Comparative Analytical Study of Evoked and Event Related Potentials as Correlates of Cognitive Processes
Abstract
This project is a collaboration between the two named laboratories, extending the capabilities of each group. It combines the analytical approach of multielectrode recording from many places in the brain with comparative approach of seeking clues from lower animal species. Using selected paradigms of stimulus presentation or omission already known to trigger Event Related Potentials (ERPs) in humans, as well as mental events, this program compares brain recording from cats, reptiles, fish and other lower models, analyzing both single trials and averages from many channels. Sacrificing the advantage of human subjects easy to instruct and to control with respect to attention, we can go farther in number of intracranial electrodes in deep cerebral and brainstem loci. Early results show that lower species have ERPs by the definition of the stimulus regime and that much of this response occurs at lower brain levels, probably precognitive, suggesting the need to distinguish the components in humans that depend on cognition from those that do not. New forms of grading the expectation of stimuli are being compared on humans, cats, and lower species. (sdw)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 16, 1990
- Accession Number
- ADA226331
Entities
People
- Erol Basar
- Theodore H. Bullock
Organizations
- University of California, San Diego