Enhancement of Delayed Audiovisual Response in Parkinson's Disease: A Comparison with Normal Aged Controls

摘要

Background: Our brain can collaborate useful information from different sensory stimuli automatically through multisensory integration. However, we cannot understand visual and auditory information clearly from the TV when the sound and graphics are out of synchronization. This is because our brain is not being able to integrate the visual and auditory information automatically. Objective and Method: To determine whether patients with Parkinson's disease (PD) have the same audiovisual integration as individuals without PD, we designed an experiment using three groups of subjects: 17 normal younger individuals (the NY group), 21 normal aged control individuals (the NC group) and 16 individuals with Parkinson's disease (the PD group). All subjects were required to press the response key when the auditory, visual or audiovisual stimuli were presented.