Electroencephalography

The Institute of Cognitive Neuroscience houses three electroencephalography (EEG) laboratories. These laboratories allow the electrical activity of the brain to be recorded from the scalp of healthy volunteers or patients with electrodes affixed in elasticated caps. Two laboratories offer 64-channel recording capabilities, and the third has a 32-channel set-up. One of the laboratories is equipped with a soundproof booth to enable precise auditory presentations and amplifiers that are able to record sustained (DC) potentials. EEG is typically recorded while volunteers perform psychological tasks designed to tap into the cognitive issue of interest.

At present, the primary interest is in the small changes that can be seen in the EEG in response to events of interest (event-related potentials and steady state responses). These changes are used to study the temporal dynamics of neural activity associated with cognitive processes such as memory and attention, and their intracerebral origins.

This page last modified 17 November, 2011 by [ICN Web Team]

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