Perception of timing is more context sensitive than sensorimotor synchronization.
| Number | 1261 |
|---|---|
| Year | 2002 |
| Drawer | 24 |
| Entry Date | 12/20/2002 |
| Authors | Repp, B.H. |
| Contact | |
| Publication | Perception & Psychophysics, 64 , 703-716. |
| url | http://www.haskins.yale.edu/Reprints/HL1261.pdf |
| Abstract | In 3 experiments, the effects of contextual temporal variation on the perception of timing and on sensorimotor synchronization were examined. Exp 1 (with 12 19-33 yr olds) showed that exposure to a variably timed auditory precursor sequence reduces the detectability of deviations from isochrony in a musical test sequence. In Exp 2 (n=12), there was only a small and transient effect of identical precursor sequences on the variability of finger taps that were synchronized with a similar test sequence. The precursor did not impede phase error correction following deviations from isochrony in the test sequence. Exp 3 (with 10 19-56 yr olds) employed a within-subjects design that required simultaneous detection of irregularities in and synchronization with nonmusical auditory sequences. Precursor variability impaired only detection, not synchronization performance. It is suggested that perception of deviations from regularity engages context-sensitive timing processes, probably related to conscious awareness, that are not involved in sensorimotor synchronization. |
| Notes |
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