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Perceptual gains from tACS entrainment are small and often statistically weak

Perceptual gains from tACS entrainment are small and often statistically weak

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tags	ja-picks, question, factual_claims, trade, corroborated, category/factual-claims

Sep 20, 20261 min read

Perceptual gains from tACS entrainment are small and often statistically weak

Evidence

Observations of actual benefits of tACS compared with sham stimulation are rather modest so far. In experiment 1, click detection improved on average by 7 % (at best phase), a difference that did not reach statistical significance. Neuling et al. ( 2012 ) observed a 0.3-dB improvement in tone detection. — Dijk, Pim van, Physiology, Psychoacoustics and…, 4768

Categorization

QUESTION: Whether the modest effect sizes reflect genuine limits of tACS or suboptimal parameter selection is unresolved.
corroborated: 2 independent passages support this claim — Dijk, Pim van, Physiology, Psychoacoustics and…, 4768

Perceptual gains from tACS entrainment are small and often statistically weak
Evidence
Categorization

Backlinks

Perceptual models give robustness to CI evaluations that show high variability
Phase-locked tACS yields only small, often non-significant perceptual gains
Sham tACS participants could not detect whether stimulation was active.
Stimulus-aligned brain oscillations can enhance perceived loudness of auditory input
tACS boosts loudness of click trains temporally coherent with entrained oscillations
tACS might bypass a damaged auditory periphery to deliver envelope information
tACS perceptual benefits so far are modest and often statistically marginal
tACS phase significantly modulates click detection in normal-hearing listeners
Dijk, Pim van — Physiology, Psychoacoustics and Cognition in Normal and Impaired Hearing