tACS modulates cortical control of muscle activities during gait.

Link – Gait-combined transcranial alternating current stimulation modulates cortical control of muscle activities during gait. Abstract Non-invasive brain stimulation has been of interest as a therapeutic tool to modulate cortical excitability. However, there is little evidence that oscillatory brain stimulation can modulate the cortical control of muscle activities during gait, which can be assessed using […]

Modulation of Conflict Processing by Theta-Range tACS

Link – Modulation of Conflict Processing by Theta-Range tACS over the Dorsolateral Prefrontal Cortex. Neural Plast. 2019;2019:6747049 Authors: Lehr A, Henneberg N, Nigam T, Paulus W, Antal A Abstract Behavioral response conflict arises in the color-word Stroop task and triggers the cognitive control network. Midfrontal theta-band oscillations correlate with adaptive control mechanisms during and after […]

Posttraining tACS Impairs Motor Consolidation

Link – Posttraining Alpha Transcranial Alternating Current Stimulation Impairs Motor Consolidation in Elderly People. Abstract The retention of a new sequential motor skill relies on repeated practice and subsequent consolidation in the absence of active skill practice. While the early phase of skill acquisition remains relatively unaffected in older adults, posttraining consolidation appears to be […]

tACS on endogenous but not exogenous visual-spatial attention.

Link – Hemisphere-specific, differential effects of lateralized, occipital-parietal α- versus γ-tACS on endogenous but not exogenous visual-spatial attention. Abstract Orienting spatial attention has been associated with interhemispheric asymmetry of power in the α- and γ-band. Specifically, increased α-power has been linked to the inhibition of unattended sensory streams (e.g. the unattended visual field), while increased […]

Need to Revise Envelope tACS Methods.

Link – Lacking Effects of Envelope Transcranial Alternating Current Stimulation Indicate the Need to Revise Envelope Transcranial Alternating Current Stimulation Methods. Abstract In recent years, several studies have reported beneficial effects of transcranial alternating current stimulation (tACS) in experiments regarding sound and speech perception. A new development in this field is envelope-tACS: The goal of […]

Reduction of somatosensory functional connectivity by tACS

Link – Reduction of somatosensory functional connectivity by transcranial alternating current stimulation at endogenous mu-frequency. Abstract Alpha, the most prominent human brain rhythm, might reflect a mechanism of functional inhibition for gating neural processing. This concept has been derived predominantly from local measures of inhibition, while large-scale network mechanisms to guide information flow are largely […]

Utilizing tACS and fNIRS to Investigate Human Sensory Adaptation.

Link – Utilizing Transcranial Alternating Current Stimulation and Functional Neuroimaging to Investigate Human Sensory Adaptation. Abstract Sensory adaptation is the reduction of neural activity after repeated exposure to a stimulus. In a recent study, Kar et al. (2019) found that implementation of 10Hz-tACS to the human middle temporal cortex (hMT+) decreased sensory adaptation and increased […]

tACSfor bimanual movement performance.

Link – Effects of stimulating the supplementary motor area with a transcranial alternating current for bimanual movement performance. Abstract Transcranial alternating current stimulation (tACS) can regulate the frequency of neuronal activity in the cerebral cortex. Beta (β) activity in the supplementary motor area (SMA) is involved in motor planning and maintenance while gamma (γ) activity […]

Gamma tACS applied during the acquisition of a novel motor skill.

Link – Cerebellar transcranial alternating current stimulation in the gamma range applied during the acquisition of a novel motor skill. Abstract The development of novel strategies to augment motor training success is of great interest for healthy persons and neurological patients. A promising approach is the combination of training with transcranial electric stimulation. However, limited […]

Intermittent theta-burst stimulation in depression

fNIRS

Link – Modulation of the prefrontal blood oxygenation response to intermittent theta-burst stimulation in depression: A sham-controlled study with functional near-infrared spectroscopy. Abstract OBJECTIVE: To better understand the neural mechanisms behind the effect of intermittent theta-burst stimulation (iTBS), we investigated how the prefrontal blood oxygenation response measured by changes in oxygenated haemoglobin (oxy-Hb) was modulated […]