Implicit knowledge versus psychoacoustic similarity in priming of chords

Date

1998-02-01

Author

Tekman, HG
Bharucha, JJ

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A chord-priming paradigm was used to test predictions of a neural net model (MUSACT). The model makes a nonintuitive prediction: Following a prime chord, expectations for the target chord are based on psychoacoustic similarity al short stimulus onset asynchronies (SOAs) but on implicit knowledge of conventional relationships at longer SOAs. In a critical rest, 2 targets were selected for each prime. One was more psychoacoustically similar to the prime, and the other was more closely related on the basis of convention. With an SOP, of 50 ms, priming favored the psychoacoustically similar target; with SOAs of 500 ms and longer, the effect reversed, and priming favored conventional relatedness. The results underscore the limitations of models or harmony based on psychoacoustic factors alone. These studies demonstrate how neural net learning models that are appropriately constrained can be subject to strong empirical verification.

Subject Keywords

Experimental and Cognitive Psychology, Arts and Humanities (miscellaneous), Behavioral Neuroscience

URI

https://hdl.handle.net/11511/65012

Collections

Department of Psychology, Article