Dream speech
Words in the mind during sleep / From Wikipedia, the free encyclopedia
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Dream speech (in German Traumsprache) is internal speech in which errors occur during a dream. The term was coined by Emil Kraepelin in his 1906 monograph titled Über Sprachstörungen im Traume ("On Language Disturbances in Dreams"). The text discussed various forms of dream speech, outlining 286 examples. Dream speech is not to be confounded with the 'language of dreams', which refers to the visual means of representing thought in dreams.[lower-alpha 1]
Three types of dream speech were considered by Kraepelin: disorders of word-selection (also called paraphasias), disorders of discourse (e.g. agrammatisms) and thought disorders. The most frequent occurring form of dream speech is a neologism.
While Kraepelin was interested in the psychiatric as well as the psychological aspects of dream speech, modern researchers have been interested in speech production in dreams as illuminating aspects of cognition in the dreaming mind. They have found that during dream speech, Wernicke's area is not functioning well, but Broca's area is, leading to proper grammar but little meaning.