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Related Experiment Video

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Expectations for melodic contours transcend pitch.

Jackson E Graves1, Christophe Micheyl1, Andrew J Oxenham1

  • 1Department of Psychology, University of Minnesota.

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Summary

Melodic expectations, like those for pitch, apply to other sound qualities like loudness and brightness. These auditory expectations are influenced by context and suggest general principles of perceptual organization.

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Area of Science:

  • Cognitive Psychology
  • Music Theory
  • Auditory Perception

Background:

  • Melodic contour, the rise and fall of pitch, influences judgments of good melody.
  • Contour perception is known to extend beyond pitch to other auditory features like loudness and brightness.

Purpose of the Study:

  • To investigate if melodic expectations generalize to nontraditional auditory dimensions (brightness, loudness).
  • To determine if these expectations are dependent on long-term context.

Main Methods:

  • Experiment 1: Participants rated 3-tone sequences varying in brightness or loudness for melodic expectations.
  • Experiment 2: Melodies with similar beginnings were grouped to alter presentation context.

Main Results:

  • Subjective ratings showed contour-based expectations similar to pitch sequences across brightness and loudness.
  • Contextual changes affected results, but rating patterns remained consistent across dimensions.

Conclusions:

  • Melodic expectations are not limited to pitch and may reflect general perceptual organization principles.
  • Expectations for melodic continuation are context-dependent and generalize across auditory dimensions.