Results 211 to 220 of about 146,206 (254)

Evolution of the Nervous System in Fishes

2007
The notion of a linear Scala naturae in vertebrate brain evolution meanwhile has been replaced by the phyletic (cladistic) method of establishing ancestral and derived brain characters. From this analysis, a Bauplan or morphotype of the vertebrate brain emerges which exhibits many common ancestral neural traits (e.g., cranial nerves, brain subdivisions)
F. Wullimann, Mario, Vernier, Philippe
openaire   +2 more sources

The origin and evolution of the nervous system

The International Journal of Developmental Biology, 2003
The nervous systems of animals as diverse as flies and mice share many conserved features, suggesting that such features were already present in their last common ancestor. As our knowledge of neural development increases, so does the list of conserved features, pointing to the existence of a highly sophisticated, single species as the origin of most ...
openaire   +3 more sources

Events in Early Nervous System Evolution

Topics in Cognitive Science, 2019
AbstractWe propose that neurons and nervous systems evolved among thin, motile, microbe‐eating animals during the Ediacaran period (635–543 million years ago). Spiking neurons evolved from epithelial cells around the margins of Ediacaran microbial mat grazers that initially specialized to detect weak bioelectric fields of nearby animals and to trigger ...
Michael G. Paulin, Joseph Cahill-Lane
openaire   +2 more sources

[Evolution of the nervous system].

Anasthesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie : AINS, 2002
This review tries to establish a synthesis between the comparative/morphological approach and the molecular analysis of ontogenetic processes in development and evolution. We use the formation of the nervous system in metazoans as a paradigm to point out that highly conserved molecular mechanisms may be responsible to generate tissues and organ systems
K P, Sauer, M, Hoch
openaire   +1 more source

Phylogenetic evolution of the vegetative nervous system

Acta Neurovegetativa, 1967
The classification of the vegetative nervous system needs a radical change, according to phylogenetic investigation as a result of recent zoological informations.
openaire   +2 more sources

Evolution of Nervous Systems

2012
This chapter starts by discussing the question of what type of organisms can be happy, concluding that it rests with the capacity to experience feelings, which also implies a capacity for consciousness. Within vertebrates, this feature is presumably limited to amniotes (i.e. reptiles, birds and mammals).
openaire   +1 more source

The Evolution of Nervous Systems

2016
The process of evolution offers the principles required to make sense of life on Earth. The development of nerve cells, some 600 million years ago, was one of the biggest breakthroughs in the history of life. In combination with muscles, it was an obvious success by allowing animals to behave; that is, to move in a desired direction.
openaire   +1 more source

The Evolution of Insect Flight: Implications for the Evolution of the Nervous System

Brain, Behavior and Evolution, 2008
The Insecta encompasses a prodigiously diverse group as measured at the species, family and ordinal levels, but the nervous system bears evidence of conservatism. The early acquisition of flight must have been a major factor in the diversification of body form.
openaire   +2 more sources

Evolution of the arthropod nervous system

Arthropod Structure & Development, 2011
Claudia, Groh, Georg, Mayer
openaire   +2 more sources

Evolution of Myelinated Nervous Systems

2007
It is probably not surprising that the myelinated nervous system and jaws are two characters that originated in the common gnathostome ancestors. For myelination would both allow rapid wielding of powerful jaws and rapid swimming responses as a means to escape.
B.I. Roots, R.M. Gould
openaire   +1 more source