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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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Assessing Corticospinal Excitability During Goal-Directed Reaching Behavior
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Task-Related Sensorimotor Adjustments Increase the Sensory Range in Electrolocation.

Federico Pedraja1, Volker Hofmann1,2, Julie Goulet1

  • 1AG Active Sensing, Faculty of Biology/Cluster of Excellence Cognitive Interaction Technology, Bielefeld University, D-33501 Bielefeld, Germany, and.

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience
|December 11, 2019
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Summary
This summary is machine-generated.

Motor control actively shapes sensory input, enhancing perception. Electric fish learn by adjusting motor behaviors, improving their electrosensory perception and range to overcome neural limitations.

Keywords:
active sensingbehaviorclosed-loop controlelectrolocationelectroreceptorslearning

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Area of Science:

  • Neuroscience
  • Animal Behavior
  • Sensory Systems

Background:

  • Perception and motor control are often studied in isolation.
  • Active sensory systems highlight the interdependence of motor actions and sensing.

Purpose of the Study:

  • Investigate how weakly electric fish (Gnathonemus petersii) adjust sensing and motor behavior during perceptual learning.
  • Determine if motor adjustments enhance sensory input and performance.

Main Methods:

  • Observed sensorimotor behavior of Gnathonemus petersii during a perceptual learning task.
  • Modeled electrosensory input to quantify the impact of behavioral adjustments.
  • Examined neuronal detection thresholds in medullary electrosensory neurons.

Main Results:

  • Systematic motor behavior adjustments correlated with improved task performance.
  • Behavioral changes led to enhanced electrosensory input.
  • Improved sensory input helped overcome neural detection limitations, expanding sensory range.

Conclusions:

  • Motor control is an active participant in sensory learning.
  • Understanding motor contributions to sensing is vital for comprehending behavior.
  • Sensorimotor adjustments are crucial for optimizing sensory perception and range.