Safety of 5 kHz tACS

Authors: Chaieb, L., Antal, A., Pisoni, A., Saiote, C., Opitz, A., Ambrus, G.G., Focke, N. and Paulus, W.

Journal: Brain Stimulation

Volume: 7

Issue: 1

Pages: 92-96

eISSN: 1876-4754

ISSN: 1935-861X

DOI: 10.1016/j.brs.2013.08.004

Abstract:

Sinusoidal transcranial alternating current stimulation (tACS) at 5 kHz applied for 10 min at 1 mA intensity over the hand area of the primary motor cortex (M1) results in sustained changes in cortical excitability as previously demonstrated. Objective Here we have assessed safety aspects of this stimulation method by measuring neuron-specific enolase (NSE) levels, examining electroencephalogram (EEG) traces and analyzing anatomical data by using magnetic resonance imaging (MRI). Methods Altogether 18 healthy volunteers participated in the study. tACS was applied at 5 kHz for a duration of 10 min over the left M1 at an intensity of 1 mA. Results After stimulation no significant changes were detected in NSE levels, no structural alterations were observed in the anatomical scans and no pathological changes were found in the EEG recordings. Conclusions Our data imply that the application of tACS is safe at least within these parameters and with these applied protocols. © 2014 Elsevier Inc. All rights reserved.

Source: Scopus

Safety of 5 kHz tACS.

Authors: Chaieb, L., Antal, A., Pisoni, A., Saiote, C., Opitz, A., Ambrus, G.G., Focke, N. and Paulus, W.

Journal: Brain Stimul

Volume: 7

Issue: 1

Pages: 92-96

eISSN: 1876-4754

DOI: 10.1016/j.brs.2013.08.004

Abstract:

BACKGROUND: Sinusoidal transcranial alternating current stimulation (tACS) at 5 kHz applied for 10 min at 1 mA intensity over the hand area of the primary motor cortex (M1) results in sustained changes in cortical excitability as previously demonstrated. OBJECTIVE: Here we have assessed safety aspects of this stimulation method by measuring neuron-specific enolase (NSE) levels, examining electroencephalogram (EEG) traces and analyzing anatomical data by using magnetic resonance imaging (MRI). METHODS: Altogether 18 healthy volunteers participated in the study. tACS was applied at 5 kHz for a duration of 10 min over the left M1 at an intensity of 1 mA. RESULTS: After stimulation no significant changes were detected in NSE levels, no structural alterations were observed in the anatomical scans and no pathological changes were found in the EEG recordings. CONCLUSIONS: Our data imply that the application of tACS is safe at least within these parameters and with these applied protocols.

Source: PubMed

Safety of 5 kHz tACS

Authors: Chaieb, L., Antal, A., Pisoni, A., Saiote, C., Opitz, A., Ambrus, G.G., Focke, N. and Paulus, W.

Journal: BRAIN STIMULATION

Volume: 7

Issue: 1

Pages: 92-96

eISSN: 1876-4754

ISSN: 1935-861X

DOI: 10.1016/j.brs.2013.08.004

Source: Web of Science (Lite)

Safety of 5 kHz tACS.

Authors: Chaieb, L., Antal, A., Pisoni, A., Saiote, C., Opitz, A., Ambrus, G.G., Focke, N. and Paulus, W.

Journal: Brain stimulation

Volume: 7

Issue: 1

Pages: 92-96

eISSN: 1876-4754

ISSN: 1935-861X

DOI: 10.1016/j.brs.2013.08.004

Abstract:

Background

Sinusoidal transcranial alternating current stimulation (tACS) at 5 kHz applied for 10 min at 1 mA intensity over the hand area of the primary motor cortex (M1) results in sustained changes in cortical excitability as previously demonstrated.

Objective

Here we have assessed safety aspects of this stimulation method by measuring neuron-specific enolase (NSE) levels, examining electroencephalogram (EEG) traces and analyzing anatomical data by using magnetic resonance imaging (MRI).

Methods

Altogether 18 healthy volunteers participated in the study. tACS was applied at 5 kHz for a duration of 10 min over the left M1 at an intensity of 1 mA.

Results

After stimulation no significant changes were detected in NSE levels, no structural alterations were observed in the anatomical scans and no pathological changes were found in the EEG recordings.

Conclusions

Our data imply that the application of tACS is safe at least within these parameters and with these applied protocols.

Source: Europe PubMed Central