Comparative Analytical Study of Evoked and Event Related Potentials as Correlates of Cognitive Processes.
Abstract
This project permitted collaboration between Prof. Erol Basar in Lubeck and Dr. Bullock on new views and analyses of cognitive Event Related Potentials (ERPs), evoked oscillations (Induced Rhythms, IRs) and their relations to the EEG. ERPs have been found for the first time in nonmammalian models (fish, turtles), especially Omitted Stimulus Potentials (OSPS) and oddball ERPs and Mismatch Potentials. To compare the dynamics of these models with human ERPS, a new series of human subjects has been run, extending the range of interstimulus intervals; this showed two types of OSP with distinct dynamics - including a short ISI type not heretofore recognized. Basar and Bullock co-edited a book on a new theme: Induced Rhythms in the Brain (Birkhauser Boston, 1992), with 22 chapters by invited experts. The phenomenon of triggered or modulated oscillations has been known for more than 50 years but not been recognized or studied as a category of brain responses; it is now under active investigation in ours and several other laboratories as a possible correlate of certain kinds of cognition.... Electroencephalogram, Event Related Potentials, Evoked Potentials.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 21, 1992
- Accession Number
- ADA261388
Entities
People
- Theodore H. Bullock
Organizations
- University of California, San Diego