loose associations
A thought disorder characterized by illogical connections between ideas, resulting in speech that lacks coherent progression from one topic to another.
Full Definition
Loose associations, also known as derailment, is a formal thought disorder where the logical connections between ideas are absent or significantly impaired. Unlike tangentiality, where there is an initial relationship to the topic, loose associations involve abrupt shifts to completely unrelated subjects without apparent logical progression. This symptom is most commonly observed in schizophrenia but can also occur in manic episodes and other psychotic states. The degree of loosening can range from subtle derailments to completely incoherent speech, and severity often correlates with overall illness severity and functional impairment.
Usage
Usage note: Provide specific examples in documentation to illustrate the lack of logical connections.
In Context
- "His speech demonstrated loose associations, jumping from discussing medication to childhood memories to weather patterns." — Mental status examination
- "The severity of loose associations made it difficult to obtain a coherent history during the intake interview." — Clinical assessment