Electrophysiological Evidence of Auditory and Cognitive Processing Deficits in Parkinson Disease

Figure 4

Grand averaged AERPs from both study groups in response to target (4) and nontarget (1,2,3,5,6) digits during the dichotic digits paradigm. In these trials, the target digit (4) was presented to the left ear only. Red: control group response to nontarget digits; Green: PD group response to nontarget digits; Blue: PD group response to target digits; Yellow: control group response to target digits.