The influence of joint position on the dynamics of perception-action coupling

R G Carson; Stephan Riek

doi:10.1007/s002210050442

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The influence of joint position on the dynamics of perception-action coupling

Journal article

Peer reviewed

The influence of joint position on the dynamics of perception-action coupling

R G Carson and Stephan Riek

Experimental Brain Research, Vol.121(1), pp.103-114

1998

DOI: https://doi.org/10.1007/s002210050442

PMID: 9698196

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https://doi.org/10.1007/s002210050442View

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Abstract

Wrist - physiology

Movement - physiology

Posture - physiology

Time Factors

Acoustic Stimulation

Humans

Adult

Male

Electromyography

Finger Joint - physiology

Psychomotor Performance - physiology

Six right-handed subjects performed rhythmic flexion and extension movements of the index finger in time with an auditory metronome. On each block of trials, the wrist of the response hand was placed in a extended, neutral or flexed position. In the flex-on-the-beat condition, subjects were instructed to coordinate maximum excursion in the direction of finger flexion with each beat of the metronome. In the extend-on-the-beat condition, subjects were instructed to coordinate maximum excursion in the direction of finger extension with each beat of the metronome. The frequency of the metronome was increased from 2.00 Hz to 3.75 Hz in 8 steps (8 s epochs) of 0.25 Hz. During trials prepared in the extend-on-the-beat pattern, all subjects exhibited transitions to either a flex-on-the-beat pattern or to phase wandering as the frequency of pacing was increased. The time at which these transitions occurred was reliably influenced by the position of the wrist. Four subjects exhibited qualitative departures from the flex-on-the-beat pattern at pacing frequencies that were greater than those at which the extend-on-the-beat pattern could be maintained. The time at which these departures occurred was not influenced by the position of the wrist. These results are discussed with reference to the constraints imposed on the coordination dynamics by the intrinsic properties of the neuromuscular-skeletal system.

Details

Title: The influence of joint position on the dynamics of perception-action coupling
Authors: R G Carson (Author) - University of Queensland
Stephan Riek (Author) - University of Queensland
Publication details: Experimental Brain Research, Vol.121(1), pp.103-114
Publisher: Springer
DOI: 10.1007/s002210050442
ISSN: 1432-1106
PMID: 9698196
Organisation Unit: Graduate Research School; University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99472600902621
Output Type: Journal article

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