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Related Concept Videos

Somatosensation01:33

Somatosensation

36.8K
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.
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Sensory Perception: Organization of the Somatosensory System01:11

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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:
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...
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Somatosensory, Motor, and Association Cortex01:23

Somatosensory, Motor, and Association Cortex

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

Motor and Sensory Areas of the Cortex

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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....
8.0K
Overview of Somatic Sensory Pathways01:29

Overview of Somatic Sensory Pathways

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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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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...
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Related Experiment Video

Updated: Apr 24, 2026

Single Synapse Indicators of Glutamate Release and Uptake in Acute Brain Slices from Normal and Huntington Mice
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The sensory striatum.

Charles J Wilson1

  • 1Department of Biology, University of Texas at San Antonio, San Antonio, TX 78249, USA.

Neuron
|September 6, 2014
PubMed
Summary
This summary is machine-generated.

The dorsal striatum plays a role in action selection. New research reveals direct connections between the sensory cortex and the striatum, challenging previous assumptions about its function.

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Area of Science:

  • Neuroscience
  • Systems Neuroscience
  • Cortical-Striatal Circuits

Background:

  • The dorsal striatum is traditionally viewed as a key area for motor control and habit formation.
  • However, a significant portion of the dorsal striatum receives input from sensory cortical areas, not exclusively motor areas.

Purpose of the Study:

  • To investigate the functional connectivity between the sensory cortex and the dorsal striatum.
  • To clarify the role of sensory input in striatal function.

Main Methods:

  • Utilized intracellular recording techniques to directly measure neural activity.
  • Examined the connections between specific sensory cortical regions and the dorsal striatum.

Main Results:

  • Demonstrated direct synaptic connections originating from the sensory cortex and terminating in the dorsal striatum.
  • Provided electrophysiological evidence for sensory-driven inputs influencing striatal neurons.

Conclusions:

  • The findings challenge the exclusive motor-centric view of the dorsal striatum.
  • Suggest that sensory processing significantly influences action selection and habit formation via direct cortical-striatal pathways.