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Related Concept Videos

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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Sensory Modalities01:15

Sensory Modalities

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Sensation typically is the process by which the sensory receptors and sense organs detect stimuli from the internal and external environment and transmit this information to the central nervous system for processing.
General senses refer to the broad category of sensory information detected by receptors in the body and can be further grouped into somatic and visceral senses. Somatic sensations include touch, pressure, temperature, and pain and are essential for navigating our environment and...
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Major Somatic Sensory Pathways01:28

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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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Sensory Perception: Organization of the Somatosensory System01:11

Sensory Perception: Organization of the Somatosensory System

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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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Reflex Activity01:08

Reflex Activity

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A reflex activity is an automatic, involuntary response to specific stimuli. It is a part of our survival mechanism, designed to protect us from potential harm. For example, when a bright light suddenly shines into our eyes, we instinctively close them or look away. This is a simple reflex activity orchestrated by the nervous system without conscious thought or effort.
A reflex exam is a diagnostic procedure performed by a healthcare professional to evaluate the functionality of a patient's...
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Tactile and Chemical Senses01:27

Tactile and Chemical Senses

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Tactile senses encompass touch, temperature, and pain, each mediated by specific receptors. Touch receptors detect mechanical energy or pressure against the skin. Sensory fibers from these receptors enter the spinal cord and relay information to the brain stem. Here, most fibers cross over to the opposite side of the brain. The touch information then moves to the thalamus, which projects a map of the body's surface onto the somatosensory areas of the parietal lobes in the cerebral cortex.
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Related Experiment Video

Updated: Feb 19, 2026

Design, Fabrication, and Administration of the Hand Active Sensation Test HASTe
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Design, Fabrication, and Administration of the Hand Active Sensation Test HASTe

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Sensation during Active Behaviors.

Laura Busse1, Jessica A Cardin2, M Eugenia Chiappe3

  • 1Division of Neurobiology, Department Biology II, LMU Munich 82151, Germany, aman.saleem@ucl.ac.uk busse@bio.lmu.de.

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience
|November 10, 2017
PubMed
Summary
This summary is machine-generated.

Sensory processing is dynamically shaped by active behaviors like walking. This review explores how neural circuits in insect vision and rodent sensory systems adapt to enhance sensory function during movement and attention.

Keywords:
brain statelocomotionremappingsensory codingstate-dependent processingtask-dependent processing

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Area of Science:

  • Neuroscience
  • Sensory Systems Biology
  • Behavioral Neuroscience

Background:

  • Active behaviors, such as locomotion and attention, significantly influence sensory experience.
  • Sensory systems exhibit remarkable plasticity, with neural processing modulated by ongoing behavior.
  • Understanding these modulations is crucial for comprehending sensory perception in naturalistic settings.

Purpose of the Study:

  • To review recent findings on how active behaviors modulate sensory processing.
  • To explore the circuit-level mechanisms underlying these behavioral modulations.
  • To discuss the functional significance of sensory modulation during active behaviors.

Main Methods:

  • Literature review of studies investigating sensory processing during active behaviors.
  • Analysis of findings across diverse sensory systems, including insect vision and rodent sensory cortices.
  • Discussion of circuit-level mechanisms and their implications for sensory function.

Main Results:

  • Behavior dynamically shapes sensory processing through mechanisms like altered responsiveness, tuning, and functional connectivity.
  • Modulation of sensory processing during active behaviors is observed in insect vision, rodent thalamus, and rodent sensory cortices.
  • Circuit-level mechanisms, including changes in neural responses and network dynamics, underlie these behavioral influences.

Conclusions:

  • Active behaviors play a critical role in shaping sensory information processing.
  • Understanding the neural basis of sensory modulation during behavior is key to advancing sensory neuroscience.
  • Future research should focus on elucidating open questions and exploring new perspectives in this rapidly developing field.