Fig. 3.

Cognitive effects of 1064-nm laser treatment on attention and memory in older adults with subjective memory complaint (n=12). The psychomotor vigilance test (PVT) and delayed match-to-sample test (DMS) were conducted immediately before the first laser treatment (Baseline: week 1), immediately after the first laser treatment (Acute: week 1), and on subsequent weeks after additional laser treatments (Chronic: average of weeks 2, 3, 4, 5). a Reaction time (in msec) and b number of lapses (trials in which the subject failed to respond within 500 msec of the stimulus) were recorded for the PVT; c number of correct responses were recorded for the DMS. Bars show group means plus standard errors