Spatio-temporal response properties of local field potentials in the primate superior colliculus

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題名:	Spatio-temporal response properties of local field potentials in the primate superior colliculus
作者:	汪勁安;Ikeda, Takuro;Boehnke, Susan E.;Marino, Robert A.;White, Brian J.;Wang, Chin-An;Levy, Ron;Munoz, Douglas P.
貢獻者:	生醫理工學院認知神經科學研究所
關鍵詞:	Animals;Brain Waves - physiology;eye movements;Macaca mulatta;Male;Neurons - physiology;Psychomotor Performance - physiology;rhesus monkey (Macaca mulatta);saccade;Saccades;single unit activity;Superior Colliculi - physiology;vision;Visual Perception - physiology
日期:	2015-03-01
上傳時間:	2026-04-23 14:38:10 (UTC+8)
出版者:	Wiley-Blackwell Publishing Ltd;France: Blackwell Publishing Ltd
摘要:	摘要： Local field potentials (LFPs) are becoming increasingly popular in neurophysiological studies. However, to date, most of the knowledge about LFPs has been obtained from cortical recordings. Here, we recorded single unit activity (SUA) and LFPs simultaneously from the superior colliculus (SC) of behaving rhesus monkeys. The SC is a midbrain structure that plays a central role in the visual orienting response. Previous studies have characterised the visual and visuomotor response properties of SUA in the superficial layers of the SC and the intermediate layers of the SC, respectively. We found that the signal properties of SUA were well preserved in the LFPs recorded from the SC. The SUA and LFPs had similar spatial and temporal properties, and the response properties of LFPs differed across layers, i.e. purely visual in the superficial layers of the SC but showing significant motor responses in the intermediate layers of the SC. There were also differences between SUA and LFPs. LFPs showed a significant reversal of activity following the phasic visual response, suggesting that the neighboring neurons were suppressed. The results indicate that the LFP can be used as a reliable measure of the SC activity in lieu of SUA, and open up a new way to assess sensorimotor processing within the SC. We recorded single unit activity (SUA) and local field potentials (LFPs) simultaneously from the Superior Colliculus (SC) of behaving non‐human primates. We found that signal properties of SUA (A&B) were well preserved in the LFPs (C&D) spatially (Ordinate) and temporally (Abscissa). On the other hand, LFPs showed significant reversal of activity following the initial phasic visual response, which cannot be observed in SUA, suggesting suppression in the SC. 其他題名： Eur J Neurosci 出版者： France: Blackwell Publishing Ltd 出版日期： 2015-03 出處： The European journal of neuroscience, 2015-03, Vol.41 (6), p.856-865 資源來源： Wiley Online Library All Journals 版權： 2015 Federation of European Neuroscience Societies and John Wiley & Sons Ltd 版權： 2015 Federation of European Neuroscience Societies and John Wiley & Sons Ltd. 識別號： ISSN: 0953-816X 識別號： ISSN: 1460-9568 識別號： EISSN: 1460-9568 識別號： DOI: 10.1111/ejn.12842 識別號： PMID: 25754398
顯示於類別:	[認知與神經科學研究所 ] 期刊論文

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