... in the medicinal leech ( Hirudo verbana ). The electroshock stimuli did not alter the leeches’ responses to nociceptive stimuli, but did cause sensitization to non-nociceptive stimuli, characterized by a reduction in response threshold. These experiments were repeated with drugs that either blocked synthesis...

... for correspondence. 13 06 1995 © The Company of Biologists Limited 1995 axotomy nociceptor recovery of function sensitization memory Aplysia californica Axonal growth is a common reaction to peripheral nerve injury. Injury-induced growth includes regeneration of severed axons (e.g...

.... and Walters , E. T. ( 1989a ). Long-term expansion and sensitization of mechanosensory receptive fields in Aplysia support an activity-dependent model of whole-cell sensory plasticity . J. Neurosci. 9 , 1254 – 1262 . 10.1523/JNEUROSCI.09-04-01254.1989 Billy , A. J. and Walters , E...

.... The system shows habituation and sensitization. The initial gain can be decreased by repetitive sine-wave stimulation of the fCO. Disturbance of the animal (e.g. by tactile stimuli) increases the gain. The gain of the system decreases with increasing stimulus amplitude. The described nonlinearities form...