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Long-term semantic memory versus contextual memory in unconscious number processing.

Anthony G Greenwald1, Richard L Abrams, Lionel Naccache

  • 1Department of Psychology, University of Washington, Seattle 98195-1525, USA. agg@u.washington.edu

Journal of Experimental Psychology. Learning, Memory, and Cognition
|April 17, 2003
PubMed
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This study reveals that unconscious priming effects influence number perception. Task context and long-term memory interact to shape how we process numbers without conscious awareness.

Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Human Perception

Background:

  • Number magnitude processing is fundamental to cognition.
  • Subliminal perception research explores unconscious influences on judgment.
  • Understanding semantic memory's role in priming is crucial.

Purpose of the Study:

  • To investigate subliminal priming effects on number magnitude judgments.
  • To examine the influence of task context on unconscious priming.
  • To differentiate between long-term semantic memory and task-specific processing.

Main Methods:

  • Participants classified 2-digit numbers as larger or smaller than 55.
  • Target numbers were preceded by masked 2-digit primes (congruent or incongruent).
  • Experiments manipulated task context and prime presentation.

Related Experiment Videos

Main Results:

  • Subliminal primes influenced number judgments, indicating priming from long-term semantic memory.
  • Paradoxical priming effects emerged due to task context.
  • Task context could direct unconscious processing to specific digits or both.

Conclusions:

  • Subliminal priming is a complex phenomenon influenced by both stable semantic memory and dynamic task context.
  • Unconscious processing can be modulated by experimental settings, leading to context-dependent effects.
  • Both long-term memory and task context jointly govern subliminal priming in number perception.