The brain structure and the neural network features of the diurnal cuttlefish Sepia plangon

Summary: Cuttlefish are known for their rapid changes of appearance enabling camouflage and con-specific communication for mating or agonistic display. However, interpretation of their sophisticated behaviors and responsible brain areas is based on the better-studied squid brain atlas. Here we prese...

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Main Authors: Wen-Sung Chung, Alejandra López-Galán, Nyoman D. Kurniawan, N. Justin Marshall
Format: Article
Language:English
Published: Elsevier 2023-01-01
Series:iScience
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2589004222021198
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author Wen-Sung Chung
Alejandra López-Galán
Nyoman D. Kurniawan
N. Justin Marshall
author_facet Wen-Sung Chung
Alejandra López-Galán
Nyoman D. Kurniawan
N. Justin Marshall
author_sort Wen-Sung Chung
collection DOAJ
description Summary: Cuttlefish are known for their rapid changes of appearance enabling camouflage and con-specific communication for mating or agonistic display. However, interpretation of their sophisticated behaviors and responsible brain areas is based on the better-studied squid brain atlas. Here we present the first detailed description of the neuroanatomical features of a tropical and diurnal cuttlefish, Sepia plangon, coupled with observations on ontogenetic changes in its visual and learning centers using a suite of MRI-based techniques and histology. We then make comparisons to a loliginid squid, treating it as a ‘baseline’, and also to other cuttlefish species to help construct a connectivity map of the cuttlefish brain. Differences in brain anatomy and the previously unknown neural connections associated with camouflage, motor control and chemosensory function are described. These findings link brain heterogeneity to ecological niches and lifestyle, feeding hypotheses and evolutionary history, and provide a timely, new technology update to older literature.
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spelling doaj.art-a2ed86f2e390461c892e7d1bb017aed02023-01-22T04:41:26ZengElsevieriScience2589-00422023-01-01261105846The brain structure and the neural network features of the diurnal cuttlefish Sepia plangonWen-Sung Chung0Alejandra López-Galán1Nyoman D. Kurniawan2N. Justin Marshall3Queensland Brain Institute, The University of Queensland, St Lucia, QLD 4072, Australia; Corresponding authorQueensland Brain Institute, The University of Queensland, St Lucia, QLD 4072, AustraliaCentre for Advanced Imaging, The University of Queensland, St Lucia, QLD 4072, AustraliaQueensland Brain Institute, The University of Queensland, St Lucia, QLD 4072, AustraliaSummary: Cuttlefish are known for their rapid changes of appearance enabling camouflage and con-specific communication for mating or agonistic display. However, interpretation of their sophisticated behaviors and responsible brain areas is based on the better-studied squid brain atlas. Here we present the first detailed description of the neuroanatomical features of a tropical and diurnal cuttlefish, Sepia plangon, coupled with observations on ontogenetic changes in its visual and learning centers using a suite of MRI-based techniques and histology. We then make comparisons to a loliginid squid, treating it as a ‘baseline’, and also to other cuttlefish species to help construct a connectivity map of the cuttlefish brain. Differences in brain anatomy and the previously unknown neural connections associated with camouflage, motor control and chemosensory function are described. These findings link brain heterogeneity to ecological niches and lifestyle, feeding hypotheses and evolutionary history, and provide a timely, new technology update to older literature.http://www.sciencedirect.com/science/article/pii/S2589004222021198Biological sciencesNeuroscienceNeuroanatomyCognitive neuroscience
spellingShingle Wen-Sung Chung
Alejandra López-Galán
Nyoman D. Kurniawan
N. Justin Marshall
The brain structure and the neural network features of the diurnal cuttlefish Sepia plangon
iScience
Biological sciences
Neuroscience
Neuroanatomy
Cognitive neuroscience
title The brain structure and the neural network features of the diurnal cuttlefish Sepia plangon
title_full The brain structure and the neural network features of the diurnal cuttlefish Sepia plangon
title_fullStr The brain structure and the neural network features of the diurnal cuttlefish Sepia plangon
title_full_unstemmed The brain structure and the neural network features of the diurnal cuttlefish Sepia plangon
title_short The brain structure and the neural network features of the diurnal cuttlefish Sepia plangon
title_sort brain structure and the neural network features of the diurnal cuttlefish sepia plangon
topic Biological sciences
Neuroscience
Neuroanatomy
Cognitive neuroscience
url http://www.sciencedirect.com/science/article/pii/S2589004222021198
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