Cortical field potentials preceding vocalization and influences of cerebellar hemispherectomy upon them in monkeys

Brain Research
H GembaK Sasaki

Abstract

Field potentials preceding vocalization were recorded with electrodes chronically implanted on the surface and at 2.0-3.0 mm depth in various cortical areas in three monkeys. Surface-negative, depth-positive (s-N, d-P) slow potentials prior to vocalization were recorded in the premotor (including the Broca's homology), motor and somatosensory cortices in both hemispheres, and the supplementary motor area in the cerebral hemisphere. Such premovement potentials were recorded also in the cingulate and prefrontal cortices when a monkey uttered with intense motivation for reward. Cerebellar hemispherectomy on the right side eliminated the s-N, d-P premovement potentials in the motor cortex and in the posterior bank of inferior limb of the arcuate sulcus (homolog of Broca's area) in the left hemisphere. Vocal tone contained less components in different frequencies, and its duration became more variable than before the operation. These facts suggest that the neocortical area homologous to the human speech area takes part in generation and control of monkey vocalization together with the cerebellum, possibly through cerebro-cerebellar interactions, against ideas so far offered on nonhuman primate vocalization.

Citations

Oct 27, 2016·Developmental Neurobiology·Steven J Eliades, Cory T Miller
Jun 30, 2019·Biological Reviews of the Cambridge Philosophical Society·Marlen FröhlichCarel P van Schaik
Mar 4, 2003·Journal of Neurophysiology·Steven J Eliades, Xiaoqin Wang
Mar 31, 2005·The Japanese Journal of Physiology·Tomomi SekiKazuko Nakao
Oct 23, 2013·PloS One·Anne Marijke SchelKatie E Slocombe
Dec 21, 2018·The Laryngoscope·Molly L NaunheimSteven W Cheung
Jan 1, 1997·Acta Oto-laryngologica. Supplementum·H GembaK Sasaki
Jul 25, 2006·Nature Neuroscience·Ricardo Gil-da-CostaAllen R Braun
Jul 22, 2008·Nature Reviews. Neuroscience·Trinity B Crapse, Marc A Sommer
Dec 21, 2016·Neuroscience and Biobehavioral Reviews·Thibaud Gruber, Didier Grandjean
Feb 22, 2002·Neuroscience and Biobehavioral Reviews·Uwe Jürgens

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