National Brain Mapping Lab

tDCS

tES is a generic term that contains several techniques including transcranial direct current stimulation (tDCS), transcranial random noise stimulation (tRNS), or transcranial alternating current stimulation (tACS). All these techniques deliver a weak electrical current through two or more conductive electrodes which are put over the scalp. Electrodes have various shape and size and can be put over the scalp based on different montages. tDCS is the most common modality of tES and has been increasingly used in various brain mapping research in the last 15 years. tACS, on the other hand, has recently brought new exciting oscillatory-based ideas into brain mapping studies.

Applications of Electrical stimulation:(Top)

  • Depression
  • Migraine
  • Stroke rehabilitation
  • Risk-seeking behavior (Addiction, alcohol, cigarettes.)
  • Improve cognitive abilities (Memory, learning…)
  • Schizophrenia, Tinnitus…

Main items in tES section are as follows:(Top)

  • StarStimtCS system
  • neuroConn DC-STIMULATOR PLUS
  • neuroConn DC-STIMULATOR MR

Star Stim:(Top)

StarStim is a tCS and EEG monitoring device (up to 8-channel). It has the comfortable head cap with 39 positions based on the 10-10 system where the electrodes can be easily inserted.Electrodes are consist wet and dry EEG electrodes, sponstim’s (the stimulation electrodes), Pistim (The hybrid tCS and EEG electrode) and MRI compatible electrodes.


Star Stim

Star Stim

DC-STIMULATOR PLUS for tDCS and tACS:(Top)

The DC-STIMULATOR PLUS is a stimulator for tES. This devise has:

  • 1 channel stimulation
  • tDCS - transcranial direct current stimulation
  • bipolar stimulation with tACS (transcranial alternating current stimulation) and tRNS (transcranial random noise stimulation)
  • adjustable range of current ±4,500 µA, maximum adjustable current strength ±1,500 µA (peak-to-peak)
  • adjustable application time up to 30 minutes
  • frequencies adjustable up to 250 Hz, phase freely adjustable
  • 4 standard modes - tDCS (continuous stimulation) - pulse (cyclical stimulation activation/deactivation) - sinus (sinus wave) - noise (normally distributed)


DC-STIMULATOR PLUS for tDCS and tACS

DC-STIMULATOR MR:(Top)

The DC-STIMULATOR MR is an fMRI-compatible stimulator for apply tES during functional magnetic resonance imaging to localize the exact position of cortical activation.


DC-STIMULATOR MR

Services(Top)

  • Stimulation up to 8 channel:
    • Anodal stimulation
    • Cathodal stimulation
    • Sham
    • Double Blind
  • Concurrent tES/fMRI
  • Concurrent tES/EEG
  • Concurrent tES/fNIRS

StarStimtCS System(Top)

Specifications / Main Items:

  • StarStim NECBOX
  • Neoprene HeadCap
  • Neoprene Headband
  • Frontal dry electrode front-end
  • Gel electrode front-end
  • Stimulation electrode Pi cm2
  • Adhesive Electrode Front-end
  • Sponge electrode fron-end 25cm 2
  • Dry EEG Electrode for the scalp

NeuroConn DC-STIMULATOR MR

Specifications / Main Items:

  • MR filter modules & connection cable
  • MR & Std. equipment electrode sets, 35cm²
  • Equipment electrode set/25 MR
  • Equipment electrode set/35 MR

NeuroConn DC-STIMULATOR PLUS

Specifications / Main Items:

  • Equipment electrode set, 35cm²
  • Universal charger & transport case