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pneumograph

pneumograph A pneumograph is an instrument used to record the movements of the chest during breathing.

A pneumograph is an instrument used to record the movements of the chest during breathing. In the form described here, a flexible rubber bottle is fastened to the chest so that breathing compresses it, and the resulting pressure is registered for study of physiological changes related to mental states.

Also see

Sources

Drafting source: Baldwin Dictionary of Philosophy and Psychology, 1901. 1901 New York Macmillan original; archive index checked 2026-10-18. “Laboratory (of psychology) and Apparatus” (Laboratory).
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PsychTerms (psychterms.org), CC BY 4.0, version 1. “pneumograph.” Development preview.

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