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Single-neuron analysis of aging-associated changes in learning reveals impairments in transcriptional plasticity. [PDF]

open access: yesAging Cell
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Ultrastructure of the eye of Aplysia

Journal of Ultrastructure Research, 1972
The eye and optic nerve of the sea hare, Aplysia californica , were examined with the light and electron microscopes. The eye is a closed vesicle type with a spheroidal lens nearly completely surrounded by the retina. It contains several thousand receptor, pigmented, and other cells.
J W, Jacklet, R, Alvarez, B, Bernstein
openaire   +2 more sources

Indented synapses in Aplysia

Brain Research, 1979
A new type of synaptic contact has been found in Aplysia californica, in which a post-synaptic spine extensively invaginates the pre-synaptic element. The post-synaptic spine, usually less than 0.25 micrometer in diameter, may protrude up to 2 micrometer into the pre-synaptic element.
C H, Bailey, E B, Thompson
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