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ERIC Number: EJ914182
Record Type: Journal
Publication Date: 2010-Sep
Pages: 10
Abstractor: As Provided
Reference Count: 32
ISSN: ISSN-0270-1367
Detecting and Correcting Errors in Rapid Aiming Movements: Effects of Movement Time, Distance, and Velocity
Sherwood, David E.
Research Quarterly for Exercise and Sport, v81 n3 p300-309 Sep 2010
According to closed-loop accounts of motor control, movement errors are detected by comparing sensory feedback to an acquired reference state. Differences between the reference state and the movement-produced feedback results in an error signal that serves as a basis for a correction. The main question addressed in the current study was how distance, movement time, and velocity influence both spatial or temporal error detection. Forty college-aged participants (30 women and 10 men) performed rapid aiming movements over 30[degrees] or 50[degrees] in either 210 ms or 350 ms without vision. The participants verbally estimated the distance moved and the movement time during acquisition before knowledge of results was given and during an immediate retention test without knowledge of results. Spatial and temporal objective-subjective correlations were greater in the 210-ms condition compared to the 350-ms condition, but were not related to movement velocity. (Contains 1 note and 4 figures.)
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Publication Type: Journal Articles; Reports - Evaluative
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Colorado