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Related Experiment Videos

Auditory recency in immediate memory

A M Surprenant1, M A Pitt, R G Crowder

  • 1Yale University, New Haven, Connecticut.

The Quarterly Journal of Experimental Psychology. A, Human Experimental Psychology
|May 1, 1993
PubMed
Summary
This summary is machine-generated.

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The recency effect in immediate serial recall is stronger for speech sounds. Manipulating familiarity or discriminability of sounds did not enhance this effect, suggesting undegraded speech is key.

Area of Science:

  • Cognitive Psychology
  • Auditory Perception
  • Memory Research

Background:

  • The recency effect, a phenomenon in immediate serial recall, is notably larger for speech sounds compared to non-speech sounds.
  • Two primary hypotheses attempt to explain this difference: distinct processing of speech sounds versus enhanced familiarity and discriminability of speech.

Purpose of the Study:

  • To investigate the underlying mechanisms of the recency effect in immediate serial recall.
  • To differentiate between the distinct processing hypothesis and the familiarity/discriminability hypothesis for speech sounds.

Main Methods:

  • Six experiments were conducted, manipulating stimulus labels, subject expertise (musicians), stimulus familiarity, acoustic complexity, and pitch distance.
  • Recency and overall recall were measured under various conditions.

Related Experiment Videos

Main Results:

  • Labeling stimuli as speech or non-speech did not impact recency or recall.
  • While familiarity and discriminability manipulations significantly affected overall recall, they did not enhance the recency effect.
  • The presence of undegraded speech sounds was crucial for observing a significant recency effect.

Conclusions:

  • The enhanced recency effect for speech sounds is not solely attributable to familiarity or discriminability.
  • The critical factor appears to be the inherent properties of undegraded speech sounds themselves, rather than general acoustic features or learned associations.