Reflex summation in the ipsilateral spinal flexion reflex
نویسندگان
چکیده
منابع مشابه
Spinal interneurons that are selectively activated during fictive flexion reflex.
Behavioral choices in invertebrates are mediated by a combination of shared and specialized circuitry, including neurons that are inhibited during competing behaviors. Less is known, however, about the neural mechanisms of behavioral choice in vertebrates. The spinal cord can appropriately select among several types of limb movements, including limb withdrawal (flexion reflex), scratching, and ...
متن کاملPain catastrophizing is related to temporal summation of pain but not temporal summation of the nociceptive flexion reflex.
Pain catastrophizing is associated with enhanced temporal summation of pain (TS-Pain). However, because prior studies have found that pain catastrophizing is not associated with a measure of spinal nociception (nociceptive flexion reflex [NFR] threshold), this association may not result from changes in spinal nociceptive processes. The goal of the present study in healthy participants was to ex...
متن کاملForward and backward classical conditioning of the flexion reflex in the spinal cat.
Effects of forward and backward conditioned-unconditioned stimulus (CS-US) intervals on classical conditioning of the flexion reflex were examined in a cat spinal preparation. Interstimulus intervals (ISIs) ranging from +3.0 to -3.0 sec were employed in 9 experimental groups and the results compared with those of an explicitly unpaired control group. Forward conditioning produced an asymmetrica...
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Unlike the monosynaptic "stretch" reflex, the exact neuronal pathway for a simple cutaneous reflex has not yet been defined in any vertebrate. In young frog tadpoles, we made whole-cell recordings from pairs of spinal neurons. We found direct, excitatory, glutamatergic synapses from touch-sensitive skin-sensory neurons to sensory pathway interneurons, and then from these sensory interneurons to...
متن کاملEffects of measurement posture and stimulation intensity on the nociceptive flexion reflex (RIII reflex)
[Purpose] The purpose of this study was to examine the effects of the measurement posture and stimulation intensity on the nociceptive flexion reflex (RIII reflex). [Subjects and Methods] Thirty normal female adult subjects were selected for this study. Their RIII reflexes were measured in three positions and with three degrees of stimulation intensity. The measurement posture was randomly sele...
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ژورنال
عنوان ژورنال: The Journal of Physiology
سال: 1930
ISSN: 0022-3751
DOI: 10.1113/jphysiol.1930.sp002630