Efficiency of temporal order discrimination as an indicator of bradyphrenia in Parkinson's disease: the inspection time loop task
| Autor: | Gayle Christie, Ian J. Deary, John M. Starr, Jennifer Tan, Beverly A. Shipley |
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| Rok vydání: | 2002 |
| Předmět: |
Male
medicine.medical_specialty Parkinson's disease Cognitive Neuroscience Bradyphrenia Experimental and Cognitive Psychology Audiology Neuropsychological Tests Serial Learning Developmental psychology Discrimination Learning Behavioral Neuroscience medicine Reaction Time Humans Attention Backward masking Aged Aged 80 and over Cognitive disorder Cognition Parkinson Disease Time perception Inspection time medicine.disease Frontal lobe Pattern Recognition Visual Mental Recall Time Perception Female medicine.symptom Psychology Psychomotor Performance |
| Zdroj: | Neuropsychologia. 40(8) |
| ISSN: | 0028-3932 |
| Popis: | To investigate the bradyphrenia hypothesis of Parkinson’s disease (PD), 32 patients undertook an information-processing task which measured their efficiency of temporal order discrimination. Their performance was compared with 31 non-PD controls matched on age, sex, years of full-time education and pre-morbid IQ. The task was novel and designed to be sensitive to the clinical phenomenon of bradyphrenia (slowing of mental abilities), in the context of temporal order discrimination without confounding from motor ability deficits. The test (the inspection time loop task; ITloop) required judgements as to the temporal sequence of four single letters. The stimulus duration of the letters in each sequence ranged from 100 to 700 ms. The PD group had a significantly lower mean score on the ITloop task than did controls ( P =0.02). PD patients perform more poorly on temporal order discrimination judgements even when the task makes no motor demands. |
| Databáze: | OpenAIRE |
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