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Pure feedback effects in absolute identification

S Mori1, L M Ward

  • 1Nagasaki University, Japan.

Perception & Psychophysics
|October 1, 1995
PubMed
Summary
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Trial-by-trial feedback did not improve judgmental accuracy but altered response biases in auditory perception tasks. This suggests feedback impacts long-term memory for anchors and response tendencies differently.

Area of Science:

  • Psychology
  • Cognitive Science
  • Auditory Perception

Background:

  • Understanding how trial-by-trial feedback influences human judgment is crucial for cognitive theories.
  • Previous research suggested feedback enhances judgmental accuracy, but its independent effects remain debated.
  • Distinguishing feedback effects from global anchoring and other influences requires careful experimental design.

Purpose of the Study:

  • To isolate the effects of immediate feedback on judgmental accuracy and sequential dependencies.
  • To investigate how feedback influences auditory perception tasks, specifically sound intensity and frequency identification.
  • To differentiate the impact of response categories versus stimuli number on sequential dependencies.

Main Methods:

  • Subjects performed absolute identification tasks with alternating feedback and no-feedback sequences.

Related Experiment Videos

  • Experiments involved identifying sound intensity and sound frequency.
  • Experiment 3 manipulated the number of response categories and stimuli to assess their effects on sequential dependencies.

    • Main Results:

    • Judgmental accuracy was equivalent in feedback and no-feedback conditions, contradicting prior findings.
    • Feedback sequences showed increased dependency on the preceding stimulus, while no-feedback sequences showed increased dependency on the previous response.
    • The number of response categories had a greater impact on sequential dependencies than the number of stimuli.

    Conclusions:

    • Feedback primarily influences judgmental accuracy by enhancing long-term memory for judgmental anchors.
    • Feedback alters response biases, thereby affecting sequential dependencies in perception tasks.
    • The number of response categories plays a significant role in shaping sequential dependencies in absolute identification.