Written by Pam MS, NCSP | Fact checked by Psychology Dictionary staff 

the third positive element of an event-related potential that is correlated with postperceptual cognitive procedures, like attention. It is at times, referred to as the P300 because it appears about 300 ms after stimulant onset.

P3 COMPONENT: "The P3 component should have been observed and followed during the trial- why wasn't it?"

More On This Topic

Link to This Definition

Did you find this definition of P3 COMPONENT helpful? You can share it by copying the code below and adding it to your blog or web page.