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Right hemisphere interference during negative affect: a reaction time study.

E Ladavas, R Nicoletti, C Umiltá

    Neuropsychologia
    |January 1, 1984
    PubMed
    Summary
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    Negative affect and recalling memories significantly slow reaction times (RTs). Negative emotions specifically delay responses mediated by the right hemisphere, highlighting its role in emotional processing.

    Area of Science:

    • Cognitive Psychology
    • Neuroscience
    • Human Emotion Research

    Background:

    • Reaction times (RTs) are crucial measures of cognitive processing speed.
    • Lateralized visual stimuli allow for investigation of hemispheric brain function.
    • Emotional states and memory recall can influence cognitive performance.

    Purpose of the Study:

    • To investigate the impact of negative affect and memory recollection on simple reaction times.
    • To determine if cognitive interference from mental activities affects RTs.
    • To explore potential hemispheric lateralization in the effects of negative affect on RTs.

    Main Methods:

    • Two experiments were conducted using normal subjects.
    • Simple reaction times (RTs) were measured in response to lateralized visual stimuli.

    Related Experiment Videos

  • Participants engaged in tasks involving negative affect induction and recollection of everyday scenes, compared to a control condition.

    • Main Results:

    • Both negative affect and memory recollection significantly increased RTs compared to the control condition.
    • Negative affect specifically led to a selective lengthening of RTs mediated by the right hemisphere.
    • No specific lateralization was mentioned for memory recollection effects.

    Conclusions:

    • Cognitive interference from both emotional states and memory recall demonstrably slows reaction times.
    • The right hemisphere appears to play a significant role in processing negative emotions, as evidenced by delayed RTs.
    • Further research is warranted to fully elucidate the hemispheric contributions to emotional processing and cognitive performance.