Behavioral and Brain Sciences

Authors' Response
Emanuel Donchin and Michael G. H. Coles (1988). Is the P300 component a manifestation of context updating? BBS 11:357–374.

Context updating and the P300

Emanuel Donchin a1 and Michael G. H. Coles a1
a1 Department of Psychology and Beckman Institute, University of Illinois at Urbana-Champaign, Champaign, IL 61820 http://


We concur with Sommer et al. that the processing manifested by P300 is not necessarily conscious. We also note that Verleger is yet again adducing evidence that contradicts an assertion we never made.