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Patients with dementia are prone to make errors while they perform a task. To evaluate error detection and action monitoring in patients with dementia of the Alzheimer type (DAT) at a relatively early stage of the illness, error negativity (Ne) and error positivity (Pe) of event-related potentials (ERPs) obtained by averages time-locked to error response were studied using a lexical recognition paradigm...
We studied somatosensory P3 and auditory P3 in patients with dementia of the Alzheimer type (DAT), those with vascular dementia (VD) and healthy control subjects using conventional averages and single-trial waveform analysis.Regardless of modalities, the P3 latencies in demented patients were significantly longer than those in control subjects. Although the P3 components showed no significant modality...
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