The ultrastructure of a cerebellar analogue in octopus

@article{Woodhams1977TheUO,
  title={The ultrastructure of a cerebellar analogue in octopus},
  author={Peter L. Woodhams},
  journal={Journal of Comparative Neurology},
  year={1977},
  volume={174}
}
  • P. Woodhams
  • Published 15 July 1977
  • Biology, Medicine
  • Journal of Comparative Neurology
The peduncle lobe of Octopus, a centre concerned with regulating motor behaviour primarily on the basis of visual cues, though it also receives a “labyrinthine” or statocyst input, has been examined for the first time in the electron microsope. In the lower part of the lobe, the basal zone, there are large “motor” cells up to 20 μm across with a rounded, pale nucleus and a large perikaryon; there are also smaller cells, 4‐10 μm in diameter with a dark irregularly‐shaped nucleus. The latter… Expand
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The statocyst-oculomotor system of Octopus includes two pathways from the statocySt equilibrium receptor organs to the motoneurons of the eyes: one direct pathway, and another indirect path via higher integrative centres where visual information about movement is combined with that coming from thestatocysts. Expand
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TLDR
Lesions to the anterior basal lobe were made by an electrolytic method and the animals were allowed to attack their prey in an unrestricted way so that motor defects, functional recovery and the emergence of new adaptative behavioural strategies could be studied. Expand
The Octopus: A Model for a Comparative Analysis of the Evolution of Learning and Memory Mechanisms
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The emerging results suggest that a convergent evolutionary process has led to the selection of vertebrate-like neural organization and activity-dependent long-term synaptic plasticity in octopuses and vertebrates, and suggests the importance of the shared properties for the mediation of learning and memory. Expand
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