US
EN
NL
DESlow Cortical Potentials (SCP’s) are very slow electrical shifts in brain activity. They change periodically from electrically negative to positive and play a significant role in the regulation of attention. A negative shift in the SCP signal represents activation of the cortex, increasing the firing probabilities of the underlying cortical areas. A positive shift represents an inhibition of the cortex and a decrease in firing probabilities. SCP’s are direct current (DC) shifts in the EEG and last from 300 msec to several seconds. The SCP itself does not have an absolute DC level, it is always a relative change from the starting point in the DC potential of the EEG.
Read our SCP User Guide for more information.
How is it measured?
SCP’s are measured with an EEG electrode on the skin of the scalp. SCP can be measured by using systems with a true DC-amplifier. As the SCP signal is very vulnerable to artifacts, the SCP signal needs to be corrected for (especially vertical) eye movements.
Brain Activity (EEG)
Eye Movement (EOG)
SCP equipment
NeXus-10 MKII
- Versatile and integrated system
- 4 channels of EXG
- 4 additional AUX inputs
- Digital inputs and interfacing options
- Bluetooth or USB data transfer
SCP Sensor
- Slow Cortical Potentials (SCP)
- Measure EEG below 1 Hz
- Shielded cables for high quality EEG