Primary Somatosensory Cortex
Primary Somatosensory Cortex - Related Videos
01:23
Somatosensory, Motor, and Association Cortex
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2026
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...
07:04
Imaging Neural Activity in the Primary Somatosensory Cortex Using Thy1-GCaMP6s Transgenic Mice
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Cited by 2 •
2019
We describe an experimental procedure for measuring neuronal activity through dual optical windows above bilateral primary somatosensory corticies (S1) in Thy1-GCaMP6s transgenic mice using 2-photon (2P) microscopy in vivo.
09:48
Intracortical Inhibition Within the Primary Motor Cortex Can Be Modulated by Changing the Focus of Attention
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Cited by 21 •
2017
Using two different transcranial magnetic stimulation (TMS) protocols, this manuscript describes how to measure and compare cortical inhibition within the primary motor cortex when adopting different attentional foci.
06:56
Somatosensory Event-related Potentials from Orofacial Skin Stretch Stimulation
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Cited by 4 •
2015
This paper introduces a method for obtaining somatosensory event-related potentials following orofacial skin stretch stimulation. The current method can be used to evaluate the contribution of somatosensory afferents to both speech production and speech perception.
01:56
Time-Lapse Imaging of Transfected Primary Mouse Cerebral Cortex Cells
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2025
Source: Landeira, B. S.,et al., Live Imaging of Primary Cerebral Cortex Cells Using a 2D Culture System. J. Vis. Exp. (2017)The video demonstrates the use of time-lapse imaging to track fluorescently labeled cortical progenitors, monitor their division and differentiation, and study lineage development in primary cerebral cortex...
FAQs
Somatotopic organization places representations of different body regions in a structured cortical map. This arrangement allows researchers to relate activity in particular cortical areas to sensations arising from corresponding parts of the body. Changes in this map can therefore provide evidence about how sensory representations are organized, modified, or affected after neurological injury.
Signals relayed through the spinal cord and thalamus provide the cortical input needed to analyze bodily sensations. The cortex processes features such as touch, pressure, pain, temperature, vibration, and body position, helping the brain distinguish one sensory quality from another. This processing contributes to accurate body awareness rather than merely registering undifferentiated stimulation.
The region contributes to body awareness by combining sensory information associated with different body locations and sensory features. Its organized representation helps the brain relate incoming signals to the body region where they arise. Studying this relationship clarifies how neural processing supports recognition of the body and interpretation of changes in physical sensation.
Researchers examine the cortical map and sensory processing functions to investigate neural plasticity, meaning changes in how the brain represents or handles information. Comparing sensory representations across conditions can help reveal whether processing changes after altered sensory experience or injury. These findings contribute to broader understanding of how the nervous system adapts.
Investigations can connect changes in sensory processing or body-region representations with neurological disorders. Because the area contributes to interpreting touch, pain, temperature, vibration, and body position, altered function may help researchers examine why sensory experiences become abnormal. This work supports biological studies of disorder-related processing without treating one cortical finding as a complete explanation.
Research on this region helps scientists examine whether sensory representations and processing change during recovery from brain injury. Its somatotopic organization provides a framework for tracking how body-related information is represented while recovery is studied. The resulting knowledge can inform investigations of neural plasticity and the biological processes associated with restored or altered sensory function.