1/f-type fluctuation in human visuomotor transformation.

Abstract:

:In the absence of vision of the limb, movements toward a visual target exhibit substantial errors which are considered to originate mainly in the visuomotor transformation process. To determine the time-dependent property of human visuomotor transformation, we investigated the error sequences in movements toward visual target using scaling analyses. When subjects could see their controlling limb, the error sequences could not be distinguished from a random sequence. On the other hand, when the controlling limb was invisible, the error sequences were not random in order, but exhibited 1/f-type time correlation. This finding that the variation in human visuomotor transformation shows 1/f-type fluctuation provides a significant index for mathematical modeling and system identification in human visuomotor control.

journal_name

Neuroreport

journal_title

Neuroreport

authors

Miyazaki M,Nakajima Y,Kadota H,Chitose K,Ohtsuki T,Kudo K

doi

10.1097/00001756-200405190-00010

subject

Has Abstract

pub_date

2004-05-19 00:00:00

pages

1133-6

issue

7

eissn

0959-4965

issn

1473-558X

pii

00001756-200405190-00010

journal_volume

15

pub_type

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