Brief, daily meditation enhances attention, memory, mood, and emotional regulation in non-experienced meditators.
Level 2 - randomized trial
Individual randomized controlled trial
PubMed 30153464 · doi:10.1016/j.bbr.2018.08.023
What was done
Meditation-naïve adults aged 18–45 were randomized to either a 13-minute daily guided meditation session or a 13-minute daily podcast listening session (active control) for 8 weeks. Researchers assessed mood, prefrontal and hippocampal cognitive functions (attention, working memory, recognition memory), baseline cortisol levels, and emotional regulation using the Trier Social Stress Test (TSST) across 4 and 8 weeks.
What was found
The abstract reports no numerical values, effect sizes, or p-values. Relative to the podcast control group, 8 weeks—but not 4 weeks—of daily 13-minute meditation decreased negative mood state, enhanced attention, working memory, and recognition memory, and decreased state anxiety scores on the TSST. Emotional regulation improvements were more strongly linked to affective improvements than cognitive changes.
Why it matters
This study suggests that brief, practical daily meditation sessions (13 minutes) can produce measurable cognitive and emotional benefits in novices, establishing an 8-week threshold for these effects.
Limits
The abstract omits sample size, compliance rates, baseline cortisol findings, and all quantitative effect sizes and confidence intervals. Long-term maintenance beyond the 8-week intervention was not evaluated.