Presentation 1994/3/25
Corticospinal system for the voluntary movement control
Shoji Tanaka, Masayuki Yuba,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) Caminiti et al.in 1990 reported that the preferred direction of the motor cortical neurons in the monkey shifted with the static arm position.The present theoretical analysis shows that the shift of the preferred direction of both motor cortical neurons and the spinal motor neurons is necessary in order to code the motor command appropriately for various arm positions.Furthermore,the amount of the shift of the preferred direction is estimated from kinematics of a simplified two-joint model arm.The second issue of the present analysis is the corticospinal connectivity:it is shown that the preferred direction of the spinal motor neuron is determined by the corticospinal connectivity and the arm position. Interestingly,the results suggest that only the fundamental Fourier mode of the corticospinal connectivity contributes to the transformation of the motor command.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Motor cortex / Corticospinal tracts / Movement direction / Preferred direction / Population coding
Paper # NC93-140
Date of Issue

Conference Information
Committee NC
Conference Date 1994/3/25(1days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair
Vice Chair
Secretary
Assistant

Paper Information
Registration To Neurocomputing (NC)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Corticospinal system for the voluntary movement control
Sub Title (in English)
Keyword(1) Motor cortex
Keyword(2) Corticospinal tracts
Keyword(3) Movement direction
Keyword(4) Preferred direction
Keyword(5) Population coding
1st Author's Name Shoji Tanaka
1st Author's Affiliation Sophia University()
2nd Author's Name Masayuki Yuba
2nd Author's Affiliation Sophia University
Date 1994/3/25
Paper # NC93-140
Volume (vol) vol.93
Number (no) 537
Page pp.pp.-
#Pages 8
Date of Issue