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Acute effects of kava, alone or in combination with alcohol, on subjective measures of impairment and intoxication and on cognitive performance

Foo, H. and Lemon, J. (1997). Acute effects of kava, alone or in combination with alcohol, on subjective measures of impairment and intoxication and on cognitive performance. Drug and Alcohol Review,16(2):147-155.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 28 times in Scopus Article | Citations

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Title Acute effects of kava, alone or in combination with alcohol, on subjective measures of impairment and intoxication and on cognitive performance
Author Foo, H.
Lemon, J.
Journal Name Drug and Alcohol Review
Publication Date 1997
Volume Number 16
Issue Number 2
ISSN 0959-5236   (check CDU catalogue  open catalogue search in new window)
Scopus ID 2-s2.0-0031317332
Start Page 147
End Page 155
Total Pages 9
Place of Publication United Kingdom
Publisher Taylor & Francis
HERDC Category C1 - Journal Article (DEST)
Abstract Kava (Piper methysticum) and alcohol were administered either separately or in combination to human subjects. Self-reports of their levels of impairment and intoxication were collected, and performance skills on a number of cognitive and visuomotor tests were determined, before and three times after consumption of the experimental drink. Kava alone had no effect on reported condition. In contrast, alcohol produced marked changes in each of the five subjective measures, all of which were in the direction of lowered ability. The combination of these two substances produced even larger negative changes on these measures. In the cognitive tests, kava produced a decrement in performance on Digit Symbol Coding. Alcohol produced a significant decrease in performance on a divided attention test, which was almost entirely on the peripheral, discontinuous component of the test. The combination of kava and alcohol produced an even greater decrease in performance on this test, and in the same component. The present findings suggest that kava alone has little effect on reported condition and cognitive performance, but appears to potentiate both perceived and measured impairment when combined with alcohol.
DOI http://dx.doi.org/10.1080/09595239700186441   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
 
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