auditorysomatosensory

Auditorysomatosensory describes the functional interaction between auditory and somatosensory systems, in which somatic inputs such as touch, proprioception, or motor activity influence auditory processing, and conversely. It is a facet of multisensory integration that supports perception in dynamic environments, aiding tasks like speech comprehension, sound localization, and temporal judgments.

Neural mechanisms involve convergence across brainstem, midbrain, and cortical circuits. In animals, somatosensory afferents project to the dorsal cochlear nucleus and interact with auditory pathways, enabling somatic modulation of auditory responses. Multisensory neurons have been observed in the inferior colliculus and auditory cortex, and human studies show activation of posterior temporal and parietal regions during tasks that pair touch and sound. The integration can shape neural responsiveness, influence perceptual judgments, and enhance performance in challenging listening conditions.

Development and plasticity play a role, with experiential factors shaping the strength and pattern of auditory-somatosensory interactions. Hearing loss, auditory training, and use of assistive devices can modify cross-modal influences, reflecting the brain’s adaptive capacity to integrate multiple sensory streams.

Clinical relevance includes implications for tinnitus and for the design of auditory prostheses and rehabilitation approaches. Somatosensory cues have been explored as supplementary information to support speech understanding in noise or to modulate maladaptive auditory sensations, highlighting potential avenues for therapy and sensory augmentation in audiology.