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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...
Motor and Sensory Areas of the Cortex01:14

Motor and Sensory Areas of the Cortex

The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex.
Somatosensory, Motor, and Association Cortex01:23

Somatosensory, Motor, and Association Cortex

The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at the...
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...
Auditory Pathway01:15

Auditory Pathway

Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking the...

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Related Experiment Video

Updated: May 11, 2026

Quantitative Assessment of Cortical Auditory-tactile Processing in Children with Disabilities
09:38

Quantitative Assessment of Cortical Auditory-tactile Processing in Children with Disabilities

Published on: January 29, 2014

Auditory stimuli from a sensor glove model modulate cortical audiotactile integration.

Raquel Metzker Mendes1, Rafael Inácio Barbosa, Carlos Ernesto Garrido Salmón

  • 1Faculty of Medicine of Ribeirão Preto, University of São Paulo, Brazil. raquelmetzker@bol.com.br

Neuroscience Letters
|May 1, 2013
PubMed
Summary

Sensory substitution training with a sensor glove enhances brain plasticity. This study shows how learning to "hear" textures reshapes auditory and somatosensory cortical connections.

Keywords:
Acoustic stimulationFunctional magnetic resonance imagingHandRehabilitationSensory deprivation

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Related Experiment Videos

Last Updated: May 11, 2026

Quantitative Assessment of Cortical Auditory-tactile Processing in Children with Disabilities
09:38

Quantitative Assessment of Cortical Auditory-tactile Processing in Children with Disabilities

Published on: January 29, 2014

Testing Tactile Masking between the Forearms
08:05

Testing Tactile Masking between the Forearms

Published on: February 10, 2016

Applying Incongruent Visual-Tactile Stimuli during Object Transfer with Vibro-Tactile Feedback
05:43

Applying Incongruent Visual-Tactile Stimuli during Object Transfer with Vibro-Tactile Feedback

Published on: May 23, 2019

Area of Science:

  • Neuroscience
  • Sensory processing
  • Brain plasticity

Background:

  • Cortical maps are vulnerable after peripheral nerve injuries.
  • Sensory substitution offers potential for preserving neural function.
  • Audiotactile integration is key to understanding sensory input.

Purpose of the Study:

  • Investigate cortical audiotactile integration mechanisms.
  • Explore sensory substitution using a sensor glove.
  • Assess the impact of training on neural pathways.

Main Methods:

  • fMRI experiment with tactile, auditory, and combined stimuli.
  • Randomized controlled trial with a training and control group.
  • Subjects identified textures solely by sound.

Main Results:

  • Trained subjects showed coupling between auditory and somatosensory cortical areas via associative regions.
  • Functional connections initially formed between primary auditory and sensory areas, later mediated by associative areas.
  • Sensor glove training altered blood-oxygen-level-dependent (BOLD) signals in the somatosensory cortex during auditory stimulation.

Conclusions:

  • Sensor glove training modifies audiotactile integration.
  • This training promotes neural plasticity and functional reorganization in the brain.
  • Sensory substitution may be a viable strategy for rehabilitation after nerve injuries.