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Related Experiment Videos

Hemispheric superiority for recognizing faces depends upon how they are learned

R E Galper, L Costa

    Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
    |March 1, 1980
    PubMed
    Summary

    Information type impacts face recognition strategies and brain hemisphere advantage. Different encoding (personality vs. physical features) led to contrasting brain lateralization, suggesting flexible cognitive processing in face recognition.

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    Area of Science:

    • Cognitive Neuroscience
    • Psychology

    Background:

    • The brain's hemispheres (left and right) often specialize in different cognitive functions.
    • Hemispheric asymmetry is well-documented for various tasks, including face recognition.

    Purpose of the Study:

    • To determine if the type of information used during encoding influences face recognition strategies.
    • To investigate the subsequent effect of encoding information on hemispheric advantage in face recognition.

    Main Methods:

    • Experiment 1: Participants viewed faces with either personality or physical feature information before a tachistoscopic recognition task.
    • Experiment 2: Replicated Experiment 1 without verbal encoding information (control condition).
    • A subsequent session re-tested participants with the original encoding manipulation to assess reliability.

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    Main Results:

    • Encoding information significantly altered hemispheric superiority patterns for face recognition.
    • A 'crossover' pattern of contrasting hemispheric advantages emerged when different encoding types were used.
    • This crossover pattern was not observed in the control condition, indicating the influence of encoding information.

    Conclusions:

    • Intra-subject differences in hemispheric superiority suggest the use of alternative encoding or processing strategies.
    • The specific relationship between these strategies and hemispheric advantages remains to be clarified.
    • A framework is proposed linking cognitive processing, task demands, and observed hemispheric advantage.