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Problems in planning bimanually incongruent grasp postures relate to simultaneous response specification processes


Hughes, CML and Seegelke, C and Reissig, P, Problems in planning bimanually incongruent grasp postures relate to simultaneous response specification processes, Brain and Cognition, 87 pp. 22-29. ISSN 0278-2626 (2014) [Refereed Article]

Copyright Statement

Copyright 2014 Elsevier Inc.

DOI: doi:10.1016/j.bandc.2014.02.010


The purpose of the current experiments was to examine whether the problems associated with grasp posture planning during bimanually incongruent movements are due to crosstalk at the motor programming level. Participants performed a grasping and placing task in which they grasped two objects from a table and placed them onto a board to targets that required identical (congruent) or non-identical degrees of rotation (incongruent). The interval between the presentation of the first stimulus and the second stimulus (stimulus onset asynchrony: SOA) was manipulated. Results demonstrate that the problems associated with bimanually incongruent grasp posture planning are reduced at SOA durations longer than 1000ms, indicating that the costs associated with bimanual incongruent movements arise from crosstalk at the motor programming level. In addition, reach-to-grasp times were shorter, and interlimb limb coupling was higher, for congruent, compared to incongruent, object end-orientation conditions in both Experiment 1 and 2. The bimanual interference observed during reach-to-grasp execution is postulated to arise from limitations in the visual motor system or from conceptual language representations. The present results emphasize that bimanual interference arises from constraints active at multiple levels of the neurobiological-cognitive system.

Item Details

Item Type:Refereed Article
Keywords:bimanual coordination, end-state comfort, grasping and placing
Research Division:Health Sciences
Research Group:Sports science and exercise
Research Field:Motor control
Objective Division:Health
Objective Group:Other health
Objective Field:Other health not elsewhere classified
UTAS Author:Reissig, P (Ms Paola Reissig)
ID Code:98282
Year Published:2014
Web of Science® Times Cited:2
Deposited By:Psychology
Deposited On:2015-02-10
Last Modified:2015-05-15

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