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cérebro é o órgão mais conservado durante a evolução humana

Enviado: 26 Set 2006, 03:24
por o anátema
Não tenho acesso, mas está aí ao menos a manchete ao menos

Science 30 June 2006:
Vol. 312. no. 5782, p. 1867
DOI: 10.1126/science.312.5782.1867b Prev | Table of Contents | Next

News Focus
HUMAN BEHAVIOR AND EVOLUTION SOCIETY MEETING:
An Evolutionary Squeeze on Brain Size
Constance Holden

PHILADELPHIA, PENNSYLVANIA--Brain volume is evolutionarily more stable than that of any other bodily organ, researchers reported here last week at the Human Behavior and Evolution Society meeting 1 to 2 June.


http://www.sciencemag.org/cgi/content/s ... 5782/1867b

Enviado: 26 Set 2006, 07:59
por Azathoth
Danniel, dá uma olhada nesse:

The nature and origins of consciousness are still a hot topic for cognitive scientists, roboticists, and other researchers. Rodrick Wallace and Roger G. Wallace explore the idea that evolutionary history may be littered with the "fossils" of consciousness. The propose that consciousness is an example of evolutionary convergence in a new draft of their paper, Darwin's rainbow: Evolutionary radiation and the spectrum of consciousness (PDF format). Simply put, convergence refers to the concept that evolution may follow different paths in different species yet arrive at the same destination. They propose that animals with "rapidly shifting, sometimes highly tunable, temporary assemblages of interacting unconscious cognitive modules" exhibit behaviors we recognize as consciousness. They also propose that a mathematically similar phenomenon occurs over much large timescales. They call this slower process paraconsciousness. Though a little math heavy at times, the paper is an interesting read.

http://cogprints.org/5170/01/Animal91.pdf