Construct · 1 fields · 1 citations

scratch: a standalone construct

One name. One construct. A landmark on the map.

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scratch1 CONSTRUCTScratch reflexSHERRINGTON · 1906

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Neurophysiology

A spinal reflex that scratches an irritated spot

The scratch reflex is a coordinated, rhythmic hind-limb movement that a spinal animal produces to remove an irritant from a particular patch of skin, organised entirely by spinal-cord circuitry without the brain. Sherrington's 1906 Observations on the scratch-reflex in the spinal dog mapped how a stimulus within a receptive field of skin drives alternating flexion and extension aimed at that point, a classic demonstration of reflex coordination and the integrative action of the nervous system. The referent is a motor-pattern reflex indexed to a skin receptive field, not a billiards foul or a children's programming language.[1]

Unit
The rhythmic limb movement elicited by skin irritation and the receptive field that drives it
Recovery means
Not applicable
Measured by
Characterised by the latency, rhythm, and spatial aiming of the limb movement toward the stimulated receptive field

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Nearby constructs

stun1 fields · 1 citationsanchor · a standalone constructsafety2 fields · 2 citationsjingle · one word, two constructspatch1 fields · 2 citationsanchor · a standalone construct

References

  1. Sherrington, C. S. (1906). Observations on the scratch-reflex in the spinal dog. The Journal of Physiology, 34(1–2), 1–50. https://doi.org/10.1113/jphysiol.1906.sp001139

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