BIOPAC® Systems, Inc. Logo

tDCS/tACS transcranial current stimulation

stimulator

Transcranial Direct Current Stimulation (tDCS), High Definition Transcranial Direct Current Stimulation (HD-tDCS), and Transcranial Alternating Current Stimulation (tACS) are forms of electrical stimulation to effect neuro-modulation in the brain. These stimulation methods employ the use of low level (typically under 2 ma) current applied to selected regions of the brain via surface electrodes placed on the scalp. Direct current is unipolar, alternating current is bipolar.

For tDCS/tACS studies, use the STMISOLA Constant Current or Voltage Linear Isolated Stimulator, which is ideally suited to perform this type of stimulation. At lower current levels (up to ~2 ma), the DC output current can be held for an arbitrarily long period of time.

tDCS/tACS can be used in conjunction with fMRI and transcranial magnetic stimulation (TMS)

See More...

Details

This is one of many ADVANCED FEATURES for the selected Application. Scroll down for hardware options.

The STMISOLA will support arbitrarily long, constant, non-varying, direct output currents, so long as the associated voltage compliance is 100 VDC or less. The tDCS level is adjusted by holding a stable voltage to the control voltage input of the STMISOLA. This control voltage can be set in AcqKnowledge, to be output to STMISOLA via MP160/150 analog output.

BIOPAC is unaware of safety concerns related to this procedure, however it is our understanding that tDCS or HD-tDCS are investigative protocols. As a safety precaution, please verify output currents prior to any subject measurements. There are no known measurement impacts when performing tDCS with other BIOPAC equipment.

Support

Application Notes

Knowledge Base

Spotlight On
wireless NIRS imager

fNIRS Mobile Imaging Systems

High-performance mobile fNIR Imaging Systems are stand-alone functional brain imaging solutions for continuous NIR spectroscopy (NIRS). These top of the line systems provide cognitive function assessment and eliminate a great many of the drawbacks of a functional MRI. Mobile subjects are comfortable and can respond naturally in real-world situations to take a test or perform mobile […]

View All
Latest News

New Citations | BIOPAC in Psychophysiology Research

The mind and body work together in many ways and psychophysiology research provides insight to these connections. BIOPAC has a variety of systems to power your emotion, arousal, stress, cognitive assessment, group interaction, startle, and other psychophysiology research. Here are some recent studies that have used BIOPAC systems for psychophysiological research… Skin conductance, facial EMG, […]

Seenel Imaging and BIOPAC Systems, Inc. Announce a Global Partnership

           For immediate release: January 4, 2023 Amiens, France and GOLETA, California, USA Seenel Imaging SAS and BIOPAC Systems, Inc. have formed a long-term global partnership to distribute MedelOpt®, Seenel Imaging’s groundbreaking wearable neuroimaging device for the neuroscience research market. Seenel Imaging, based in France, continues its international expansion by partnering with BIOPAC Systems, […]

Read All
Request a Demonstration
Request a Demonstration