Auditory Pattern Memory: Mechanisms of Tonal Sequence Discrimination by Human Observers

Abstract

A two-process model of pattern discrimination was developed to describe how tonal sequences are processed, stored, and discriminated by human observers. The model was evaluated in tasks in which observers were required to discriminate between the spectral or temporal patterns encoded in two sequences of tones. The experimental results supported the assumptions of a trace/context coding theory. The trace mechanism is relatively insensitive to temporal transformations made to frequency-coded patterns but relatively sensitive to temporal transformations made to temporally coded patterns. The effects of intervening maskers on the trace were also evaluated.

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Document Details

Document Type
Technical Report
Publication Date
Oct 30, 1988
Accession Number
ADA204250

Entities

People

  • Robert D. Sorkin

Organizations

  • Purdue University

Tags

Communities of Interest

  • Human Systems
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Air Force
  • Coding
  • Compression
  • Data Acquisition
  • Detection
  • Discrimination
  • Frequency
  • Identification
  • Information Processing
  • Intensity
  • Intervals
  • Observers
  • Psychology
  • Recognition
  • Signal Detection
  • Students
  • Time Intervals

Fields of Study

  • Psychology

Readers

  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Speech Processing/Speech Recognition.