Journal
JOURNAL OF MOTOR BEHAVIOR
Volume 41, Issue 1, Pages 30-44Publisher
ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
DOI: 10.1080/00222895.2009.10125918
Keywords
effector proficiency; effector specificity; intermanual transfer; sequence learning; skill acquisition
Funding
- German Research Council (DFG) [HO 1301/12-1]
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In a serial reaction time task, participants practiced a repeating sequence with 1 hand. In interleaved blocks, they responded to random sequences with the other hand. Experiment 1 was composed of 5 sessions, each consisting of 30 blocks. Intermanual transfer, reflecting a hand-independent component of sequence knowledge, increased across session. A smaller but significant, nontransferable, and hand-specific component was evident in each session and did not increase with practice. Experiment 2 comprised only I session. Uninterrupted practice (no interleaved random blocks) improved hand-independent sequence learning in comparison with interrupted practice (as implemented in Experiment I), whereas hand-specific sequence learning was unaffected by this between-subjects manipulation. These findings suggest separate mechanisms 1 or effector-independent sequence learning and effector-specific acquisition of optimized response coarticulation.
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