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Depression in the fifties.

M Hamilton

    Gerontology
    |January 1, 1986
    PubMed
    Summary

    Involutional melancholia, a diagnosis for depression in the fifties, is disappearing. This category likely emerged from comparing unipolar and bipolar depressions without considering differing onset ages.

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    Area of Science:

    • Psychiatry
    • Geriatric Medicine
    • Mental Health

    Background:

    • The diagnosis 'involutional melancholia' was historically applied to depression in individuals around the fifties.
    • This diagnostic category is now infrequently used in clinical practice.
    • Its historical usage may stem from comparisons between different mood disorder classifications.

    Purpose of the Study:

    • To investigate the origins and potential misinterpretations of the 'depression in the fifties' diagnostic category.
    • To re-evaluate the relationship between 'involutional melancholia' and other depressive disorders based on age of onset.

    Main Methods:

    • Historical analysis of psychiatric diagnostic trends.
    • Comparative review of unipolar and bipolar depression characteristics.
    • Examination of modal age of onset differences across depressive subtypes.

    Main Results:

    • The category of 'involutional melancholia' appears to be a construct that emerged from comparing distinct depressive disorders.
    • This comparison overlooked significant differences in the typical age at which unipolar and bipolar depression first appear.
    • The decline in the use of 'involutional melancholia' reflects a better understanding of mood disorder heterogeneity.

    Conclusions:

    • 'Depression in the fifties' or 'involutional melancholia' is not a distinct diagnostic entity but rather a historical artifact.
    • Understanding the modal age of onset is crucial for differentiating between unipolar and bipolar depression.
    • Modern psychiatric nosology provides a more accurate framework for classifying depressive disorders than historical categories like involutional melancholia.

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