Category generation testing in the search for implicit memory during general anaesthesia |
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| Authors: | MacRae, W. J. Thorp, J. M. Millar, K. |
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| Affiliation: | Monklands and Bellshill Hospitals NHS Trust, Monkscourt Avenue, Airdrie, Lanarkshire ML6 OJS; Department of Psychological Medicine, University Academic Centre, Gartnavel Hospital, 1055 Great Western Road, Glasgow G12 0XH |
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| Abstract: | We gave auditory examples of two semantic categories through headphones to100 surgical patients anaesthetized with propofol and enflurane. Thispresentation was made during certain stages of the procedure, potentiallyassociated with arousal, and during steady-state anaesthesia. Postoperativereview using category generation tests showed successful priming in apre-induction group but no evidence of implicit memory in the anaesthetizedgroups. These results suggest that timing an auditory input to coincidewith surgical stimulation does not increase the probability of retrieval ofinformation by this type of testing. |
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