Electrical Activity in the Brain

There are three ways to investigate the electrical activity in the brain. These are single cell recordings, which measures electrical activity of the single neuron, the electroencephalogram (EEG) in which differtent aspects of brain waves are measured, which can as well be linked to specific behaviors, and finally Event-Related Potentials (ERP's), which are short alterations in the EEG that can be linked to specific presented stimuli to the participant. For example, to a flash or a specific tone that is presented. With ERP's investigaters have the possibility to find in which areas of the brain the proccessing is taken place, as well in which temporal order. Often in the range of milliseconds. (Kolb and Whishaw, 2006).