RECENT PUBLICATIONS

Gevins, A. (1999). EEG, its future in assessing neurocognitive functioning. In. G. Adelman & B.H. Smith (Eds.) Encyclopedia of Neuroscience, 2nd. Ed. Elsevier, Amsterdam.

ABSTRACT

Since even simple actions involve complex and rapidly-changing sequences of processes in many brain regions, high temporal and spatial resolution is necessary to resolve patterns of brain activity related to cognition and behavior. The electroencephalogram (EEG) is highly sensitive to thought processes, and it provides millisecond-range temporal resolution. Although EEG does not provide three-dimensional brain images, the spatial detail of EEG measurements can be improved by recording from closely spaced electrodes and by correcting the distortion caused by volume conduction of EEG signals through the skull. Subsecond statistical relationships between EEG waveforms at different scalp locations can provide insight about the rapidly shifting functional networks which form between cortical regions. Together, these methods provide a picture of the dynamic neural processes underlying the intentional allocation of attention during performance of cognitive tasks.