95 percent of auditory nerve fibers carry coded signals from inner hair cells upward

Evidence

Ninety-five percent of auditory nerve fibers are considered to be type I fibers, which are the fibers that synapse with the inner hair cells and provide afferent connections to higher levels in the auditory system. These fibers are responsible for providing a neural representation, or code, of basilar membrane vibration. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 229

Categorization

• DEFINE: Defines type I fibers and their synapse targets; foundational for neural coding topics.