Transcranial alternating current stimulation of α but not β frequency

Link – Transcranial alternating current stimulation of α but not β frequency sharpens multiple visual functions. Abstract BACKGROUND: Transcranial alternating current stimulation (tACS) can entrain and enhance cortical oscillatory activity in a frequency-dependent manner. In our previous study (Nakazono et al., 2016), 20 Hz (β) tACS significantly increased excitability of primary motor cortex compared with 10 Hz (α) […]

Machine Learning Techniques for Divergent Thinking EEG Data.


Link – Classifying Creativity: Applying Machine Learning Techniques to Divergent Thinking EEG Data. Abstract Prior research has shown that greater EEG alpha power (8-13 Hz) is characteristic of more creative individuals, and more creative task conditions. The present study investigated the potential for machine learning to classify more and less creative brain states. Participants completed […]

Effect of tACS on persistent delusions in schizophrenia.

Link – Effect of add-on transcranial alternating current stimulation (tACS) on persistent delusions in schizophrenia. Abstract The utility of non-invasive brain stimulation techniques to alleviate resistant delusions in schizophrenia is an under-researched area. In this study, we report the effectiveness of alpha transcranial alternating current stimulation (tACS) targeting the medial prefrontal cortex in ameliorating persistent […]

10 Hz tACS facilitates tactile temporal order judgment.

Link – 10 Hz transcranial alternating current stimulation over posterior parietal cortex facilitates tactile temporal order judgment. Abstract The temporal order judgment (TOJ) task has been widely used to investigate spatial attentional bias and the sensitivity of temporal discrimination during the processing of bilateral tactile information. Previous studies have shown that TOJ is impaired in patients […]

Discordant Alpha-band tACS Affects Connectivity.

Link – Discordant Alpha-band Transcranial Alternating Current Stimulation (tACS) Affects Cortico-cortical and Cortico-cerebellar Connectivity. Abstract Synchronization of oscillatory brain activity is believed to play a critical role in linking distributed neuronal populations into transient functional networks. 10-Hz alternating current stimulation (tACS) was applied over bilateral parietal cortex in a double-blind sham-controlled study to test the […]

tACS at alpha frequency induces a shift of visuospatial attention.

Link – Left parietal tACS at alpha frequency induces a shift of visuospatial attention. Abstract BACKGROUND: Voluntary shifts of visuospatial attention are associated with a lateralization of parieto-occipital alpha power (7-13Hz), i.e. higher power in the hemisphere ipsilateral and lower power contralateral to the locus of attention. Recent noninvasive neuromodulation studies demonstrated that alpha power […]

tACS Stimulation Selectively Induces Inattentional Blindness.

Link – tACS Stimulation at Alpha Frequency Selectively Induces Inattentional Blindness. Abstract Contemporary neurocognitive models implicate alpha oscillations as a top-down mechanism of cortical inhibition, instrumental in the suppression of information that fails to reach conscious visual awareness. This suggests that alpha-band activity may play a key role in the phenomenon of inattentional blindness, however […]

Explaining variability of tACS effects.

Link – Integrating electric field modeling and neuroimaging to explain inter-individual variability of tACS effects. Abstract Transcranial electrical stimulation (tES) of the brain can have variable effects, plausibly driven by individual differences in neuroanatomy and resulting differences of the electric fields inside the brain. Here, we integrated individual simulations of electric fields during tES with […]

Age-Dependent Effect of tACS

Link – Age-Dependent Effect of Transcranial Alternating Current Stimulation on Motor Skill Consolidation. Abstract Transcranial alternating current stimulation (tACS) is the application of subthreshold, sinusoidal current to modulate ongoing brain rhythms related to sensory, motor and cognitive processes. Electrophysiological studies suggested that the effect of tACS applied at an alpha frequency (8-12 Hz) was state-dependent. […]

Abnormal alpha rhythms with preclinical Alzheimer’s neuropathology

Link – Resting-state posterior alpha rhythms are abnormal in subjective memory complaint seniors with preclinical Alzheimer’s neuropathology and high education level: the INSIGHT-preAD study. Abstract Cognitive reserve is present in Alzheimer’s disease (AD) seniors with high education attainment making them clinically resilient to extended brain neuropathology and neurodegeneration. Here, we tested whether subjective memory complaint […]