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Morphological Aspects of Synaptic Plasticity in Aplysia An Anatomical Substrate for Long‐Term Memory a
Author(s) -
BAILEY CRAIG H.,
CHEN MARY
Publication year - 1991
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1111/j.1749-6632.1991.tb25924.x
Subject(s) - aplysia , neuroscience , columbia university , psychology , annals , cognitive science , psychoanalysis , gerontology , medicine , sociology , classics , history , media studies
The morphological basis of long-term sensitization of the gill-and-siphon withdrawal reflex in Aplysia was explored by examining the structure of identified sensory neuron synapses in control and behaviorally modified animals. Following long-term training, sensitized animals displayed an increase in the number of sensory neuron synapses compared to control animals. The relative permanence of these structural changes and their similarity in time course to the behavioral duration of sensitization suggest a role for synapse number changes during long-term memory.