Inter-limb coupling of proximal and distal hand actions

Show full item record



Vainio , L & Tiainen , M 2018 , ' Inter-limb coupling of proximal and distal hand actions ' , Experimental Brain Research , vol. 236 , no. 1 , pp. 153-160 .

Title: Inter-limb coupling of proximal and distal hand actions
Author: Vainio, Lari; Tiainen, Mikko
Contributor organization: Medicum
Perception Action Cognition
Department of Psychology and Logopedics
Phonetics and Speech Synthesis
Date: 2018-01
Language: eng
Number of pages: 8
Belongs to series: Experimental Brain Research
ISSN: 0014-4819
Abstract: Past studies have revealed connections in directional programming between hands. The present study investigated whether there could also be interaction in programming proximal and distal components of a prehensile hand action. In Experiment 1, the participants performed simultaneously either a push or pull response with the left hand and the grip closure or opening with the right hand. In Experiment 2, the push and pull responses of the left hand were performed together with the precision or power grip responses of the right hand. The participants showed preference, measured in reaction times, to couple the push response with the grip opening and the precision grip, whereas the pull response was associated with the grip closure and the power grip. The study shows for the first time a systematic interaction in proximal and distal prehensile components between two hands. We propose that these effects reflect inter- and intra-limb connections between the representations that prepare the arm extension for the outward reaching, the finger extension for the grip opening, and the motor processes that prepare the precision grip. Conversely, there appear to be connections between the representations that prepare the arm flexion for the inward directed hand movements, the flexion of the thumb and the fingers for the grip closure, and flexion of four fingers for the power grip.
Subject: Action planning
Interlimb connections
Behavioural study
Reaction time
515 Psychology
Peer reviewed: Yes
Usage restriction: openAccess
Self-archived version: acceptedVersion

Files in this item

Total number of downloads: Loading...

Files Size Format View
Vainio_Tiainen_ ... nd_distal_hand_actions.pdf 251.1Kb PDF View/Open

This item appears in the following Collection(s)

Show full item record