ADC stands for Anlogue to Digital Convertor.
Alpha waves are in the band 8Hz to 13Hz
Anodal is a positive flow of current intended to excite.
Anode is the positive electrode. In foc.us products the anode is labelled "X".
Artifacts are distortions in an EEG signal not related to neuronal activity
Bands are discrete ranges of EEG frequency such as delta, theta, alpha, beta, gamma bands
BCI is an acronym for Brain Computer Interface
Beta waves are EEG signals in the 14-30Hz frequency range. β
The bias is used for common mode rejection to reduce electrical interference.
What is cathodal stimulation? Cathodal stimulation is the negative flow of current designed to inhibit neurons.
Cathode is the negative electrode.
A contraindication is a known condition with which tDCS should not be considered e.g. epilepsy is a tDCS contraindication.
Contralateral means the opposite side of the body.
The outer layer of the front part of the brain.
DLPFC stands for Dorso-Lateral Pre-Frontal Cortex
EEG is short for Electro Encepholo Graphy.
fNIRS is an acronym for functional Near Infrared Spectroscopy
Focus is a mental state enabling self-actualization
An alphabetical list of words relating to a specific subject with explanations;
Montage means the location of electrodes.
Neuroplasticity refers to the ability of the brain to learn by making new connections.
Phosphenes are a sensation of white light caused by electrodes placed to close to the eyes.
Placebo is a sham stimulation where no current is delivered after the initial ramping.
Ramping is the gradual increase from zero to target current level performed at the start of a stimulation session for comfort.
The Reference electrode is used to take potential difference measurements for all other EEG electrodes.
Shunting refers to the electricity that flows through the skin or skull rather than the intended route through the brain.
tACS is an acronym for transcranial Alternating Current Stimulation.
tDCS - transcranial direct current stimulation
tPCS is an acronym for transcranial Pulsed Current Stimulation.
tRCS is an acronym for transcranial Rippled Current Stimulation.
tRNS is an acronym for transcranial Random Noise Stimulation.