Background. Transcranial alternating current stimulation (tACS) is a relatively recent method suited to noninvasively modulate brain oscillations. Technically the method is similar but not identical to transcranial direct current stimulation (tDCS). While decades of research in animals and humans has revealed the main physiological mechanisms of tDCS, less is known about the physiological mecha...

Abstract Predicting the onset of upcoming events and objects in environment enables optimisation action perception. Studies on temporal prediction non-rhythmic stimulation provide evidence that low-frequency neural oscillations underlie processes.1 By adjusting their phase to structure predictable environmental stimuli, time point relevant information might be predicted, which would facilitate ...

Brain oscillations of different frequencies have been associated with a variety of cognitive functions. Convincing evidence supporting those associations has been provided by studies using intracranial stimulation, pharmacological interventions and lesion studies. The emergence of novel non-invasive brain stimulation techniques like repetitive transcranial magnetic stimulation (rTMS) and transc...

Transcranial Electrical Stimulation: Transcranial Direct Current Stimulation (tDCS), Transcranial Alternating Current Stimulation (tACS), Transcranial Pulsed Current Stimulation (tPCS), andTranscranial Random Noise Stimulation (tRNS) Ingrid Moreno-Duarte, Nigel Gebodh, Pedro Schestatsky, Berkan Guleyupoglu, Davide Reato, Marom Bikson, and Felipe Fregni Laboratory of Neuromodulation, Department ...

Tinnitus is the perception of a sound in the absence of an external sound stimulus. This phantom sound has been related to plastic changes and hyperactivity in the auditory cortex. Different neuromodulation techniques such as transcranial magnetic stimulation and transcranial direct current stimulation (tDCS) have been used in an attempt to modify local and distant neuroplasticity as to reduce ...

During the past .. years, non-invasive .rain stimulation has .ecome an emerging .eld in clinical neuroscience due to its capability to transiently modulate corticospinal excitability, motor and cognitive functions. .hereas transcranial magnetic stimulation has .een used e.tensively since more than t.o decades ago as a potential .neuromodulator., transcranial current stimulation .tCS. has more r...

Transcranial alternating current stimulation (tACS) can entrain ongoing brain oscillations and modulate the motor system in a frequency-dependent manner. Recent animal studies have demonstrated that the phase of a sinusoidal current also has an important role in modulation of neuronal activity. However, the phase effects of tACS on the human motor system are largely unknown. Here, we systematic...

Transcranial alternating current stimulation is a novel method that allows application of sinusoidal currents to modulate brain oscillations and cognitive processes. Studies in humans have demonstrated transcranial alternating current stimulation (tACS) after-effects following stimulation durations in the range of minutes. However, such after-effects are absent in animal studies using much shor...