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  • Title: [Individual characteristics of the nociceptive sensitivity of rats during the formation of a negative emotional reaction].
    Author: Bykova EV, Polyntsev IuV, Rogatina EL, Samko IuN.
    Journal: Zh Vyssh Nerv Deiat Im I P Pavlova; 1988; 38(4):738-43. PubMed ID: 3195234.
    Abstract:
    Changes in dynamics of nociceptive sensitivity in male rats of Wistar strain were studied during formation of negative emotional reaction. The procedure of blood's taking from the tail after its tip's amputation was used as negative emotional factor. The animals were divided into six groups by the criterion of individual properties of nociceptive sensitivity dynamics. On the whole it was found to decrease. Besides, one more group (the seventh group) was found with profound hypoalgesia caused by action of the negative emotional factor. It was also shown that formation of negative emotional reaction in two groups was not accompanied by changes of nociception. The data suggest a selective influence of negative emotional factor on nociceptive sensitivity.
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