Reason for silence

silenceUniversity of Oregon new discovery for silence claims that Brain allocates different pathways for silence and the noise. According to the research done, brain can regulate the start and end of what we hear which implies that the signaling of a sound's appearance and its subsequent disappearance are both handled by the different pathway.

An experiment performed on the rats which supervised the activity of neurons and their synapses (gap between two adjacent neurons through which information passes) as rats were exposed to noise for milliseconds, observing the responses to both the start and end of a sound. The researchers recorded the frequencies and the wavelengths of the sound. It was concluded that a channel of synapses present in the brain's auditory cortex deals specifically with shutting off sound processing at appropriate times which is the reason why we are able to regulate our speech and also can be silent.

This discovery could be an aid to the children impaired with speech and learning, and may help improve the design of hearing aids and cochlear implants.