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Perseveration in brain-injured adults
Journal of Communication Disorders
|June 1, 1976
Summary
Perseverative responses are more common in brain-injured individuals, particularly those with aphasia following a recent cerebrovascular accident (CVA). This study identified two types: repetitious and continuous perseveration in brain injury patients.
Area of Science:
- Neuroscience
- Neurology
- Cognitive Psychology
Background:
- Perseveration is recognized as a symptom of central nervous system (CNS) dysfunction.
- Objective data on the nature and frequency of perseveration are limited.
Purpose of the Study:
- To investigate the occurrence and characteristics of perseverative responses in brain-injured subjects.
- To identify factors associated with increased perseveration.
Main Methods:
- Comparison of perseverative responses between brain-injured and normal subjects.
- Classification of perseveration into repetitious and continuous types based on behavioral definitions.
- Analysis of patient history, including cerebrovascular accident (CVA) and aphasia.
Main Results:
- Brain-injured subjects exhibited significantly more perseverative responses than normal subjects.
- Individuals who experienced a CVA less than six months prior, resulting in aphasia, were most prone to perseveration.
- Repetitious perseveration was observed more frequently than continuous perseveration.
Conclusions:
- Perseveration is a quantifiable indicator of CNS dysfunction.
- Specific patient profiles, such as recent CVA with aphasia, are associated with a higher likelihood of perseveration.
- Behavioral definitions enable reliable differentiation between types of perseveration.