In psychiatry, derailment (also loosening of association, asyndesis, asyndetic thinking, knight's move thinking, or entgleisen) refers to a pattern of discourse (in speech or writing) that is a sequence of unrelated or only remotely related ideas. The frame of reference often changes from one sentence to the next. Examples: "The next day when I'd be going out you know, I took control, like uh, I put bleach on my hair in California. "—given by Nancy C.

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  • In psychiatry, derailment (also loosening of association, asyndesis, asyndetic thinking, knight's move thinking, or entgleisen) refers to a pattern of discourse (in speech or writing) that is a sequence of unrelated or only remotely related ideas. The frame of reference often changes from one sentence to the next. Examples: "The next day when I'd be going out you know, I took control, like uh, I put bleach on my hair in California. "—given by Nancy C. Andreasen "The traffic is rumbling along the main road. They are going to the north. Why do girls always play pantomime heroes. "— given by Carl Schneider In a mild manifestation, this thought disorder is characterized by slippage of ideas further and further from the point of a discussion. Some of the synonyms given above (loosening of association, asyndetic thinking) are used by some authors to refer just to a loss of goal: discourse that sets off on a particular idea, wonders off and never returns to it. A related term is tangentiality— it refers to off-the-point, oblique or irrelevant answers given to questions. Entgleisen was first used with this meaning by Carl Schneider in 1930. The term asyndesis was introduced by N. Cameron in 1938, while loosening of association was introduced by A. Bleuler in 1950. The phrase knight's move thinking was first used in the context of pathological thinking by the psychologist Peter McKellar in 1957, who hypothesized that schizophrenics fail to suppress divergent associations. In some studies on creativity, knight's move thinking, while it describes a similarly loose association of ideas, is not considered a mental disorder or the hallmark of one; it is sometimes used as a synonym for lateral thinking. Derailment was used with this meaning by Kurt Schneider in 1959.
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  • In psychiatry, derailment (also loosening of association, asyndesis, asyndetic thinking, knight's move thinking, or entgleisen) refers to a pattern of discourse (in speech or writing) that is a sequence of unrelated or only remotely related ideas. The frame of reference often changes from one sentence to the next. Examples: "The next day when I'd be going out you know, I took control, like uh, I put bleach on my hair in California. "—given by Nancy C.
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  • Derailment (thought disorder)
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