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J Exp Psychol Gen. 2000 Sep;129(3):291-307.

Music perception and octave generalization in rhesus monkeys.

Author information

  • 1Department of Neurobiology and Anatomy, University of Texas Medical School at Houston 77225, USA. anthony.a.wright@uth.tmc.edu

Abstract

Two rhesus monkeys were tested for octave generalization in 8 experiments by transposing 6- and 7-note musical passages by an octave and requiring same or different judgments. The monkeys showed no octave generalization to random-synthetic melodies, atonal melodies, or individual notes. They did show complete octave generalization to childhood songs (e.g., "Happy Birthday") and tonal melodies (from a tonality algorithm). Octave generalization was equally strong for 2-octave transpositions but not for 0.5- or 1.5-octave transpositions of childhood songs. These results combine to show that tonal melodies form musical gestalts for monkeys, as they do for humans, and retain their identity when transposed with whole octaves so that chroma (key) is preserved. This conclusion implicates similar transduction, storage, processing, and relational memory of musical passages in monkeys and humans and has implications for nature-nurture origins of music perception.

PMID:
11006902
[PubMed - indexed for MEDLINE]
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