The influence of fluid intelligence, executive functions and premorbid intelligence on memory in frontal patients

Chan, Edgar, MacPherson, Sarah E, Bozzali, Marco, Shallice, Tim and Cipolotti, Lisa (2018) The influence of fluid intelligence, executive functions and premorbid intelligence on memory in frontal patients. Frontiers in Psychology, 9 (926). p. 926. ISSN 1664-1078

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Abstract

It is commonly thought that memory deficits in frontal patients are a result of impairments in executive functions which impact upon storage and retrieval processes. Yet, few studies have specifically examined the relationship between memory performance and executive functions in frontal patients. Furthermore, the contribution of more general cognitive processes such as fluid intelligence and demographic factors such as age, education, and premorbid intelligence has not been considered. Our study examined the relationship between recall and recognition memory and performance on measures of fluid intelligence, executive functions and premorbid intelligence in 39 frontal patients and 46 healthy controls. Recall memory impairments in frontal patients were strongly correlated with fluid intelligence, executive functions and premorbid intelligence. These factors were all found to be independent predictors of recall performance, with fluid intelligence being the strongest predictor. In contrast, recognition memory impairments were not related to any of these factors. Furthermore, age and education were not significantly correlated with either recall or recognition memory measures. Our findings show that recall memory in frontal patients was related to fluid intelligence, executive functions and premorbid intelligence. In contrast, recognition memory was not. These findings suggest that recall and recognition memory deficits following frontal injury arise from separable cognitive factors. Recognition memory tests may be more useful when assessing memory functions in frontal patients.

Item Type: Article
Keywords: frontal lobes, recall, recognition, memory intelligence, executive functions
Schools and Departments: Brighton and Sussex Medical School > Neuroscience
Subjects: R Medicine > RC Internal medicine > RC0321 Neurosciences. Biological psychiatry. Neuropsychiatry > RC0346 Neurology. Diseases of the nervous system Including speech disorders
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Depositing User: Patricia Butler
Date Deposited: 11 Jul 2018 08:01
Last Modified: 11 Jul 2018 08:02
URI: http://srodev.sussex.ac.uk/id/eprint/77065

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