東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

System identification analysis of ne...

Nakama, Takehiko.

Linked to FindBook

Google Book

Amazon

博客來

System identification analysis of neuronal responses to bimanual stimulation in the second somatosensory cortex.

Record Type:	Electronic resources : Monograph/item
Title/Author:	System identification analysis of neuronal responses to bimanual stimulation in the second somatosensory cortex./
Author:	Nakama, Takehiko.
Description:	172 p.
Notes:	Source: Dissertation Abstracts International, Volume: 64-10, Section: B, page: 4797.
Contained By:	Dissertation Abstracts International64-10B.
Subject:	Biology, Neuroscience. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3107548

System identification analysis of neuronal responses to bimanual stimulation in the second somatosensory cortex.
Nakama, Takehiko.

System identification analysis of neuronal responses to bimanual stimulation in the second somatosensory cortex. - 172 p.

Source: Dissertation Abstracts International, Volume: 64-10, Section: B, page: 4797.

Thesis (Ph.D.)--The Johns Hopkins University, 2004.

I conducted system identification analysis of neuronal responses to bimanual stimulation in the second somatosensory cortex (SII) in order to examine each SII neuron as an information processing device and identify it structurally and functionally. Oriented bars stimulated the distal pads of digits 2, 3, and 4 on each hand, and neuronal activity in SII responding to the tactile stimulation was monitored via single-unit recording. Regression analysis was conducted to investigate SII neurons' receptive field structures and bimanual responsiveness, and information theoretic analysis was performed to quantify SII neurons' ipsilateral and contralateral information processing. I also examined orientation selectivity of SII neurons and the attentional modulation of neuronal activity for orientation discrimination in SII.Subjects--Topical Terms:

1017680
Biology, Neuroscience.

System identification analysis of neuronal responses to bimanual stimulation in the second somatosensory cortex.
LDR:03362nmm 2200301 4500 001 1864960
005 20041216133906.5
008 130614s2004 eng d
035 $a (UnM)AAI3107548
035 $a AAI3107548
040 $a UnM $c UnM
100 1 $a Nakama, Takehiko. $3 1952424
245 1 0 $a System identification analysis of neuronal responses to bimanual stimulation in the second somatosensory cortex.
300 $a 172 p.
500 $a Source: Dissertation Abstracts International, Volume: 64-10, Section: B, page: 4797.
500 $a Adviser: Steven Yantis.
502 $a Thesis (Ph.D.)--The Johns Hopkins University, 2004.
520 $a I conducted system identification analysis of neuronal responses to bimanual stimulation in the second somatosensory cortex (SII) in order to examine each SII neuron as an information processing device and identify it structurally and functionally. Oriented bars stimulated the distal pads of digits 2, 3, and 4 on each hand, and neuronal activity in SII responding to the tactile stimulation was monitored via single-unit recording. Regression analysis was conducted to investigate SII neurons' receptive field structures and bimanual responsiveness, and information theoretic analysis was performed to quantify SII neurons' ipsilateral and contralateral information processing. I also examined orientation selectivity of SII neurons and the attentional modulation of neuronal activity for orientation discrimination in SII.
520 $a Most SII neurons were significantly responsive to both ipsilateral and contralateral stimulation, and exhibited a continuum of bimanual responsiveness and a variety of receptive field structures. SII neurons generally showed high degrees of linearity in their responses to bimanual stimulation, but interactions between inputs from multiple digits contributed significantly to the response variability attributable to tactile stimulation for a subpopulation of SII neurons. A majority of SII neurons processed information about both ipsilateral and contralateral stimulation although they processed more information about contralateral stimulation. They showed stronger orientation selectivity for contralateral stimulation than for ipsilateral stimulation while exhibiting similar orientation tuning on both hands. SII neurons' bimanual responsiveness and information processing were substantially affected by the behavioral state of the animal, and neuronal discriminability between two orientations in SII was significantly enhanced when tactile bars were attentively processed for orientation discrimination.
520 $a The studies described in this thesis thus demonstrate that SII neurons process information about both ipsilateral and contralateral stimulation with dynamical bimanual responsiveness that reflects the attentional state of the animal. The results of the studies suggest that SII constitutes an important cortical area in the main somatosensory pathway for object recognition where neurons construct feature-based, non-isomorphic representations that reflect behavioral goals.
590 $a School code: 0098.
650 4 $a Biology, Neuroscience. $3 1017680
650 4 $a Engineering, Biomedical. $3 1017684
650 4 $a Engineering, System Science. $3 1018128
690 $a 0317
690 $a 0541
690 $a 0790
710 2 0 $a The Johns Hopkins University. $3 1017431
773 0 $t Dissertation Abstracts International $g 64-10B.
790 1 0 $a Yantis, Steven, $e advisor
790 $a 0098
791 $a Ph.D.
792 $a 2004
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3107548