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Related Concept Videos

Major Somatic Sensory Pathways01:28

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Sensory impulses related to touch, pressure, vibration, and proprioception from various body parts, such as the limbs, trunk, neck, and posterior head, travel to the cerebral cortex through the posterior column-medial lemniscus pathway. The pathway’s name derives from the two white-matter tracts that convey the impulses: the spinal cord's posterior column and the brainstem's medial lemniscus. First-order sensory neurons extend their axons into the spinal cord, forming the...
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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:
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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.
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Related Experiment Video

Updated: Oct 5, 2025

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder
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Abnormal multisensory integration in relapsing-remitting multiple sclerosis.

Serena Giurgola1, Carlotta Casati2,3, Chiara Stampatori4

  • 1Department of Psychology and NeuroMI, University of Milano-Bicocca, Piazza dell'Ateneo Nuovo 1, 20126, Milan, Italy. s.giurgola@campus.unimib.it.

Experimental Brain Research
|January 30, 2022
PubMed
Summary
This summary is machine-generated.

Individuals with relapsing-remitting Multiple Sclerosis (RRMS) have an enlarged temporal binding window (TBW), indicating impaired audio-visual integration. This multisensory deficit is selective, not affecting unimodal perception.

Keywords:
AuditoryMultiple sclerosisMultisensory integrationSensory processingTemporal binding windowVisual

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Area of Science:

  • Neuroscience
  • Sensory Integration
  • Multiple Sclerosis Research

Background:

  • The Temporal Binding Window (TBW) measures multisensory integration efficiency, crucial for event perception.
  • Altered TBW is linked to neurological disorders, impacting cognition and behavior.
  • The presence of multisensory integration deficits in Multiple Sclerosis (MS) remains unexplored.

Purpose of the Study:

  • To investigate audio-visual multisensory integration deficits in individuals with relapsing-remitting Multiple Sclerosis (RRMS).
  • To determine if RRMS affects the Temporal Binding Window (TBW) compared to healthy controls.

Main Methods:

  • Twenty-five RRMS patients and 30 healthy controls performed an audio-visual simultaneity judgment task (SJ2).
  • Unimodal SJ2 tasks served as controls to assess perception of visual or auditory stimuli independently.
  • The width of the audio-visual Temporal Binding Window (TBW) was calculated for all participants.

Main Results:

  • Individuals with RRMS exhibited a significantly enlarged audio-visual TBW compared to healthy controls.
  • This enlargement indicates an increased tendency to integrate temporally asynchronous audio-visual stimuli in RRMS.
  • No significant differences were found in unimodal simultaneity perception between RRMS patients and controls.

Conclusions:

  • This study provides the first evidence of a selective audio-visual multisensory integration deficit in RRMS.
  • The findings suggest that Multiple Sclerosis disrupts the neural interplay between sensory systems, affecting temporal acuity.
  • The enlarged TBW in RRMS is a novel indicator of sensory processing alterations beyond known motor and cognitive impairments.