Transcranial alternating current stimulation (tACS): from basic mechanisms towards first applications in psychiatry

O Elyamany, G Leicht, CS Herrmann… - European Archives of …, 2021 - Springer
Transcranial alternating current stimulation (tACS) is a unique form of non-invasive brain
stimulation. Sinusoidal alternating electric currents are delivered to the scalp to affect mostly …

Gamma synchrony: towards a translational biomarker for the treatment-resistant symptoms of schizophrenia

MJ Gandal, JC Edgar, K Klook, SJ Siegel - Neuropharmacology, 2012 - Elsevier
The lack of efficacy for antipsychotics with respect to negative symptoms and cognitive
deficits is a significant obstacle for the treatment of schizophrenia. Developing new drugs to …

Validating γ oscillations and delayed auditory responses as translational biomarkers of autism

MJ Gandal, JC Edgar, RS Ehrlichman, M Mehta… - Biological …, 2010 - Elsevier
BACKGROUND: Difficulty modeling complex behavioral phenotypes in rodents (eg,
language) has hindered pathophysiological investigation and treatment development for …

Dysfunctional prefrontal gamma-band oscillations reflect working memory and other cognitive deficits in schizophrenia

D Senkowski, J Gallinat - Biological psychiatry, 2015 - Elsevier
Impairments in working memory (WM) and other cognitive functions are cardinal
neuropsychological symptoms in schizophrenia (ScZ). The prefrontal cortex (PFC) is …

A review of gamma oscillations in healthy subjects and in cognitive impairment

E Başar - International Journal of Psychophysiology, 2013 - Elsevier
This review describes a wide range of functional correlates of gamma oscillations in whole-
brain work, in neuroethology, sensory–cognitive dynamics, emotion, and cognitive …

Review of delta, theta, alpha, beta, and gamma response oscillations in neuropsychiatric disorders

E Başar, B Güntekin - Supplements to Clinical neurophysiology, 2013 - Elsevier
Method and concepts of brain oscillations pervade the neuroscience literature, especially in
cognitive processes. Electrophysiological changes in patients with cognitive impairment will …

Increased resting-state gamma-band connectivity in first-episode schizophrenia

C Andreou, G Nolte, G Leicht, N Polomac… - Schizophrenia …, 2015 - academic.oup.com
Background: Schizophrenia has long been suggested to represent a disorder with
prominent neural dysconnectivity. Gamma-band oscillations are highly relevant in this …

Long-range synchrony of gamma oscillations and auditory hallucination symptoms in schizophrenia

C Mulert, V Kirsch, R Pascual-Marqui… - International Journal of …, 2011 - Elsevier
Phase locking in the gamma-band range has been shown to be diminished in patients with
schizophrenia. Moreover, there have been reports of positive correlations between phase …

Emotion regulation by cognitive reappraisal—the role of frontal theta oscillations

M Ertl, M Hildebrandt, K Ourina, G Leicht, C Mulert - NeuroImage, 2013 - Elsevier
The regulation of emotion by cognitive reappraisal has attracted a lot of attention over the
last decade. Studies using functional magnetic resonance imaging (fMRI) revealed a wide …

Reduced natural oscillatory frequency of frontal thalamocortical circuits in schizophrenia

F Ferrarelli, S Sarasso, Y Guller… - Archives of general …, 2012 - jamanetwork.com
Context Converging evidence from electrophysiological studies suggests that in individuals
with schizophrenia, electroencephalographic frontal fast oscillations are reduced. It is still …