GENERATION OF COGNITIVE POTENTIALS
Event-related
evoked potentials (ERPs), which include cognitive potentials, despite their
importance in neuroscience and medicine are still a largely unknown phenomenon.
Two
possible mechanisms for ERPs are under evaluation:
1) phase
resetting of existing oscillation in the brain,
2) the
imposition of stimulus-locked activity on random oscillation.
Gruber
and colleagues (Alpha phase synchronization predicts P1
and N1 latency and amplitude size. Cerebral Cortex 15, 371-377, 2005)
used several methods of analysis and found that the ERP components P1 and N1
are probably produced by phase resetting and synchronization between frequencies.