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. Author manuscript; available in PMC: 2020 Feb 1.
Published in final edited form as: Int J Geriatr Psychiatry. 2018 Dec 10;34(2):369–377. doi: 10.1002/gps.5039

Figure 2.

Figure 2.

Reaction times of the experimental and control groups for both the congruent and the incongruent conditions of the flanker test. Paired-samples t-tests were performed to detect any pre-to-post reaction time differences after real or sham photobiomodulation (PBM) in the experimental and control group, respectively. Repeated measures analyses of variance were performed to investigate the group (experimental, control) × time (pre-PBM, post-PBM) interaction. The error bars represent one standard error.