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Related Experiment Video

Updated: May 29, 2026

Efficiently Recording the Eye-Hand Coordination to Incoordination Spectrum
07:30

Efficiently Recording the Eye-Hand Coordination to Incoordination Spectrum

Published on: March 21, 2019

Inconsistent handedness and saccade execution benefit face memory without affecting interhemispheric interaction.

Keith B Lyle1, Alyssa E Orsborn

  • 1Department of Psychological and Brain Sciences, University of Louisville, Louisville, KY 40292, USA. keith.lyle@louisville.edu

Memory (Hove, England)
|September 17, 2011
PubMed
Summary

Inconsistent handedness and saccadic eye movements improve face recognition memory, but not by increasing brain hemisphere interaction as previously thought. These cognitive strategies benefit memory for both familiar and unfamiliar faces.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Human Memory

Background:

  • Inconsistent handedness and saccadic eye movements are linked to enhanced memory performance.
  • This enhancement is hypothesized to stem from increased interhemispheric interaction.
  • The specific mechanisms underlying these mnemonic benefits require further investigation.

Purpose of the Study:

  • To test the hypothesis that inconsistent handedness and saccadic eye movements enhance memory via increased interhemispheric interaction.
  • To investigate the effects of these factors on face recognition, differentiating between famous and novel faces.
  • To determine if mnemonic benefits are specific to interhemispheric interaction or have broader cognitive effects.

Main Methods:

  • Participants classified faces as famous or novel under bilateral (simultaneous in both visual fields) and unilateral (one visual field) presentation conditions.
  • Handedness consistency was assessed, and participants performed repetitive saccadic eye movements.
  • Performance metrics included reaction time and accuracy for face classification.

Main Results:

  • Bilateral presentation facilitated faster and more accurate recognition of famous faces, supporting its role in interhemispheric interaction.
  • Neither inconsistent handedness nor saccade execution amplified these bilateral gain effects.
  • Inconsistent handedness and saccade execution improved overall face classification accuracy, particularly for novel faces, suggesting benefits beyond interhemispheric interaction.

Conclusions:

  • The mnemonic benefits of inconsistent handedness and saccadic eye movements extend to face recognition.
  • These benefits are not mediated by increased interhemispheric interaction as previously hypothesized.
  • The findings suggest broader cognitive mechanisms are responsible for the observed memory enhancements.