- psychomotor automatism
- The term psychomotor automatism comes from the Greek noun psuchè (life breath, spirit, soul, mind), the Latin noun motio (movement), and the Greek adjective automatos (automatically, driven by a power of its own). It was introduced in or shortly before 1954 by the Canadian neu-roscientists Wilder Graves Penfield (1891-1976) and Herbert Henri Jasper (1906-1999) to denote a period of confused behaviour with amnesia. Penfield and Jasper employ the term psychomotor automatism in the context of their classification of *psychical states in opposition to the terms *psychical hallucination and *psychical illusion. Psychomotor automatisms are not classified as hallucinations, but as their equivalent in the sphere of motor movements. Penfield suggests that psychomotor automatisms may be evoked by local epileptic discharge in the pre-frontal or temporal cortex spreading to the dien-cephalon (i.e. the higher brainstem). He is careful to point out that in order to evoke an attack of automatism, the epileptic activity must be confined to the part of the diencephalon associated with consciousness, leaving the so-called automatic sensory-motor mechanism unaffected. As he asserts, "When a local discharge occurs in pre-frontal or temporal areas of the cortex, it may spread directly to the highest brain-mechanism by bombardment (the mind's mechanism). When it does this, it produces automatism." And, "So it is that the mechanism in the higher brain-stem, whose action is indispensable to the very existence of consciousness, can be put out of action selectively! This converts the individual into a mindless automaton." Conceptually, this explanatory model is related to Jackson's conception of the * dreamy state. For a further explanation see the entries Automatism and Dreamy state.ReferencesMullan, S., Penfield, W. (1959). Illusion of comparative interpretation and emotion. Archives ofNeurology and Psychiatry, 81, 269-284.Penfield, W., Jasper, H. (1954). Epilepsy and the functional anatomy ofthe human brain. Boston, MA: Little, Brown and Company.
Dictionary of Hallucinations. J.D. Blom. 2010.
Look at other dictionaries:
automatism — The term automatisme was introduced in or shortly before 1846 by the French alienist Jules Gabriel François Baillarger (1806 1891). It comes from the Greek adjective automatos, which means automatically or driven by a power of its own.… … Dictionary of Hallucinations
Automatism — 1. A behavior that is performed without conscious knowledge and that does not appear to be under conscious control. This curious type of behavior occurs in a number of neurological and psychiatric disorders. The neurologic disorders associated… … Medical dictionary
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
psychical illusion — Also known as illusion of comparative interpretation and interpretive illusion. The term psychical illusion is indebted to the Greek noun psuchè (life breath, spirit, soul, mind). It was introduced in or shortly before 1954 by the Canadian… … Dictionary of Hallucinations
psychical state — Also known as aura. The term psychical state is indebted to the Greek noun psuchè (life breath, spirit, soul, mind). It was introduced in or shortly before 1954 by the Canadian neuroscientists Wilder Graves Penfield (1891 1976) and Herbert… … Dictionary of Hallucinations
Epilepsy — (seizure disorder): When nerve cells in the brain fire electrical impulses at a rate of up to four times higher than normal, this causes a sort of electrical storm in the brain, known as a seizure. A pattern of repeated seizures is referred to as … Medical dictionary
Bratty v Attorney-General of Northern Ireland — English case infobox name=Bratty v Attorney General for Northern Ireland court=House of Lords date decided= 3rd October 1961 full name= Bratty v Attorney General for Northern Ireland citations= 1961 UKHL 3 judges= Lord Kilmuir, LC; Lord Tucker;… … Wikipedia
Bromazepam — Systematic (IUPAC) name 9 bromo 6 pyridin 2 … Wikipedia
Seizure types — The numerous epileptic seizure types are most commonly defined and grouped according to the scheme proposed by the International League Against Epilepsy (ILAE) in 1981. Distinguishing between seizure types is important since different types of … Wikipedia
Glossary of psychiatry — In this glossary of psychiatric terms, mostly Greek, secondly French and German and some English terms, as used in psychiatric literature, were defined. We have included many other terms with the passage of time and aim to broaden this article to … Wikipedia