PS263 Lecture Notes - Lecture 14: Brain-Derived Neurotrophic Factor, Caffeine, Invertebrate
Document Summary
12. 2 storing information in the nervous system: blind alleys and abandoned mines. 1. hebbian synapse: a synapse that increases in effectiveness because of simultaneous activity in the presynaptic and postsynaptic neurons: single-cell mechanisms of invertebrate behavior change. 1. aplysia as an experimental behavior change: aplysia is a marine invertebrate related to the common slug, often used for physiological studies of learning aplysia have fewer neurons than any vertebrate, and many are large and easy to study. A commonly studied behavior in the aplysia is the gill withdrawal response. 2. habituation in aplysia: habituation: a decrease in response to a stimuli that is presented repeatedly and is accompanied by no change in other stimuli. Habituation in aplysia reflects a change in the synapse between the sensory neuron and a motor neuron. 3. sensitization in aplysia: sensitization: an increase in response to a mild stimulus after an intense stimulus has been presented.
