ABSTRACT
Stochastic resonance (SR) is a phenomenon in which an intermediate level of noise enhances the response of a weak input signal. This phenomenon is experimentally used for rehabilitation and treatment of visuomotor disorders associated with low amplitude and higher latency P100 VEPs. We presupposed that shortly it will be possible to develop and design new devices that enable multisensory SR in the audio-visual modality for human sensorimotor enhancement and rehabilitation purposes. This study was newer in which the auditory noise was used in the form of song of different tempos and their amplitude and latency of P100 PRVEP (pattern reversal visual evoked potential) was compared. Whether the different tempos song may affects the PRVEP. This study was conducted on 57 healthy volunteers in AIIMS Bhopal. The subjects were placed in front of a computer displaying a checkerboard 8x8 size. Electrodes were pasted on their scalp. The average latencies and amplitudes of the PRVEP were recorded at resting, then with the stimulus of acoustic noise in the form of low and high tempo song. The PRVEP were recorded for each event. We found that low- and high-tempo songs do not affect the latency component of PRVEP, while it significantly affects amplitude. Music therapy can help with vision rehabilitation, especially in patients with low amplitude PRVEP. A more significant number of samples for further study in this field in multisensory SR with visual evoked potentials (VEP) are necessary. We can also conclude that a sound-free environment is essential during VEP recording.
