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Updated: Dec 22, 2025

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Repetitive horizontal eye movements may enhance memory recall, known as the Saccade-Induced Retrieval Enhancement (SIRE) effect. However, recent studies found this memory boost to be inconsistent and highly dependent on experimental design.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Memory Research

Background:

  • Recent studies suggest horizontal eye movements enhance memory retrieval.
  • This phenomenon is termed the Saccade-Induced Retrieval Enhancement (SIRE) effect.
  • The robustness and generalizability of the SIRE effect require further investigation.

Purpose of the Study:

  • To investigate the replicability and consistency of the Saccade-Induced Retrieval Enhancement (SIRE) effect.
  • To compare memory performance following horizontal, vertical, and no eye movements.
  • To assess the influence of experimental design on the SIRE effect.

Main Methods:

  • Two experiments were conducted comparing memory performance.
  • Participants engaged in repetitive horizontal or vertical eye movements, or a control condition.
  • Bayesian statistical analyses were employed to evaluate evidence for the SIRE effect or a null effect.

Main Results:

  • Experiment 1 showed a statistically significant SIRE effect, but with weak Bayesian evidence.
  • Experiment 2, with increased sample size and separate manipulation of eye movement conditions, found no evidence of a SIRE effect.
  • Bayesian analyses in Experiment 2 provided significant evidence for a null effect.

Conclusions:

  • The Saccade-Induced Retrieval Enhancement (SIRE) effect appears to be inconsistent.
  • The presence of the SIRE effect is highly sensitive to specific experimental parameters.
  • Further research is needed to confirm the robustness of the SIRE effect before exploring underlying mechanisms.