- centrifugal theory of hallucinatory activity
- The centrifugal theory is an explanatory model of hallucinatory activity which is traditionally attributed to the German physiologist and zoologist Johannes Peter Müller (1801-1858). The centrifugal theory suggests that subcortical and/or cortical areas of the brain (or the mind, in a dualist reading) are responsible for mediating the initial impulse for some types of hallucinatory activity, which is then 'projected outwards' to produce the false impression of a sensory percept. Historical examples ofthe ensuing type of hallucination are known under the names * intuitive hallucination, * psychic hallucination, and *sensorial hallucination. In some versions of the centrifugal theory, the efferent impulse is considered to be conducted backwards, i.e. in an afferent direction, by the primary sensory pathways. The Italian psychiatrist Eugenio Tanzi (1856-1934), for example, hypothesizes that the primary sensory pathways possess such a capacity for 'reversed conductibility'. The centrifugal theory constitutes the conceptual counterpart of the * centripetal theory of hallucinatory activity.ReferencesMüller, J. (1826). Ueber die phantastischen Gesichtserscheinungen. Koblenz: Hölscher.Parish, E. (1897). Hallucinations and illusions. A study ofthe fallacies ofperception. London: Walter Scott.Tanzi, E. (1909). A text-book ofmental diseases. Translated by Ford Robertson, W., Mackenzie, T.C. London: Rebman Limited.
Dictionary of Hallucinations. J.D. Blom. 2010.
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centripetal theory of hallucinatory activity — The name centripetal theory refers to an explanatory model of hallucinatory activity which is traditionally attributed to the German physiologist and zoologist Johannes Peter Müller (18011858). Conceptually, the centripetal theory constitutes… … Dictionary of Hallucinations
psychic hallucination — Also known as psychical hallucination, mental hallucination, conception hallucination, and sensorial hallucination. The term psychic hallucination is indebted to the Greek noun psuchè (life breath, spirit, soul, mind). It was introduced in or… … Dictionary of Hallucinations
sensorial hallucination — Also known as psychic hallucination. The term sensorial hallucination is indebted to the Latin noun sensorium, which means seat of the senses, or brain. It was used in 1846 by the French dream researcher Maurice Macario to denote a… … Dictionary of Hallucinations
classification of hallucinations — Hallucinations are classified in a multitude of ways. As in all classifications, the resulting arrangements are subordinate to the purpose of the classification at hand, and to the guiding principles involved. An implicit purpose of… … Dictionary of Hallucinations
literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… … Universalium