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ERIC Number: EJ827621
Record Type: Journal
Publication Date: 2009-Mar
Pages: 7
Abstractor: As Provided
Reference Count: 0
ISSN: ISSN-0278-2626
A Developmental Study of the Influence of Task Characteristics on Motor Overflow
Addamo, Patricia K.; Farrow, Maree; Hoy, Kate E.; Bradshaw, John L.; Georgiou-Karistianis, Nellie
Brain and Cognition, v69 n2 p413-419 Mar 2009
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. (Contains 3 tables and 3 figures.)
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Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A