RRC ID 36440
著者 Hihara S, Taoka M, Tanaka M, Iriki A.
タイトル Visual Responsiveness of Neurons in the Secondary Somatosensory Area and its Surrounding Parietal Operculum Regions in Awake Macaque Monkeys.
ジャーナル Cereb Cortex
Abstract Previous neurophysiological studies performed in macaque monkeys have shown that the secondary somatosensory cortex (SII) is essentially engaged in the processing of somatosensory information and no other sensory input has been reported. In contrast, recent human brain-imaging studies have revealed the effects of visual and auditory stimuli on SII activity, which suggest multisensory integration in the human SII. To determine whether multisensory responses of the SII also exist in nonhuman primates, we recorded single-unit activity in response to visual and auditory stimuli from the SII and surrounding regions in 8 hemispheres from 6 awake monkeys. Among 1157 recorded neurons, 306 neurons responded to visual stimuli. These visual neurons usually responded to rather complex stimuli, such as stimulation of the peripersonal space (40.5%), observation of human action (29.1%), and moving-object stimulation outside the monkey's reach (23.9%). We occasionally applied auditory stimuli to visual neurons and found 10 auditory-responsive neurons that exhibited somatosensory responses. The visual neurons were distributed continuously along the lateral sulcus covering the entire SII, along with other somatosensory neurons. These results highlight the need to investigate novel functional roles-other than somesthetic sensory processing-of the SII.
巻・号 25(11)
ページ 4535-50
公開日 2015-11-1
DOI 10.1093/cercor/bhv095
PII bhv095
PMID 25962920
PMC PMC4816798
MeSH Acoustic Stimulation Action Potentials / physiology* Animals Female Forelimb / physiology Functional Laterality Humans Macaca fascicularis Male Motion Perception / physiology Nerve Net / physiology* Neurons / classification Neurons / physiology* Photic Stimulation Psychomotor Performance / physiology Somatosensory Cortex / cytology* Wakefulness / physiology*
IF 5.043
引用数 20
WOS 分野 NEUROSCIENCES
リソース情報
ニホンザル