The Neurobiology of Pain: Symposium of the Northern Neurobiology Group, Held at Leeds on 18 April, 1983

action potentials activity agonist alpha-helix amide-I amplitude anaesthesia anaesthetic agents analgesia analgesic axon barbiturates behaviour block Brain Res brainstem C-fibres Ca2+ caudalis cells channel complex concentration conduction velocity convergence cortex cortical decrease dentine depolarisation depression discharge dorsal horn drugs effects electrical stimulation electrode enkephalin epidural equations equilibrium evoked excitation excitatory extracellular frequency function ganglion headache increase inhibition inhibitory injection input interactions ionic lamina latency layer lesion Lond mechanisms membrane potential menthol migraine molecules monkey morphine muscle myelinated nAChR nerve fibres nervous system neurones nociceptive nociceptors noxious stimuli nucleus occur opioid pathway patient patterns peptides peripheral nerve Physiol postsynaptic produce projection propagation protein pulse receptive fields receptor recorded referred pain response result reticular formation sensation sensory soliton solution spinal cord spinothalamic spinothalamic tract structure studies synapses terminals thalamic reticular thalamic reticular nucleus threshold tissue transmitter trigeminal tubules urethane ventrobasal thalamic visual