Docosahexaenoic acid-rich fish oil modulates the cerebral hemodynamic response to cognitive tasks in healthy young adults

Jackson, Philippa, Reay, Jonathon, Scholey, Andrew and Kennedy, David (2012) Docosahexaenoic acid-rich fish oil modulates the cerebral hemodynamic response to cognitive tasks in healthy young adults. Biological Psychology, 89 (1). pp. 183-190. ISSN 0301-0511

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Official URL: http://dx.doi.org/10.1016/j.biopsycho.2011.10.006

Abstract

A number of recent studies have assessed the impact of dietary omega-3 polyunsaturated fatty acids (n-3 PUFAs) on behavioral outcomes; however, very little attention has been given to their impact upon brain function in physiological terms. Sixty-five healthy adults aged 18-29yrs took part in this double-blind, placebo-controlled study assessing the effects of 12 weeks daily dietary supplementation with docosahexaenoic acid-rich fish oil (1g, 2g) or placebo (olive oil). Relative changes in the concentration of oxyhemoglobin and deoxyhemoglobin were assessed in the prefrontal cortex using near-infrared spectroscopy during performance of nine computerized cognitive tasks. Supplementation with both doses of fish oil, in comparison with placebo, resulted in significantly increased concentrations of oxyhemoglobin and total levels of hemoglobin, indicative of increased cerebral blood flow, during the cognitive tasks. Changes in hemodynamic response to tasks were not accompanied by consistent changes in cognitive performance.

Item Type: Article
Uncontrolled Keywords: docosahexaenoic acid, near-infrared spectroscopy, cognitive function, healthy adults
Subjects: B900 Others in Subjects allied to Medicine
C800 Psychology
Department: Faculties > Health and Life Sciences > School of Life Sciences > Psychology
Depositing User: Ay Okpokam
Date Deposited: 19 Dec 2011 11:42
Last Modified: 10 Aug 2015 11:36
URI: http://nrl.northumbria.ac.uk/id/eprint/4236

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