Loudness perception is not solely peripheral vibration but involves central auditory transformation.

Evidence

However, we must also consider that loudness is a perception that is not only a consequence of basilar membrane vibration. The central auditory system has a clear role in the representation of loudness and includes mechanisms that transform basilar membrane vibration into perception. The next step in the pathway, of course, is that of the auditory nerve. Unlike the pattern observed for vibration measured at a single place on the basilar membrane, however, there is no obvious correlate contained within a single auditory nerve fiber that can immediately explain loudness growth. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 731

Categorization

Category: Definitional Content