Gaillard A W, Näätänen R
Biol Psychol. 1980 Feb;10(1):31-9. doi: 10.1016/0301-0511(80)90005-8.
A method is described to investigate how the contingent negative variation (CNV), developing in the S1-S2 interval of a reaction task, is influenced by slow potential shifts (SPSs) occurring before S1. Enhanced CNV amplitudes were found when the SPSs before S1 were positive, whereas with negative SPSs attenuated amplitudes were obtained.
