Evaluation of P300 components for emotion-loaded visual event-related potential in elderly subjects, including those with dementia.

Aim: In the present study, the P300 component of the emotion-loaded visual event-related potential in response to photographs of babies crying or smiling was measured to evaluate cognitive function in elderly subjects, including those with dementia.

Methods: The subjects were 48 elderly people who consulted a memory disorder clinic. The visual event-related potential was measured using oddball tasks.