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Implicit memory for unfamiliar objects depends on access to structural descriptions.

D L Schacter1, L A Cooper, S M Delaney

  • 1Department of Psychology, University of Arizona, Tucson 85721.

Journal of Experimental Psychology. General
|March 1, 1990
PubMed
Summary
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Implicit memory for object structure is enhanced by encoding global 3D object details, not local 2D features. This implicit memory is functionally distinct from explicit memory.

Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Memory Studies

Background:

  • Implicit memory influences object perception and decision-making.
  • Understanding the relationship between implicit and explicit memory is crucial for cognitive models.

Purpose of the Study:

  • To investigate implicit memory for unfamiliar objects.
  • To determine if implicit memory relies on global or local object features.
  • To examine the functional dissociation between implicit and explicit memory.

Main Methods:

  • Subjects performed an object decision task on line drawings.
  • Encoding focused on global 3D structure versus local 2D features.
  • Elaborative encoding was manipulated in subsequent experiments.
  • Object decision and recognition performance were compared.

Related Experiment Videos

Main Results:

  • Priming effects were observed for global 3D structure encoding, not local 2D features.
  • Explicit memory did not differ based on global vs. local encoding.
  • Elaborative encoding differentially affected implicit and explicit memory tasks.
  • Object decision and recognition performance were stochastically independent.

Conclusions:

  • Implicit memory, as measured by priming, depends on encoding and accessing structural descriptions of objects.
  • Evidence supports a functional dissociation between implicit and explicit memory systems.
  • Object perception and memory are influenced by the level of structural information encoded.