Fig. 3From: EEG/ERP evidence of possible hyperexcitability in older adults with elevated beta-amyloidGrand average waveforms with P3 peak scalp maps of the target and nontarget responses for the three n-back tests between CNAβ+ (top) and CNAβ− (bottom) at channel Fz. Behavioral response times are indicated by the computer mouse. The 3D scalp maps are facing down and most of the P3 effects (red color) are distributed in the frontal areaBack to article page