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Sökning: WFRF:(Schouenborg Jens) > (1995-1999) > Sensorimotor transf...
- Levinsson, AndersLund University,Lunds universitet,Diagnostisk radiologi, Malmö,Forskargrupper vid Lunds universitet,Radiology Diagnostics, Malmö,Lund University Research Groups (författare)
Sensorimotor transformation in cat nociceptive withdrawal reflex system
- Artikel/kapitelEngelska1999
Förlag, utgivningsår, omfång ...
- 1999
Nummerbeteckningar
- LIBRIS-ID:oai:lup.lub.lu.se:806f49c4-dab7-4934-96db-9728d636afa0
- https://lup.lub.lu.se/record/1115307URI
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- Språk:engelska
- Sammanfattning på:engelska
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- SwePubSwePub
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- The withdrawal reflex system of higher vertebrates has been extensively used as a model for spinal sensorimotor integration, nociceptive processing and plasticity. In the rat, the nociceptive withdrawal reflex system appears to have a modular organization. Each reflex module controls a single muscle or a few synergistic muscles, and its cutaneous receptive field corresponds to the skin area withdrawn upon contraction of the effector muscle(s) when the limb is in the standing position. This organization principle is at odds with the 'flexion reflex' concept postulated from cat studies. To assess the generality of the modular organization principle we have therefore re-examined the cutaneous input to the withdrawal reflex system of the cat. The cutaneous receptive fields of hindlimb and forelimb muscles were mapped using calibrated noxious pinch stimulation and electromyographic recording technique in barbiturate anaesthetized animals. The investigated muscles had specific cutaneous receptive fields that appeared to correspond to the area of the skin withdrawn upon contraction of the muscle when the limb is in the standing position. The spatial organization of receptive fields in the cat was similar to that in the rat. However, differences in gain properties of reflexes to some anatomically equivalent muscles in the two species were observed, possibly reflecting adaptations to the biomechanics characteristic of the digitigrade and plantigrade stance in cats and rats, respectively. Implications of the findings for the generality of the modular organization of the withdrawal reflex system and for its adaptive properties are discussed.
Ämnesord och genrebeteckningar
- MEDICIN OCH HÄLSOVETENSKAP Medicinska och farmaceutiska grundvetenskaper Neurovetenskaper hsv//swe
- MEDICAL AND HEALTH SCIENCES Basic Medicine Neurosciences hsv//eng
- motor control
- pain
- receptive field
- somatosensory
- spinal cord
Biuppslag (personer, institutioner, konferenser, titlar ...)
- Garwicz, MartinLund University,Lunds universitet,Neurofysiologi,Forskargrupper vid Lunds universitet,Neurophysiology,Lund University Research Groups(Swepub:lu)mphy-mga (författare)
- Schouenborg, JensLund University,Lunds universitet,Neurofysiologi,Forskargrupper vid Lunds universitet,Neurophysiology,Lund University Research Groups(Swepub:lu)mphy-jsc (författare)
- Diagnostisk radiologi, MalmöForskargrupper vid Lunds universitet (creator_code:org_t)
Sammanhörande titlar
- Ingår i:European Journal of Neuroscience11:12, s. 4327-43321460-9568
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