Mindfulness Induces Changes in Anterior Alpha Asymmetry in Healthy Older Adults

Benjamin Isbel; Jim Lagopoulos; Daniel F Hermens; Mathew J Summers

doi:10.1007/s12671-019-01106-w

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Mindfulness Induces Changes in Anterior Alpha Asymmetry in Healthy Older Adults

Journal article

Peer reviewed

Mindfulness Induces Changes in Anterior Alpha Asymmetry in Healthy Older Adults

Benjamin Isbel, Jim Lagopoulos, Daniel F Hermens and Mathew J Summers

Mindfulness, Vol.10(7), pp.1381-1394

2019

DOI: https://doi.org/10.1007/s12671-019-01106-w

Appears in Thompson Institute Research Collection

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Abstract

Mindfulness

alpha asymmetry

attention

affect

ageing

Healthy Brain Ageing

Thompson Institute Special Collection

UniSC Diversity Area - Life Stages

Objectives: Anterior alpha asymmetry is an EEG measure of relative left- or right-sided prefrontal cortical activity that has been associated with affective style, such that greater relative left-sided activity is associated with positive affect and approach-related behaviours. While mindfulness has been shown to enhance attention and affect, here we investigate the underlying neurobiological changes supporting these outcomes by assessing anterior alpha asymmetry. Methods: A longitudinal RCT was conducted to investigate the effect of an 8-week mindfulness training (MT) intervention on anterior alpha asymmetry and affect in a group of healthy adults aged over 60 years (n= 41). An active control computer-based attention training (CT) program (n= 26) designed to activate similar attentional components to mindfulness was used to determine if outcomes resulted from attention training or mindfulness-specific factors. The Sustained Attention to Response Task was used to assess attentional performance, while a breath counting task was used to classify mindfulness participants into high (MT-HIGH; n= 19) and low (MT-LOW; n= 22) proficiency groups. Results: While all groups displayed improved attentional performance, only the MT-HIGH and MT-LOW groups showed significant increases in positive affect as measured by the Positive and Negative Affect Schedule. The MT-HIGH group showed significantly increased relative left-sided activity at both Fp1/Fp2 and F3/F4 electrode pairs, while no significant changes were observed in the MT-LOW and CT groups. Conclusions: These results suggest that 8 weeks of mindfulness training is capable of inducing changes in resting anterior alpha asymmetry, but these results are dependent upon the level of proficiency achieved.

Details

Title: Mindfulness Induces Changes in Anterior Alpha Asymmetry in Healthy Older Adults
Authors: Benjamin Isbel (Corresponding Author) - University of the Sunshine Coast - School of Social Sciences
Jim Lagopoulos (Author) - University of the Sunshine Coast - School of Social Sciences
Daniel F Hermens (Author) - University of the Sunshine Coast - School of Social Sciences
Mathew J Summers (Author) - University of the Sunshine Coast - School of Social Sciences
Publication details: Mindfulness, Vol.10(7), pp.1381-1394
Publisher: Springer New York LLC
Date published: 2019
DOI: 10.1007/s12671-019-01106-w
ISSN: 1868-8527; 1868-8527
Organisation Unit: School of Health; School of Social Sciences - Legacy; Thompson Institute; School of Health - Psychology; School of Health and Behavioural Sciences - Legacy
Language: English
Record Identifier: 99451450102621
Output Type: Journal article

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