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Related Concept Videos

Synesthesia01:27

Synesthesia

Synesthesia is a remarkable condition where stimulation of one sensory or cognitive pathway leads to automatic, involuntary experiences in a second sensory or cognitive pathway. People with synesthesia experience a blending or crossing of their senses, such as sight and sound, leading to cross-modal sensations. In this condition, the stimulation of one sense, such as hearing a number or musical note, triggers an experience of another sense, like sensing a specific color, taste, or smell. People...
Sensory Perception: Organization of the Somatosensory System01:11

Sensory Perception: Organization of the Somatosensory System

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 stimulus...
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...
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.
Nonconscious Mimicry01:13

Nonconscious Mimicry

Nonconscious mimicry occurs when individuals alter their mannerisms to match the behaviors and expressions of those nearby, without intention.
Introduction to Special Senses01:26

Introduction to Special Senses

Sensory receptors play an integral part in comprehending our external and internal environments. They receive diverse stimuli, converting them into the nervous system's electrochemical signals. This conversion occurs as the stimulus alters the sensory neuron's cell membrane potential, instigating the generation of an action potential. This action potential is subsequently transmitted to the central nervous system (CNS), which integrates with other sensory data or higher cognitive functions.

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Related Experiment Video

Updated: May 31, 2026

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder
09:13

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder

Published on: April 22, 2015

Synchrony in sensation.

Randy M Bruno1

  • 1Department of Neuroscience and the Kavli Institute for Brain Science, Columbia University, New York, NY 10032, USA. rb2604@columbia.edu

Current Opinion in Neurobiology
|July 5, 2011
PubMed
Summary
This summary is machine-generated.

Neurons use synchrony to transmit sensory information between the thalamus and cortex. This timing-sensitive neural code relies on feedforward inhibition and may be widespread in the brain.

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Area of Science:

  • Neuroscience
  • Computational Neuroscience
  • Systems Neuroscience

Background:

  • Neural coding, the mechanism by which neurons encode information, remains a significant area of debate.
  • Understanding neural communication is crucial for deciphering brain function, particularly in sensory processing.

Purpose of the Study:

  • To review the transmission of sensory information through the thalamocortical circuit.
  • To explore the role of synchrony and inhibition in neural coding within this pathway.

Main Methods:

  • Review of existing literature on thalamocortical circuitry.
  • Analysis of the role of feedforward inhibition in sensory processing.
  • Discussion of neuromodulatory and feedback mechanisms influencing temporal sensitivity.

Main Results:

  • The thalamocortical circuit exhibits high sensitivity to thalamic synchrony due to strong feedforward inhibition.
  • Neuromodulators and feedback connections can modulate temporal sensitivity and control synchrony propagation.
  • Feedforward inhibitory circuits are prevalent, suggesting widespread use of synchrony and timing-sensitive codes.

Conclusions:

  • Synchrony-based neural codes are likely a fundamental mechanism for sensory information transmission.
  • Timing-sensitive circuits, mediated by feedforward inhibition, are prevalent throughout the central nervous system.
  • The principles governing thalamocortical sensory processing may extend to other brain regions and functions.