Rhythm

The rhythm task is an auditory task designed to measure rhythmic perception (Foxton et al., 2006). Subject hears 2 5-note rhythms and is asked to indicate which has an extra gap. The monotonic version (top) uses 1000 Hz tones, while the polytonic version (bottom) presents tones in random pitches from an octave divided into 7 steps. The idea here is that issues with pitch perception may impair rhythm perception only in an polytonic series, in which the pitch distracts the participant.

Total Items: Adaptive in a 2 down, 1 up procedure
Completion Time: 8 minutes
Dependent Variable: Gap Threshold (ms)

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Reference
Foxton, J. M., Nandy, R. K., & Griffiths, T. D. (2006). Rhythm deficits in “tone deafness”. Brain and cognition, 62(1), 24–9. doi:10.1016/j.bandc.2006.03.005