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Changes in specialized cognitive function following changes in hormone levels.

H W Gordon, E D Corbin, P A Lee

    Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
    |September 1, 1986
    PubMed
    Summary
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    Luteinizing hormone-releasing hormone (LHRH) injections improved fluency but not spatial skills in men. Hormonal changes did not affect cognitive function in males or females.

    Area of Science:

    • Neuroendocrinology
    • Cognitive Neuroscience

    Background:

    • Hormonal influences on human cognition are complex and not fully understood.
    • Follicle-stimulating hormone (FSH) and luteinizing hormone (LH) play roles in reproductive function, but their cognitive effects require further investigation.

    Purpose of the Study:

    • To investigate the impact of induced hormonal changes on specific cognitive functions in men.
    • To examine the relationship between gonadotropins and cognitive performance.
    • To assess cognitive function in relation to natural hormonal fluctuations in women.

    Main Methods:

    • Men received injections of luteinizing hormone-releasing hormone (LHRH) or a placebo.
    • Cognitive performance was assessed using spatial orientation and fluency tasks.
    • Cognitive function was monitored in women throughout their menstrual cycle.

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    Main Results:

    • LHRH injections impaired spatial orientation performance compared to placebo.
    • LHRH injections significantly enhanced performance on a fluency task.
    • Higher FSH levels correlated negatively with visuospatial skills and positively with fluency.
    • Testosterone injections and menstrual cycle hormonal shifts did not alter cognitive function in males or females, respectively.

    Conclusions:

    • Induced elevations in FSH and LH via LHRH administration differentially affect cognitive domains in men.
    • Gonadotropins may play a role in modulating specific cognitive abilities, such as fluency and visuospatial skills.
    • Cognitive functions appear robust to natural hormonal fluctuations within the menstrual cycle and acute testosterone changes.