Appendix

 

Appendix to: Desain, P. & Honing H. (2003) The Formation of Rhythmic Categories and Metric Priming . Perception, 32(3), 341-365. Ad. Figure 1     The perception of rhythmic categories is dependent on the local context of neighboring intervals. Example of the two time scales present in music: a, a performed rhythm on a continuous time scale and b, the perceived rhythmic interpretation on a discrete, symbolic time scale. Compare the blue interval with the red interval. While the first is played slightly shorter than the second, it is interpreted as 1.33 times longer. Performance:

Ad. Figure 13   Animated time clumping map showing the change from no meter to duple meter condition (left) and from no meter to triple meter condition (right).

Example of the rhythm [0.263 0.421 0.316] (in seconds) presented in a duple meter context (left, gray circle) and in a triple meter context (right, gray circle). In the duple meter context most subjects (64%) perceived the rhythm as 1-2-1 (10% identified it as 1-3-2). In the triple context the very same rhythm is perceived by most subjects as 1-3-2 (no one identified it as 1-2-1). The audio examples are like the stimulus presented to the subjects: three times repeated embedded in either a duple or triple metrical context. For an elaborated demo containing all experimental data, sound and animated examples see: Quantization demo

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