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February 16, 1901


Author Affiliations

Lecturer on Nervous Diseases at Western Pennsylvania Medical College. PITTSBURG, PA.

JAMA. 1901;XXXVI(7):441-444. doi:10.1001/jama.1901.52470070027001h

The different epochs of life are factors of great moment both in the production and in the exacerbation of nervous instability. They are rarely passed through, even in the most healthy individual, without some psychical or physical manifestation. Each crisis in life determines new impulses, new thought, and new actions, which give each epoch a distinct physiology and psychology. We purpose to discuss in this paper the effect these periods have upon the brain and nervous constitution, considering chiefly the minor and transient disorders influenced or excited by them, and to attempt to explain the preventive measures necessary and advisable, possible and ideal, which may determine their development. The territory that we especially wish to cover shades insensibly into the two extremes, mental soundness and mental disease. This borderland is especially important on acount of the fact that the psychoses as a rule gradually pass through a prodromic stage of

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