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Related Concept Videos

Overview of Somatic Sensory Pathways01:29

Overview of Somatic Sensory Pathways

6.2K
Somatic sensory or somatosensory pathways refer to the neural pathways that carry information related to touch, pressure, pain, temperature, and proprioception from the skin, muscles, tendons, and joints to the brain. These pathways involve several stages of processing and integration of sensory information.
The somatosensory system is divided into three main pathways: the dorsal (or posterior) column-medial lemniscus, spinothalamic (or anterolateral), and spinocerebellar pathways.
The dorsal...
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Olfactory Receptors: Location and Structure01:03

Olfactory Receptors: Location and Structure

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The process of olfaction, also known as the sense of smell, is a sophisticated chemical response system. The specialized sensory neurons that facilitate this process, known as olfactory receptor neurons, are situated in an upper segment of the nasal cavity, known as the olfactory epithelium. Olfactory sensory neurons are bipolar, with their dendrites extending from the epithelium's apex into the mucus that lines the nasal cavity. Airborne molecules, when inhaled, traverse the olfactory...
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Major Somatic Sensory Pathways01:28

Major Somatic Sensory Pathways

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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...
1.3K
What is a Sensory System?01:31

What is a Sensory System?

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Sensory systems detect stimuli—such as light and sound waves—and transduce them into neural signals that can be interpreted by the nervous system. In addition to external stimuli detected by the senses, some sensory systems detect internal stimuli—such as the proprioceptors in muscles and tendons that send feedback about limb position.
97.0K
Somatosensation01:33

Somatosensation

39.8K
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.
39.8K
Auditory Pathway01:15

Auditory Pathway

6.0K
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...
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Related Experiment Video

Updated: Oct 6, 2025

3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache
10:39

3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache

Published on: June 2, 2014

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Exploring alterations in sensory pathways in migraine.

Noemi Meylakh1, Luke A Henderson2

  • 1School of Medical Sciences (Neuroscience), Brain and Mind Centre, University of Sydney, Camperdown, NSW, 2050, Australia. noemi.meylakh@sydney.edu.au.

The Journal of Headache and Pain
|January 13, 2022
PubMed
Summary
This summary is machine-generated.

Migraine patients show altered brain connectivity between sensory areas even when pain-free. This suggests a dysfunctional sensory network may contribute to sensory processing disruptions between migraine attacks.

Keywords:
Functional connectivityInfra-slow oscillationsMigrainePrimary visual cortexSecondary visual cortexSensory network

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Related Experiment Videos

Last Updated: Oct 6, 2025

3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache
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Area of Science:

  • Neuroscience
  • Neurology
  • Medical Imaging

Background:

  • Migraine is a neurological disorder causing severe headaches, nausea, and sensory sensitivity.
  • Sensory processing disruptions are evident in migraine patients even between attacks.
  • Interictal functional connectivity in sensory cortices remains understudied.

Purpose of the Study:

  • To investigate interictal functional connectivity between visual, auditory, olfactory, gustatory, and somatosensory cortices in migraineurs.
  • To determine if sensory processing is altered in migraine patients during pain-free periods.

Main Methods:

  • Functional magnetic resonance imaging (fMRI) was used to compare resting brain activity.
  • Resting-state fMRI data were analyzed in migraineurs between attacks (n=32) and healthy controls (n=71).
  • Statistical analyses identified significant differences in connectivity patterns, corrected for multiple comparisons.

Main Results:

  • Migraineurs exhibited increased infra-slow oscillatory activity in visual cortices (V1, V2, V3).
  • Enhanced functional connectivity was observed between visual cortices (V1, V2) and other sensory areas (auditory, gustatory, motor, somatosensory).

Conclusions:

  • Migraine patients display a dysfunctional sensory network during the interictal phase.
  • Altered sensory network connectivity may underlie sensory processing changes between migraine attacks.