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Related Concept Videos

Somatosensory, Motor, and Association Cortex01:24

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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Somatosensation01:33

Somatosensation

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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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Nociception01:44

Nociception

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Nociception—the ability to feel pain—is essential for an organism’s survival and overall well-being. Noxious stimuli such as piercing pain from a sharp object, heat from an open flame, or contact with corrosive chemicals are first detected by sensory receptors, called nociceptors, located on nerve endings. Nociceptors express ion channels that convert noxious stimuli into electrical signals. When these signals reach the brain via sensory neurons, they are perceived as pain.
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Association Areas of the Cortex01:21

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Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
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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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Motor and Sensory Areas of the Cortex01:14

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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....
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Related Experiment Video

Updated: Jun 16, 2025

Intracranial Pharmacotherapy and Pain Assays in Rodents
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Coordination between midcingulate cortex and retrosplenial cortex in pain regulation.

Yunya Qiu1,2, Yan-Na Lian1,2, Cheng Wu1,2

  • 1NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain, Research and Brain-Machine Integration, School of Brain Science and Brain Medicine, Zhejiang University, Hangzhou, China.

Frontiers in Molecular Neuroscience
|August 21, 2024
PubMed
Summary

The mid-cingulate cortex (MCC) and retrosplenial cortex (RSC) collaboratively regulate pain. MCC activity influences RSC pain control, while RSC is vital for MCC

Keywords:
MCCRSCaversionchemogenetic approachneuropathic painpain regulation

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Area of Science:

  • Neuroscience
  • Pain research
  • Cingulate cortex function

Background:

  • The cingulate cortex, including the MCC and RSC, plays a critical role in pain processing.
  • Detailed interactions between MCC and RSC in pain modulation remain unclear.

Purpose of the Study:

  • To investigate the specific roles of the MCC and RSC in pain regulation.
  • To elucidate the interplay between these two brain regions in sensory processing.

Main Methods:

  • Utilized chemogenetic tools in rodents to selectively activate or inhibit neuronal activity.
  • Targeted specific subregions: MCC and RSC.
  • Assessed changes in pain sensitivity (mechanical and thermal).

Main Results:

  • Activating either the RSC or MCC increased pain sensitivity.
  • Inhibiting MCC disrupted RSC's control over mechanical and thermal pain.
  • Inhibiting RSC specifically impaired MCC's regulation of thermal pain.

Conclusions:

  • The MCC and RSC exhibit a collaborative mechanism in pain processing.
  • The MCC appears to govern the RSC's pain regulatory functions.
  • The RSC is essential for the MCC's modulation of thermal sensation.