihon University School of Dentistry.
Sakanashi K; Department of Physiology, Nihon University School of Dentistry.
Iwata K; Department of Physiology, Nihon University School of Dentistry.
Źródło:
Journal of oral science [J Oral Sci] 2020 Sep 26; Vol. 62 (4), pp. 382-386. Date of Electronic Publication: 2020 Aug 01.
Typ publikacji:
Journal Article
Język:
English
Imprint Name(s):
Original Publication: Tokyo : Nihon University School of Dentistry, c1998-
MeSH Terms:
Motor Cortex*
Animals ; Hot Temperature ; Macaca fascicularis ; Neurons ; Nociceptors
Contributed Indexing:
Keywords: attention; heat-sensitive neuron; monkey; ventral premotor cortex
Entry Date(s):
Date Created: 20200804 Date Completed: 20200929 Latest Revision: 20200929
Update Code:
20240104
DOI:
10.2334/josnusd.19-0512
PMID:
32741851
Czasopismo naukowe
To investigate neuronal activity involved in responses to noxious stimuli in conscious monkeys, the animals were subjected to a task that required them to detect a small change in facial skin temperature or light (second temperature: T2, second light: V2) relative to an initial condition (T1 or V1), and to detect changes in V2 along with a heat task. Recordings were obtained from 57 neurons in the ventral premotor cortex (PMv) during the heat or light detection task. T1 neurons and T2 neurons showed increased activity only during T1 or T2, and T1/T2 neurons were activated by both T1 and T2 stimuli. T1/T2 neurons showed an increase in firing at higher T1 temperatures, whereas T1 neurons did not. About half of the non-light/heat-sensitive T1/T2 neurons showed increased firing at higher T2 temperatures, whereas T2 neurons showed no such increase. The heat responses of heat-sensitive PMv neurons were significantly suppressed when monkeys shifted their attention from heat to light. The present findings suggest that heat-sensitive PMv neurons may be involved in motor responses to noxious heat, whereas light/heat-PMv neurons may be involved in emotional and motivational aspects of pain and inappropriate motor responses to allow escape from noxious stimuli.

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