Phase attraction in sensorimotor synchronization with auditory sequences: effects of single and periodic distractors on synchronization accuracy.
Four experiments showed that both single and periodic distractor tones affected the timing of finger taps produced in synchrony with an isochronous auditory target sequence. Single distractors had only small effects, but periodic distractors occurring at various fixed or changing phase relationships exerted strong phase attraction. The attraction was asymmetric, being stronger when distractors preceded target tones than when they lagged behind. A large pitch difference between target and distractor tones (20 vs. 3 semitones) did not reduce phase attraction substantially, although in the case of continuously changing phase relationships it did prevent complete capture of the taps by the distractors. The results support the hypothesis that phase attraction is an automatic process that is sensitive primarily to event onsets.
Repp
Bruno H
BH
Haskins Laboratories, New Haven, Connecticut 06511-6695, USA. repp@haskins.yale.edu
D000328:Adult; D001288:Attention; D001307:Auditory Perception / Q000502:physiology*; D004007:Dichotic Listening Tests; D004192:Discrimination, Psychological / Q000502:physiology*; D005260:Female; D005364:Field Dependence-Independence; D006801:Humans; D008297:Male; D008875:Middle Aged; D009068:Movement / Q000502:physiology; D010363:Pattern Recognition, Automated; D010507:Periodicity; D010897:Pitch Discrimination; D011571:Psychoacoustics; D011597:Psychomotor Performance / Q000502:physiology*; D011930:Reaction Time / Q000502:physiology*; D012680:Sensitivity and Specificity; D017603:Signal Detection, Psychological / Q000502:physiology; D013997:Time Factors