This book is particularly explaining about the experimental study of effect of visual attention on efferent auditory system. The human efferent auditory system is plays major role in localization of sound source, auditory attention,protection of cochlea and speech perception. Here through our experiment we found that the visual attention can alter the activity of efferent auditory system. Higher activity of the efferent system can increase the speech perception abilities so during the active visual attention may get better speech perception ability than non-visual attention activities.