Static and dynamic activity of cutaneous cold receptors induced by noradrenaline infusion

Experiments on rats showed that cutaneous cold receptors are sensitive to altered blood level of noradrenaline (NA). Both rise in and re-establishing of NA at a new, higher level exert an effect on firing activity in cutaneous cold receptors. When sustained at the raised level, NA alters both static and dynamic activity of cold receptors. The pattern of change (whether excitatory or inhibitory) depends on initial type of receptor activity.Institute of Higher Nervous Activity and Neurophysiology, Academy of Sciences of the USSR, Moscow. Translated from Neirofiziologiya, Vol. 22, No. 1, pp. 69–75, January–February, 1990.