» Articles » PMID: 35330432

Whole Brain Hemodynamic Response Based on Synchrony Analysis of Brain Signals for Effective Application of HD-tDCS in Stroke Patients: An FNIRS Study

Overview
Journal J Pers Med
Date 2022 Mar 25
PMID 35330432
Authors
Affiliations
Soon will be listed here.
Abstract

In this study, the effective application of high-definition transcranial direct current stimulation (HD-tDCS) based on the whole brain hemodynamic response in stroke patients was investigated using functional near-infrared spectroscopy (fNIRS). The intrahemispheric and interhemispheric synchronization and cortical activity based on the time during 1 mA HD-tDCS were examined in 26 chronic cerebrovascular disease patients. At the beginning of HD-tDCS, the synchronization and brain activity in the whole brain increased rapidly and decreased after 5 min. In the middle of tDCS, the synchronization began to increase again, and strong synchronic connections were formed around the desired stimulation area. After tDCS, strong cortical activation was observed in the stimulation area, indicating that the baseline of the oxyhemoglobin (HbO) signal increased in the desired stimulation area. Therefore, the results of this study indicate that HD-tDCS can be applied efficiently to enhance the effect of tDCS. This stimulation method with tDCS can be explored clinically for more neurorehabilitation of patients with degenerative brain diseases.

Citing Articles

The impact of a 12-week tele-exercise program on cognitive function and cerebral oxygenation in patients with OSA: randomized controlled trial-protocol study.

Stavrou V, Pitris K, Constantinidou F, Adamide T, Frangopoulos F, Bargiotas P Front Sports Act Living. 2024; 6:1418439.

PMID: 39346497 PMC: 11427754. DOI: 10.3389/fspor.2024.1418439.


Neuromodulation with transcranial direct current stimulation contributes to motor function recovery via microglia in spinal cord injury.

Oishi R, Takeda I, Ode Y, Okada Y, Kato D, Nakashima H Sci Rep. 2024; 14(1):18031.

PMID: 39098975 PMC: 11298548. DOI: 10.1038/s41598-024-69127-7.


Transcranial Direct Current Stimulation for Chronic Stroke: Is Neuroimaging the Answer to the Next Leap Forward?.

Salazar C, Feng W, Bonilha L, Kautz S, Jensen J, George M J Clin Med. 2023; 12(7).

PMID: 37048684 PMC: 10094806. DOI: 10.3390/jcm12072601.


Personalized Approaches to Stroke: One Step Forward for Functional Recovery of Stroke Patients.

Chang W J Pers Med. 2022; 12(5).

PMID: 35629244 PMC: 9148160. DOI: 10.3390/jpm12050822.

References
1.
Breitling C, Zaehle T, Dannhauer M, Bonath B, Tegelbeckers J, Flechtner H . Improving Interference Control in ADHD Patients with Transcranial Direct Current Stimulation (tDCS). Front Cell Neurosci. 2016; 10:72. PMC: 4834583. DOI: 10.3389/fncel.2016.00072. View

2.
Nikolin S, Loo C, Bai S, Dokos S, Martin D . Focalised stimulation using high definition transcranial direct current stimulation (HD-tDCS) to investigate declarative verbal learning and memory functioning. Neuroimage. 2015; 117:11-9. DOI: 10.1016/j.neuroimage.2015.05.019. View

3.
Villringer A, Dirnagl U . Coupling of brain activity and cerebral blood flow: basis of functional neuroimaging. Cerebrovasc Brain Metab Rev. 1995; 7(3):240-76. View

4.
Li H, Zhu N, Klomparens E, Xu S, Wang M, Wang Q . Application of functional near-infrared spectroscopy to explore the neural mechanism of transcranial direct current stimulation for post-stroke depression. Neurol Res. 2019; 41(8):714-721. DOI: 10.1080/01616412.2019.1612539. View

5.
Lachaux J, Rodriguez E, Martinerie J, Varela F . Measuring phase synchrony in brain signals. Hum Brain Mapp. 2000; 8(4):194-208. PMC: 6873296. DOI: 10.1002/(sici)1097-0193(1999)8:4<194::aid-hbm4>3.0.co;2-c. View