Abstract
Aspects of the ‘zygonic’ model of expectation in music (Ockelford, 2006) were tested experimentally. Forty subjects were played a diatonic melody, starting with the initial note only, then the first two notes, and so on. Each time, subjects were asked to sing what they considered to be the most likely continuation. The results were compared with the outputs of three algorithms derived from the zygonic model, which took into account adjacency (‘Z1’), adjacency and recency (‘Z2’), and adjacency, recency, and between-group projections (‘Z3’). Each algorithm modelled the perceptual responses with statistically distinct degrees of accuracy; Z3 was the most faithful to subjects’ expectations. Given the empirical data, potential refinements to the quantification of the zygonic model were considered. Additionally, it was found that men and women exhibited different patterns of expectation in relation to the stimuli that were presented, paralleling recent neuropsychological data suggesting that the location of music-structural processing in the brain may differ by gender.
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