Interaction of hand orientations during familiarization of a goal-directed aiming task

Elaheh Amini; Ashril Yusof; Stephan Riek; Victor Selvarajah Selvanayagam

doi:10.1016/j.humov.2022.102955

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Interaction of hand orientations during familiarization of a goal-directed aiming task

Journal article

Peer reviewed

Interaction of hand orientations during familiarization of a goal-directed aiming task

Elaheh Amini, Ashril Yusof, Stephan Riek and Victor Selvarajah Selvanayagam

Human Movement Science, Vol.83, pp.1-8

2022

DOI: https://doi.org/10.1016/j.humov.2022.102955

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Abstract

directional feedback

spatial orientation

short-term adaptation

rapid learning

goal-directed aiming

The purpose of the present study was to examine errors for an isometric goal-directed aiming task during familiarization at different hand orientation. Interaction between neutral and pronated hand orientations with and without directional feedback would provide insights into short-term adaptations and the nature of control. In this study, 30 healthy right-handed adults (age, 22.7 ± 3.1 years; weight, 69.4 ± 16.6 kg; height, 166.7 ± 7.9 cm) were randomly assigned to neutral or pronated hand orientation conditions. To assess familiarization, participants performed ten sets (16 targets/set) of goal-directed aiming task with continuous visual feedback towards targets symmetrically distributed about the origin. Following familiarization, participants then completed eight sets; four sets with and four sets without directional feedback, in an alternated order. For both hand orientations, directional errors were reduced in the first two sets (p < 0.05), suggesting only three sets were required for familiarization. Additionally, the learning rate was also similar for both hand orientations. Following familiarization, aiming errors without feedback were significantly higher than with feedback while no change between sets was observed, regardless of hand orientation. Aiming errors were reduced in the early phase with and without visual feedback, however, in the late phase, errors were corrected when visual feedback was provided. It suggests that hand orientation does not affect familiarization, and mechanisms similar to rapid learning may be involved. It is probable that learning is consolidated during familiarization along with feedforward input to maintain performance. In addition, propriocep-tive feedback plays a role in reducing errors early, while the online visual feedback plays a role in reducing errors later, independent of hand orientation.

Details

Title: Interaction of hand orientations during familiarization of a goal-directed aiming task
Authors: Elaheh Amini (Author) - University of Malaya
Ashril Yusof (Author) - University of Malaya
Stephan Riek (Author) - University of the Sunshine Coast, Queensland, Graduate Research School
Victor Selvarajah Selvanayagam (Author) - University of Malaya
Publication details: Human Movement Science, Vol.83, pp.1-8
Publisher: Elsevier BV
DOI: 10.1016/j.humov.2022.102955
ISSN: 1872-7646
Organisation Unit: Graduate Research School; University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99632440502621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Neurosciences; Psychology; Psychology, Experimental; Sport Sciences

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