PSYC 340 Lecture Notes - Lecture 7: Parapodium, Structural Change, Aplysia
30 Sep 2016
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What are some problems with studying the neurobiological mechanism of learning in a vertebra: we have 100s of neurons, there are many connections, they are so small and it makes studying them difficult. Why are vertebrae neurons so small: in order to store a lot of information, the system was forced to become smaller. Why is the giant squid a good candidate to study the neurobiological mechanisms of learning: the axons are huge, there is rapid conduction, microbiologists are able to get in there and study how it works. 2 kinds of single stimulus learning: habituation- reduction in response, sensitization- enhancement in response. Giant slug, size of a rat: advantages: simple nervous system, large neurons, invariant neuralanatomy, not sophisticated, less neurons, how do scientist get into the aplysia when they need to study it. They pull back their parapodia: habituation in aplysia.
