ArticleBrain and behavior2021
α-tACS over the somatosensory cortex enhances tactile spatial discrimination in healthy subjects with low alpha activity.
Article in Brain and behavior, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 17 citations in OpenAlex.
- A grating orientation task with controlled dome elevation speed and contact force: stimulus conditions and day-to-day reliability.MethodsX · 2026Article
- Effects of tDCS and tACS on operant tactile training: investigating individual differences in neuromodulation efficacy.Experimental brain research · 2026Article
- Neuromodulation strategies in postburn care for pain rehabilitation and scar remodelling.Communications medicine · 2026Review
- Modulating somatosensory alpha oscillations using short-period transcranial alternating current stimulation.Imaging neuroscience (Cambridge, Mass.) · 2025Article
- Differential modulation of the cortical alpha rhythm and activation of distinct neural networks during tactile perception training by learners and non-learners.Frontiers in neuroscience · 2025Article
- The role of the somatosensory system in the feeling of emotions: a neurostimulation study.Social cognitive and affective neuroscience · 2024Article
- Enhancing touch sensibility with sensory electrical stimulation and sensory retraining.Journal of neuroengineering and rehabilitation · 2024Article
- Long-term gamma transcranial alternating current stimulation improves the memory function of mice with Alzheimer's disease.Frontiers in aging neuroscience · 2022Article
- Changes in excitability and GABAergic neuronal activity of the primary somatosensory cortex after motor learning.Frontiers in neuroscience · 2022Article
- α-tACS over the somatosensory cortex enhances tactile spatial discrimination in healthy subjects with low alpha activity.Brain and behavior · 2021Article
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7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionSpontaneous oscillations in the somatosensory cortex, especially of the alpha (8 - 14 Hz) and gamma (60 - 80 Hz) frequencies, affect tactile perception; moreover, these oscillations can be selectively modulated by frequency-matched transcranial alternating current stimulation (tACS) on the basis of ongoing oscillatory brain activity. To examine whether tACS can actually improve tactile perception via alpha and gamma modulation, we measured the effects of 10-Hz and 70-Hz tACS (α- and γ-tACS) on the left somatosensory cortex on right-finger tactile spatial orientation discrimination, and the associations between performance changes and individual alpha and gamma activities.
methodsFifteen neurologically healthy subjects were recruited into this study. Electroencephalography (EEG) was performed before the first day, to assess the normal alpha- and gamma-activity levels. A grating orientation discrimination task was performed before and during 10-Hz and 70-Hz tACS.
resultsThe 10-Hz tACS protocol decreased the grating orientation discrimination threshold, primarily in subjects with low alpha event-related synchronization (ERS). In contrast, the 70-Hz tACS had no effect on the grating orientation discrimination threshold.
conclusionsThis study showed that 10-Hz tACS can improve tactile orientation discrimination in subjects with low alpha activity. Alpha-frequency tACS may help identify the contributions of these oscillations to other neurophysiological and pathological processes.
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