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Related Concept Videos

Somatosensation01:33

Somatosensation

The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.
Sensory Modalities01:15

Sensory Modalities

Sensation typically is the process by which the sensory receptors and sense organs detect stimuli from the internal and external environment and transmit this information to the central nervous system for processing.
General senses refer to the broad category of sensory information detected by receptors in the body and can be further grouped into somatic and visceral senses. Somatic sensations include touch, pressure, temperature, and pain and are essential for navigating our environment and...
Tactile and Chemical Senses01:27

Tactile and Chemical Senses

Tactile senses encompass touch, temperature, and pain, each mediated by specific receptors. Touch receptors detect mechanical energy or pressure against the skin. Sensory fibers from these receptors enter the spinal cord and relay information to the brain stem. Here, most fibers cross over to the opposite side of the brain. The touch information then moves to the thalamus, which projects a map of the body's surface onto the somatosensory areas of the parietal lobes in the cerebral cortex. This...
Auditory Perception01:17

Auditory Perception

The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the cochlea, a...
Sensory Perception: Organization of the Somatosensory System01:11

Sensory Perception: Organization of the Somatosensory System

The somatosensory system is the central and peripheral nervous system component that senses and processes touch, pressure, pain, temperature, and body position or proprioception. The process of sensation takes place at three levels:
The receptor level:
The receptor level is the first stage of sensation. It involves the detection of a stimulus by specialized sensory receptors. The stimulus must arrive within the receptor's receptive field. Next, the receptor converts the energy of the stimulus...
Introduction to Special Senses01:26

Introduction to Special Senses

Sensory receptors play an integral part in comprehending our external and internal environments. They receive diverse stimuli, converting them into the nervous system's electrochemical signals. This conversion occurs as the stimulus alters the sensory neuron's cell membrane potential, instigating the generation of an action potential. This action potential is subsequently transmitted to the central nervous system (CNS), which integrates with other sensory data or higher cognitive functions.

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Related Experiment Video

Updated: Jun 11, 2026

Assessment of Audio-Tactile Sensory Substitution Training in Participants with Profound Deafness Using the Event-Related Potential Technique
11:39

Assessment of Audio-Tactile Sensory Substitution Training in Participants with Profound Deafness Using the Event-Related Potential Technique

Published on: September 7, 2022

Seeing the body modulates audiotactile integration.

Jane E Aspell1, Tom Lavanchy, Bigna Lenggenhager

  • 1Laboratory of Cognitive Neuroscience, Ecole Polytechnique Fédérale de Lausanne (EPFL), Swiss Federal Institute of Technology, 1015 Lausanne, Switzerland. jane.aspell@epfl.ch

The European Journal of Neuroscience
|June 30, 2010
PubMed
Summary
This summary is machine-generated.

This study demonstrates audiotactile crossmodal congruency effects (CCEs) for the first time. These effects, where auditory distractors impact tactile perception, were only observed when participants could see their own body.

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Area of Science:

  • Neuroscience
  • Psychology
  • Human Perception

Background:

  • Crossmodal congruency effects (CCEs) are well-documented for visual stimuli but have not been observed for tactile targets with auditory distractors.
  • Previous research has primarily focused on visual distractors, leaving the audiotactile domain under-explored.

Purpose of the Study:

  • To investigate the existence of audiotactile crossmodal congruency effects (CCEs).
  • To determine if audiotactile CCEs share characteristics with previously observed visuotactile CCEs.
  • To explore the influence of visual body feedback on audiotactile integration.

Main Methods:

  • Participants performed a tactile elevation discrimination task while ignoring auditory stimuli presented from different spatial locations.
  • Vibrators were attached to participants' backs, and auditory stimuli were delivered via loudspeakers.
  • Experimental blocks included conditions with and without visual feedback of the participant's own body via a camera and head-mounted display.

Main Results:

  • Audiotactile CCEs were observed, with incongruent auditory distractors impairing tactile performance compared to congruent distractors.
  • These effects were present only when participants had visual access to their own body.
  • Unlike visuotactile CCEs, audiotactile CCEs did not show a dependency on the spatial relationship between auditory distractors and tactile targets.

Conclusions:

  • This study provides the first evidence for audiotactile crossmodal congruency effects.
  • Audiotactile CCEs are distinct from visuotactile CCEs, particularly regarding spatial sensitivity.
  • Visual feedback of the body significantly modulates audiotactile integration and the manifestation of CCEs.