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Research article summary:
Modulation of cognition and mood following administration of single doses of Ginkgo biloba, ginseng, and a ginkgo/ginseng combination to healthy young adults.
Abstract Extract:
It has previously been demonstrated in separate studies that single doses of Ginkgo biloba, Panax ginseng, and a combination of the two extracts can improve different aspects of cognitive performance in healthy young volunteers. The present study ... (Full abstract text below) Published 2002Apr
in Journal: Physiol Behav
(Language : eng)
Full Pubmed Extract
This information was retrieved, real-time, on your behalf from the public area of the Pubmed website:
1. Physiol Behav.
2002 Apr;75(5):739-51
Modulation of cognition and mood following administration of single doses of Ginkgo biloba, ginseng, and a ginkgo/ginseng combination to healthy young adults.
Kennedy DO, Scholey AB, Wesnes KA
Human Cognitive Neuroscience Unit, Division of Psychology, University of Northumbria, Newcastle-upon-Tyne NE1 8ST, UK.
It has previously been demonstrated in separate studies that single doses of Ginkgo biloba, Panax ginseng, and a combination of the two extracts can improve different aspects of cognitive performance in healthy young volunteers. The present study directly compared the effects of single doses of G. biloba, ginseng, and a product combining the two on aspects of mood and cognitive performance in the same cohort of healthy, young adult volunteers. The study followed a randomised placebo-controlled, double-blind, balanced, cross-over design. Twenty participants received 360 mg of ginkgo, 400 mg of ginseng, 960 mg of a product combining the two extracts, and a matching placebo. Treatment order was dictated by random allocation to a Latin square, with a 7-day wash-out period between treatments. Cognitive testing comprised completion of the Cognitive Drug Research (CDR) computerised assessment battery and two serial subtraction mental arithmetic tasks. Mood was assessed with Bond-Lader visual analogue scales. Following a baseline cognitive assessment, further test sessions took place 1, 2.5, 4, and 6 h after the day's treatment was taken. The results largely supported previous findings. All three treatments were associated with improved secondary memory performance on the CDR battery, with the ginseng condition evincing some improvement in the speed of performing memory tasks and in the accuracy of attentional tasks. Following ginkgo and the ginkgo/ginseng combination performance of both the Serial Threes and Serial Sevens, subtraction tasks was also improved at the later testing sessions. No modulation of the speed of performing attention tasks was evident. Improvements in self-rated mood was also found following ginkgo and to a lesser extent the combination product.
PMID : 12020739 [PubMed - Indexed for MEDLINE]
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Full Author Information
| First Name | LastName | Initials |
| D O | Kennedy | DO |
| A B | Scholey | AB |
| K A | Wesnes | KA |
Affiliation: Human Cognitive Neuroscience Unit, Division of Psychology, University of Northumbria, Newcastle-upon-Tyne NE1 8ST, UK.
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MESH categories and related page links
This article was linked to the MESH categories shown on the left below. The links on the right are related Memletics pages.
Category links from this article:- Adolescent
- Adult
- Affect - drug effects, physiology
- Analysis of Variance
- Attention - drug effects, physiology
- Cognition - drug effects, physiology
- Cross-Over Studies
- Double-Blind Method
- Female
- Ginkgo biloba
- Humans
- Male
- Memory - drug effects, physiology
- Panax
- Plant Extracts - pharmacology
- Reaction Time - drug effects, physiology
- Time Factors
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