Heterophasia
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
Heterophasia is a speech disorder characterized by the substitution of words or letters during speech, frequently observed in cortical and transcortical sensory aphasia. When severe, it can result in an incomprehensible speech pattern known as jargonaphasia.
Encyclopedia entry (1928–1936)
HETEROPHASIA, HETEROPHRASIA, otherwise known as paraphasia, is a speech disorder in which certain words are used instead of others (verbal heterophasia) or certain letters in a word are replaced by others (literal, or letter, heterophasia). Heterophasia is particularly characteristic of the symptom complex of cortical and transcortical sensory aphasia, but is also found in transcortical motor aphasia. In sensory aphasia, speech as a result of severe heterophasia can become completely incomprehensible, resembling a peculiar jargon (so-called jargonaphasia).
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Cite this page
“Heterophasia.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.com/article/heterophasia/