[abstract] DIVERS COMPLAINING OF FORGETFULNESS OR LOSS OF CONCENTRATION SHOW POORER PERFORMANCE ON OBJECTIVE NEUROPSYCHOLOGICAL TESTS WHEN COMPARED TO A NON-COMPLAINING DIVER AND OFFSHORE WORKER GROUP: THE ELTHI DIVING STUDY

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[abstract] DIVERS COMPLAINING OF FORGETFULNESS OR LOSS OF CONCENTRATION SHOW POORER PERFORMANCE ON OBJECTIVE NEUROPSYCHOLOGICAL TESTS WHEN COMPARED TO A NON-COMPLAINING DIVER AND OFFSHORE WORKER GROUP: THE ELTHI DIVING STUDY

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Title: [abstract] DIVERS COMPLAINING OF FORGETFULNESS OR LOSS OF CONCENTRATION SHOW POORER PERFORMANCE ON OBJECTIVE NEUROPSYCHOLOGICAL TESTS WHEN COMPARED TO A NON-COMPLAINING DIVER AND OFFSHORE WORKER GROUP: THE ELTHI DIVING STUDY
Author: Taylor, CL; Adie, WR; Macdiarmid, JI; Ross, JA; Crawford, JR; Osman, LM; Watt, SJ; Lawson, A
Abstract: INTRODUCTION: The ELTHI Diving Study showed that significantly more divers (18percent of N=1540) compared to non-diving offshore workers (6percent of N=1035) report "forgetfulness or loss of concentration" in a postal questionnaire (Macdiarmid et al. 2001). One explanation could be that divers over report memory/concentration problems. This study investigated whether complaint of "forgetfulness or loss of concentration" was related to objective neuropsychological test performance. METHODS: 334 subjects from the ELTHI Diving Study sample were classified into two age matched groups based on responses to the "forgetfulness or loss of concentration" questionnaire item. The design of the ELTHI study was such that the "Forgetful" group consisted only of divers while the "Not Forgetful" group consisted of both divers and offshore workers. Groups were compared for between group differences on a battery of computerized and non-computerized neuropsychological tests. RESULTS: Divers reporting "forgetfulness or loss of concentration" on the questionnaire had significantly lower performance on tests of memory and concentration, after adjusting for differences in IQ (p less than 0.05) from the National Adult Reading Test. The "Forgetful" divers performed significantly worse on immediate (p less than 0.001) and delayed (p less than 0.001) recall of short stories in the Logical Memory test, and on immediate (p less than 0.05) and delayed recall of word lists in the California Verbal Learning Task II (p less than 0.01). In addition the "Forgetful" divers showed significantly worse performance on the spatial recognition memory task from the Cambridge Neuropsychological Test Automated Battery (p less than 0.05) indicating memory effects in both verbal and visual modalities. Finally "Forgetful" divers showed significantly poorer performance on a visual concentration test (p less than 0.01) from the same battery. CONCLUSIONS: These results confirm that complaint of ""forgetfulness or loss of concentration"" by divers in the ELTHI Diving Study questionnaire is supported by significantly poorer performance on objective tests of memory and concentration. Diving, Memory, Neuropsychological Testing
Description: Undersea and Hyperbaric Medical Society, Inc. (http://www.uhms.org )
URI: http://archive.rubicon-foundation.org/1267
Date: 2003

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  • UHMS Meeting Abstracts
    This is a collection of the published abstracts from the Undersea and Hyperbaric Medical Society (UHMS) annual meetings.

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