Presentation 2015-06-24
Spatial structures of neuronal synchronization in the cat area 17 and 18
Hiroki Tanaka, Hiroshi Tamura, Izumi Ohzawa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Neuronal correlation occurs in various time-scales. In particular, there are correlations of a time-scale of milliseconds (precise correlation) and correlations of a time-scale of tens of milliseconds (loose correlation). To understand the roles and mechanisms of these correlations, we have recently studied the spatial range in which these correlations were observed and how it was related to the laminar structure and receptive field properties (Tanaka et al. 2014). In this technical report, we describe the details of the methods and briefly describe the results. We penetrated multi-electrode arrays into cat V1 and conducted simultaneous recordings of neuronal activities within a vertical range of 1.4 mm and horizontal range of 1.2 mm. We used flash grating stimuli to efficiently measure receptive field properties of all recorded cells and correlation of neuronal pairs. By using a median filter, we separately analyze loose and precise components of correlations. Our results implicate that the two types of correlations have different functional roles and neuronal mechanisms.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) neuronal correlation / synchronization / visual cortex / laminar structure / cross-correlogram
Paper # NC2015-1
Date of Issue 2015-06-17 (NC)

Conference Information
Committee NC / IPSJ-BIO / IBISML / IPSJ-MPS
Conference Date 2015/6/23(3days)
Place (in Japanese) (See Japanese page)
Place (in English) Okinawa Institute of Science and Technology
Topics (in Japanese) (See Japanese page)
Topics (in English) Machine Learning Approach to Biodata Mining, and General
Chair Toshimichi Saito(Hosei Univ.) / Masakazu Sekijima(東工大) / Takashi Washio(Osaka Univ.) / Hayaru Shouno(電通大)
Vice Chair Shigeo Sato(Tohoku Univ.) / / Kenji Fukumizu(ISM) / Masashi Sugiyama(Tokyo Inst. of Tech.)
Secretary Shigeo Sato(Kyushu Inst. of Tech.) / (Kyoto Sangyo Univ.) / Kenji Fukumizu(京大) / Masashi Sugiyama(お茶の水女子大) / (OIST)
Assistant Hiroyuki Kanbara(Tokyo Inst. of Tech.) / Hisanao Akima(Tohoku Univ.) / / Koji Tsuda(Univ. of Tokyo) / Hisashi Kashima(Kyoto Univ.)

Paper Information
Registration To Technical Committee on Neurocomputing / Special Interest Group on Bioinformatics and Genomics / Technical Committee on Infomation-Based Induction Sciences and Machine Learning / Special Interest Group on Mathematical Modeling and Problem Solving
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Spatial structures of neuronal synchronization in the cat area 17 and 18
Sub Title (in English)
Keyword(1) neuronal correlation
Keyword(2) synchronization
Keyword(3) visual cortex
Keyword(4) laminar structure
Keyword(5) cross-correlogram
1st Author's Name Hiroki Tanaka
1st Author's Affiliation Kyoto Sangyo University(Kyoto Sangyo Univ.)
2nd Author's Name Hiroshi Tamura
2nd Author's Affiliation Osaka University(Osaka Univ)
3rd Author's Name Izumi Ohzawa
3rd Author's Affiliation Osaka University(Osaka Univ)
Date 2015-06-24
Paper # NC2015-1
Volume (vol) vol.115
Number (no) NC-111
Page pp.pp.21-26(NC),
#Pages 6
Date of Issue 2015-06-17 (NC)