MUSC 2911 Music Perception and Cognition

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MUSC 2911Music Perception and Cognition

• Rhythm I perception and production

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Overview

• How do we measure time?
• Perception
• Production
• Temporal Tasks
• Simple Phenomena

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How do we measure time

• Body time (Luce/Fraisse)
• Abstract timekeepers (Povel)
• Information versus clock theories (Ornstein)
• Oscillators (Large and Kolen)

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Temporal Tasks

• synchronisation/tapping
• continuation
• spontaneous production
• playing musical rhythms
• imitating musical rhythms
• adjustment (speech)
• discrimination
• identification
• detection
• NB some of these are more ecologically valid than
  others

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Simple Phenomena

• Adjustment to small whole-number ratios
• assimilation/contrast (Fraisse/Povel)
• categorisation (Clarke/Parncutt)
• Quantization (Longuet-Higgins, 1979 Desain
  Honing, 1992)
• Entrainment, hysteresis (Large Kolen, 1994)
• Beat induction (all of above)

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Categorical Perception
500 250 484 266 469 281 453 297 438 312 422 328 40
6 344 391 359 375 375

• Example
• 21/11 categories
• Identification
• binary
• Discrimination
• Pairs
• Peak at category boundary
• Based on Clarke (1987)

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Summary

• Many different experimental paradigms
• Many similar findings
• We regularise/categorise when we hear, imitate
  and produce rhythms
• We translate noisy (and expressive) sequences of
  durations into regular ones
• Duration ratios of 11, 21 and 31 are
  prioritised in both perception and production