Results 21 to 30 of about 458,582 (324)

Evolutionary aspects of self- and world consciousness in vertebrates

Frontiers in Human Neuroscience, 2015
Although most aspects of world and self-consciousness are inherently subjective, neuroscience studies in humans and non-human animals provide correlational and causative indices of specific links between brain activity and representation of the self and ...
Franco eFabbro, Franco eFabbro, Salvatore M Aglioti, Salvatore M Aglioti, Massimo eBergamasco, Massimo eBergamasco, Andrea eClarici, Jaak ePanksepp   +7 more
doaj   +1 more source

Molecular characterization of nervous system organization in the hemichordate acorn worm Saccoglossus kowalevskii.

PLoS Biology, 2023
Hemichordates are an important group for investigating the evolution of bilaterian nervous systems. As the closest chordate outgroup with a bilaterally symmetric adult body plan, hemichordates are particularly informative for exploring the origins of ...
José M Andrade López, Ariel M Pani, Mike Wu, John Gerhart, Christopher J Lowe   +4 more
doaj   +1 more source

Short and random: Modelling the effects of (proto-)neural elongations [PDF]

, 2017
To understand how neurons and nervous systems first evolved, we need an account of the origins of neural elongations: Why did neural elongations (axons and dendrites) first originate, such that they could become the central component of both neurons and ...
de Wiljes, Oltman O., Keijzer, Fred A., van Elburg, Ronald A. J.   +2 more
core   +3 more sources

Analyses of nervous system patterning genes in the tardigrade Hypsibius exemplaris illuminate the evolution of panarthropod brains

EvoDevo, 2018
Background Both euarthropods and vertebrates have tripartite brains. Several orthologous genes are expressed in similar regionalized patterns during brain development in both vertebrates and euarthropods.
Frank W. Smith, Mandy Cumming, Bob Goldstein   +2 more
doaj   +1 more source

Evolution of basal deuterostome nervous systems [PDF]

Journal of Experimental Biology, 2015
Understanding the evolution of deuterostome nervous systems has been complicated by the ambiguous phylogenetic position of the Xenocoelomorpha (Xenoturbellids, acoel flat worms, nemertodermatids), which has been placed either as basal bilaterians, basal deuterostomes or as a sister group to the hemichordate/echinoderm clade (Ambulacraria), which is a ...
openaire   +2 more sources

First Modern Data on the Lophophore Nervous System in Adult Novocrania anomala and a Current Assessment of Brachiopod Phylogeny

Biology, 2022
Although the lophophore is regarded as the main synapomorphy of all lophophorates, the evolution of the lophophore in certain groups of lophophorates remains unclear.
Elena Temereva
doaj   +1 more source

The role of the nervous system in fish evolution

Frontiers in Marine Science, 2015
The nervous system plays an important role in the evolution and adaptation of animals. All sensory and motor functions as well as cognitive abilities are organized in the brain and spinal cord. Volumetric measurements of different brain regions were made
Michael H Hofmann
doaj   +1 more source

Structural efficiency of percolation landscapes in flow networks [PDF]

, 2007
Complex networks characterized by global transport processes rely on the presence of directed paths from input to output nodes and edges, which organize in characteristic linked components.
A Barrat, A Broder, BL Chen, C Koch, D Segrè, DB Stouffer, DJ Watts, E Fischer, Enrico Scalas, F Vazquez, H Jeong, HW Ma, J Ito, JL Reed, L Freeman, LAN Amaral, LK Gallos, M Boguñá, M Boguñá, M Csete, M Marsili, M. Ángeles Serrano, MA Serrano, MA Serrano, MEJ Newman, MEJ Newman, MEJ Newman, MEJ Newman, P Fronczak, P Holme, Paolo De Los Rios, R Albert, R Guimerà, R Guimerà, R Pastor-Satorras, S Achard, S Maslov, S Sreenivasan, SN Dorogovtsev, SN Dorogovtsev, SN Dorogovtsev, V Latora, X Dimitropoulos   +42 more
core   +5 more sources

Hypoxia in the Initiation and Progression of Neuroblastoma Tumours [PDF]

, 2020
Neuroblastoma is the most frequent extracranial solid tumour in children, causing 10% of all paediatric oncology deaths. It arises in the embryonic neural crest due to an uncontrolled behaviour of sympathetic nervous system progenitors, giving rise to ...
Gómez Muñoz, María Ángeles, Huertas Castaño, Carlos, Pardal Redondo, Ricardo, Vega Moreno, Francisco Manuel   +3 more
core   +1 more source

On the change of growth and wood constructive substances in Salix Koriyanagi which was grown in different soil moisture conditions [PDF]

, 1966
textabstractThe cellular interactions that drive the formation and maintenance of the insulating myelin sheath around axons are only partially understood.
Aunin, Eerik, Driegen, Siska, Fukata, Masaki, Fukata, Yuko, Jaegle, Martine, Kegel, Linde, Leslie, Kris, Meijer, Dies, Watanabe, Masahiko   +8 more
core   +3 more sources