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Related Concept Videos

Functional Brain Systems: Limbic System01:15

Functional Brain Systems: Limbic System

The limbic system, often called the "emotional brain," is a complex set of structures located deep within the brain. The intricate network of the limbic system supports a wide range of psychological functions, from emotional regulation to memory formation and sensory processing. This functional brain region encompasses specific parts of the diencephalon and the cerebrum, integrating the higher mental functions of the cerebral cortex with the primitive emotional responses of the deep brain...
Somatosensory, Motor, and Association Cortex01:23

Somatosensory, Motor, and Association Cortex

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...
Functional Brain Systems: Reticular Formation01:13

Functional Brain Systems: Reticular Formation

The reticular formation is a complex network of gray and white matter located within the brainstem extending from the medulla to the midbrain.
Within the reticular formation, there are several distinct nuclei that can be classified into three broad categories. The Raphe nuclei are located along the midline of the brainstem. They are primarily known for their role in synthesizing and releasing serotonin, a neurotransmitter involved in regulating mood, appetite, sleep, and circadian rhythms. The...
Major Somatic Sensory Pathways01:28

Major Somatic Sensory Pathways

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 posterior columns...
What is a Sensory System?01:31

What is a Sensory System?

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.
Somatosensation01:33

Somatosensation

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: May 10, 2026

Functional Near Infrared Spectroscopy of the Sensory and Motor Brain Regions with Simultaneous Kinematic and EMG Monitoring During Motor Tasks
11:31

Functional Near Infrared Spectroscopy of the Sensory and Motor Brain Regions with Simultaneous Kinematic and EMG Monitoring During Motor Tasks

Published on: December 5, 2014

[Functional neuroanatomy: sensorimotor system].

M Garcia1, C Stippich

  • 1Abteilung für Diagnostische und Interventionelle Neuroradiologie, Klinik für Radiologie und Nuklearmedizin, Universitätsspital Basel, Petersgraben 4, 4031, Basel, Schweiz. meritxell.garcia@usb.ch

Der Radiologe
|June 21, 2013
PubMed
Summary
This summary is machine-generated.

This review explains the sensorimotor system and how functional magnetic resonance imaging (fMRI) maps brain activity. fMRI helps surgeons preserve crucial motor and sensory functions during brain tumor removal.

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Assessment of Sensorimotor Function in Mouse Models of Parkinson's Disease
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Assessment of Sensorimotor Function in Mouse Models of Parkinson's Disease

Published on: June 17, 2013

Measuring and Manipulating Functionally Specific Neural Pathways in the Human Motor System with Transcranial Magnetic Stimulation
09:52

Measuring and Manipulating Functionally Specific Neural Pathways in the Human Motor System with Transcranial Magnetic Stimulation

Published on: February 23, 2020

Related Experiment Videos

Last Updated: May 10, 2026

Functional Near Infrared Spectroscopy of the Sensory and Motor Brain Regions with Simultaneous Kinematic and EMG Monitoring During Motor Tasks
11:31

Functional Near Infrared Spectroscopy of the Sensory and Motor Brain Regions with Simultaneous Kinematic and EMG Monitoring During Motor Tasks

Published on: December 5, 2014

Assessment of Sensorimotor Function in Mouse Models of Parkinson's Disease
10:32

Assessment of Sensorimotor Function in Mouse Models of Parkinson's Disease

Published on: June 17, 2013

Measuring and Manipulating Functionally Specific Neural Pathways in the Human Motor System with Transcranial Magnetic Stimulation
09:52

Measuring and Manipulating Functionally Specific Neural Pathways in the Human Motor System with Transcranial Magnetic Stimulation

Published on: February 23, 2020

Area of Science:

  • Neuroscience
  • Neuroimaging

Context:

  • The sensorimotor system integrates perception, processing, and reaction.
  • Information flows from environmental stimuli through receptors to the central nervous system (CNS).
  • Complex interactions between sensory and motor cortical areas process neural impulses.

Purpose:

  • To describe the functional somatosensory and motor systems.
  • To explore the potential of functional magnetic resonance imaging (fMRI) in neuroscience.
  • To highlight clinical applications of fMRI in neurosurgery.

Summary:

  • Environmental stimuli are processed via receptors to the CNS, involving somatosensory and motor cortical areas.
  • Motor responses are transmitted from the motor cortex through descending tracts to muscles.
  • Functional magnetic resonance imaging (fMRI) visualizes cortical activation, aiding in the assessment of brain tumors and functional preservation.

Impact:

  • fMRI enables precise evaluation of the relationship between brain tumors and critical functional areas.
  • Facilitates optimal surgical planning for maximal tumor resection while preserving motor and somatosensory functions.
  • Allows for the assessment of pathological changes in cerebral activation patterns.