Can visual cortex non-invasive brain stimulation improve normal visual function? A systematic review and meta-analysis.

Front Neurosci · 2023 · PMC10017867 · PMID 36937668

Europe PMC DOI

hedged sentence

0.1580

closest p · 3.2× alpha

0.1580

boldest claim

The sentences

failed to reach statistical significancep = 0.158not close (p > 0.1)

There was a trend favoring an effect of a-tDCS stimulation on contrast sensitivity as per the main analysis, but this failed to reach statistical significance (Hedges’s g = 0.262, 95% CI: −0.101 to 0.625, p = 0.158). 3.2.1.3.

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