Results 21 to 30 of about 78,568 (253)

Personalized alpha-tACS targeting left posterior parietal cortex modulates visuo-spatial attention and posterior evoked EEG activity

bioRxiv, 2023
Background Covert visuo-spatial attention is marked by the anticipatory lateralization of neuronal alpha activity in the posterior parietal cortex.
J. Radecke, M. Fiene, J. Misselhorn, C. Herrmann, A. Engel, C. Wolters, T. Schneider   +6 more
semanticscholar   +1 more source

In vivo phase-dependent enhancement and suppression of human brain oscillations by transcranial alternating current stimulation (tACS)

NeuroImage, 2023
Transcranial alternating current stimulation (tACS) can influence perception and behavior, with recent evidence also highlighting its potential impact in clinical settings, but its underlying mechanisms are poorly understood.
David Haslacher, A. Narang, R. Sokoliuk, Alessia Cavallo, Philipp Reber, Khaled Nasr, E. Santarnecchi, S. Soekadar   +7 more
semanticscholar   +1 more source

Transit Amplifying Cells (TACs): a still not fully understood cell population

Frontiers in Bioengineering and Biotechnology, 2023
Maintenance of tissue homeostasis and tissue regeneration after an insult are essential functions of adult stem cells (SCs). In adult tissues, SCs proliferate at a very slow rate within “stem cell niches”, but, during tissue development and regeneration,
R. Cancedda, M. Mastrogiacomo
semanticscholar   +1 more source

Transcranial Alternating Current Stimulation (tACS) and Its Role in Schizophrenia: A Scoping Review

Clinical Psychopharmacology and Neuroscience, 2023
Transcranial alternating current stimulation (tACS) may modulate neuronal oscillations by applying sinusoidal alternating current, thereby alleviating associated symptoms in schizophrenia.
Harsh Pathak, V. Sreeraj, G. Venkatasubramanian   +2 more
semanticscholar   +1 more source

Home-based transcranial alternating current stimulation (tACS) in Alzheimer’s disease: rationale and study design

Alzheimer's Research & Therapy, 2023
Background Gamma (γ) brain oscillations are dysregulated in Alzheimer’s disease (AD) and can be modulated using transcranial alternating stimulation (tACS).
D. Altomare, A. Benussi, V. Cantoni, E. Premi, Jasmine Rivolta, C. Cupidi, A. Martorana, E. Santarnecchi, Alessandro Padovani, Giacomo Koch, B. Borroni   +10 more
semanticscholar   +1 more source

Nonequivalent After-Effects of Alternating Current Stimulation on Motor Cortex Oscillation and Inhibition: Simulation and Experimental Study

Brain Sciences, 2022
The effects of transcranial alternating current stimulation (tACS) frequency on brain oscillations and cortical excitability are still controversial.
Makoto Suzuki, Satoshi Tanaka, Jose Gomez-Tames, Takuhiro Okabe, Kilchoon Cho, Naoki Iso, Akimasa Hirata   +6 more
doaj   +1 more source

Phase-specific manipulation of rhythmic brain activity by transcranial alternating current stimulation

Brain Stimulation, 2020
Background: Oscillatory phase has been proposed as a key parameter defining the spatiotemporal structure of neural activity. To enhance our understanding of brain rhythms and improve clinical outcomes in pathological conditions, modulation of neural ...
Marina Fiene, Bettina C. Schwab, Jonas Misselhorn, Christoph S. Herrmann, Till R. Schneider, Andreas K. Engel   +5 more
doaj   +1 more source

Impact of multisession 40Hz tACS on hippocampal perfusion in patients with Alzheimer’s disease

Alzheimer's Research & Therapy, 2021
Alzheimer’s disease (AD) is associated with alterations in cortical perfusion that correlate with cognitive impairment. Recently, neural activity in the gamma band has been identified as a driver of arteriolar vasomotion while, on the other hand, gamma ...
G. Sprugnoli, F. Munsch, D. Cappon, Rachel Paciorek, Joanna Macone, A. Connor, G. El Fakhri, R. Salvador, G. Ruffini, K. Donohoe, M. Shafi, D. Press, D. Alsop, Alvaro Pascual Leone, E. Santarnecchi   +14 more
semanticscholar   +1 more source

Parietal alpha tACS shows inconsistent effects on visuospatial attention.

PLoS ONE, 2021
Transcranial alternating current stimulation (tACS) is a popular technique that has been used for manipulating brain oscillations and inferring causality regarding the brain-behaviour relationship. Although it is a promising tool, the variability of tACS
Andra Coldea, Stephanie Morand, Domenica Veniero, Monika Harvey, Gregor Thut   +4 more
doaj   +1 more source

Enhancing memory capacity by experimentally slowing theta frequency oscillations using combined EEG-tACS

Scientific Reports, 2022
The coupling of gamma oscillation (~ 40+ Hz) amplitude to the phase of ongoing theta (~ 6 Hz) oscillations has been proposed to be directly relevant for memory performance.
Tuba Aktürk, T. de Graaf, B. Güntekin, L. Hanoglu, A. Sack   +4 more
semanticscholar   +1 more source