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A developmental study of the influence of task characteristics on motor overflow


Addamo, PK and Farrow, M and Hoy, KE and Bradshaw, JL and Georgiou-Karistianis, N, A developmental study of the influence of task characteristics on motor overflow, Brain and Cognition: Journal of Clinical, Experimental, and Theoretical Research, 69, (2) Article 413-9. ISSN 0278-2626 (2009) [Refereed Article]

DOI: doi:10.1016/j.bandc.2008.09.005


Motor overflow refers to involuntary movement or muscle activity that may coincide with voluntary movement. This study examined factors influencing motor overflow in 17 children (8-11 years), and 17 adults (18-35 years). Participants performed a finger pressing task by exerting either 33% or 66% of their maximal force output using their dominant or non-dominant hand. Attention was manipulated by tactile stimulation to one or both hands. Overflow relative to the target force was greater in children compared to adults, and at the lower target force for both groups, but was not influenced by attentional stimulation. Childhood overflow was greater when the left-hand performed the task. Although an immature motor system may underlie an inability to suppress involuntary movement, childhood overflow may provide motor stabilization.

Item Details

Item Type:Refereed Article
Research Division:Biomedical and Clinical Sciences
Research Group:Neurosciences
Research Field:Neurosciences not elsewhere classified
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the health sciences
UTAS Author:Farrow, M (Dr Maree Farrow)
ID Code:103393
Year Published:2009
Web of Science® Times Cited:10
Deposited By:Wicking Dementia Research and Education Centre
Deposited On:2015-10-07
Last Modified:2015-10-07

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