Central executive function in working memory: event-related brain potential studies
| Autor: | Charlene Pisio, Donald Schopflocher, Andre Francois, Ivan Kiss |
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| Rok vydání: | 1998 |
| Předmět: |
Adult
Male genetic structures Cognitive Neuroscience Interference theory Experimental and Cognitive Psychology behavioral disciplines and activities Behavioral Neuroscience Event-related potential Humans Attention Set (psychology) Evoked Potentials Analysis of Variance Working memory Long-term memory Memory rehearsal Cognition Electroencephalography Memory Short-Term Female Baddeley's model of working memory Psychology Neuroscience psychological phenomena and processes Photic Stimulation Psychomotor Performance Cognitive psychology |
| Zdroj: | Brain research. Cognitive brain research. 6(4) |
| ISSN: | 0926-6410 |
| Popis: | Visual event-related brain potentials (ERPs) were recorded during a running memory task, in which subjects dynamically revised (updated) memory stores, and a control task not requiring maintenance of a changing memory set but utilising identical stimulus sequences and response patterns. In three experiments, ERPs associated with cognitive processes were isolated through subtraction of control potentials from ERPs acquired during updating. We provide evidence that resultant difference ERPs primarily reflected processing or processing control, as opposed to storage. These findings are consistent both with Baddeley's working memory model, which postulates separate storage and control modules, and Morris and Jones' behavioral evidence for specific involvement of Baddeley's central executive in memory updating. In addition, our ERP data indicate that updating requires processes not suggested by Morris and Jones' behavioural studies; possibly control processes engaged to reduce the effects of proactive interference. Overall the data are consistent with the discovery of an ERP correlate of central executive activity. |
| Databáze: | OpenAIRE |
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