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Develop a battery powered tACS
Develop a battery powered tACS
Our purpose for developing the tACS device:
Design a PCB board using EAGLE software
Assemble the device by soldering the parts on the board
Observe the functionality that performs our proposed intensity (1-40 Hz of sinusoidal frequency and 0.5-2.5 mA of electrical current)
Change to new versions of PCB design to make optimal functionality, if needed
However, we were unable to finish building the tACS device due to undelivered parts. The current progress of device building is presented on the left. The upper part represents the front side of the PCB board, and the bottom shows the back side.
Alternative plan
Alternative plan
Instead, we implemented another tES method, transcranial direct current stimulation (tDCS). We acquired ActivaDose tDCS device by Caputron, as shown on the right.
EEG data prior to and after stimulation
EEG data prior to and after stimulation
Top figure: The intensity of five frequencies in the brain during doing the 3-Back test before they receive tDCS stimulation
Bottom figure: The intensity of five frequencies in the brain during doing the 3-Back test after they receive tDCS stimulation
Result of MANOVA tests by SPSS
Result of MANOVA tests by SPSS
Top table: SPSS uses four different tests to check whether participants belonging to stimulation or sham groups affect their overall 3-Back test performance or not. The result is shown on the entries of Stim_Or_Sham
Bottom table: In contrast to Top table, SPSS here provides whether participants belonging to stimulation or sham groups affect both their working memory performance before and after stimulation. The result is shown on the entries of the Corrected Model.
Page Designer: Tae Houn Joung
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