A clinical study on the effect of a probiotic formulation on memory, learning, anxiety, and mood

Toulany, B. S. (2016). A clinical study on the effect of a probiotic formulation on memory, learning, anxiety, and mood. https://scholar.acadiau.ca/islandora/object/theses:1485

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Details:

Title

A clinical study on the effect of a probiotic formulation on memory, learning, anxiety, and mood

Author
Toulany, Billy S.
Call Number

LE3 .A278 2016

Date

2016

Supervisor

Potter, Susan

Degree Grantor

Acadia University

Degree Name

Bachelor of Science

Degree Level

Honours

Discipline

Psychology

Affiliation

Psychology

Abstract

Animal studies have shown that probiotics influence brain functioning via the gut-brain axis, exerting positive effects on anxiety and behaviour. The aim of the present study was to extend these findings to humans, in a clinical trial exploring the effects of probiotics on anxiety, mood, and memory in adults. Participants (n=46) consumed either a placebo or probiotic supplement for five weeks. Mood, anxiety, and memory were assessed pre-and post-intervention, using a variety of anxiety and mood measures, as well as verbal and visual memory tasks. In this small sample, no significant differences between the probiotic and placebo group were found. Both groups significantly improved on the anxiety and mood measures. There was no change in memory. A powerful placebo response likely contributed to the inability to detect a probiotic effect. Due to the absence of a probiotic effect, the relationship between memory and anxiety could not be quantified.

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The author retains copyright in this thesis. Any substantial copying or any other actions that exceed fair dealing or other exceptions in the Copyright Act require the permission of the author.

Permanent Link

https://scholar.acadiau.ca/islandora/object/theses:1485

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