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Cephalopod Brains: An Overview of Current Knowledge to Facilitate Comparison With Vertebrates.

Shigeno, S; Andrews, PLR; Ponte, G; Fiorito, G (2018) Cephalopod Brains: An Overview of Current Knowledge to Facilitate Comparison With Vertebrates. Front Physiol, 9. p. 952. ISSN 1664-042X https://doi.org/10.3389/fphys.2018.00952
SGUL Authors: Andrews, Paul Lyn Rodney

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Abstract

Cephalopod and vertebrate neural-systems are often highlighted as a traditional example of convergent evolution. Their large brains, relative to body size, and complexity of sensory-motor systems and behavioral repertoires offer opportunities for comparative analysis. Despite various attempts, questions on how cephalopod 'brains' evolved and to what extent it is possible to identify a vertebrate-equivalence, assuming it exists, remain unanswered. Here, we summarize recent molecular, anatomical and developmental data to explore certain features in the neural organization of cephalopods and vertebrates to investigate to what extent an evolutionary convergence is likely. Furthermore, and based on whole body and brain axes as defined in early-stage embryos using the expression patterns of homeodomain-containing transcription factors and axonal tractography, we describe a critical analysis of cephalopod neural systems showing similarities to the cerebral cortex, thalamus, basal ganglia, midbrain, cerebellum, hypothalamus, brain stem, and spinal cord of vertebrates. Our overall aim is to promote and facilitate further, hypothesis-driven, studies of cephalopod neural systems evolution.

Item Type: Article
Additional Information: Copyright © 2018 Shigeno, Andrews, Ponte and Fiorito. This is an open-access article distributed under the terms of the Creative Commons Attribution License https://creativecommons.org/licenses/by/4.0/ (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Keywords: brain, cephalopod, evolution, neural networks, octopus, octopus, cephalopod, brain, evolution, neural networks
SGUL Research Institute / Research Centre: Academic Structure > Molecular and Clinical Sciences Research Institute (MCS)
Journal or Publication Title: Front Physiol
ISSN: 1664-042X
Language: eng
Dates:
DateEvent
20 July 2018Published
18 June 2018Accepted
Publisher License: Creative Commons: Attribution 4.0
PubMed ID: 30079030
Web of Science ID: WOS:000439407000001
Go to PubMed abstract
URI: https://openaccess.sgul.ac.uk/id/eprint/110065
Publisher's version: https://doi.org/10.3389/fphys.2018.00952

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