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Principles of Neurobiotaxis
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- March 6, 2009
- 12:00 AM
- 961 views
300 million year old fossil of a fish brain found
by Caio Maximino in Principles of Neurobiotaxis
A fossilized brain has been found, which is an extremely rare event. It is the brain of an inopterygian fish that is 300 million year old. What can be deprehended from it?
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Pradel A, & et al. (2009) Skull and brain of a 300-million-year-old chimaeroid fish revealed by synchrotron holotomography. Proceedings of the National Academy of Sciences USA. DOI: 10.1073/pnas.0807047106
- September 26, 2007
- 12:00 AM
- 1,213 views
Microarrays in evolutionary neuroscience
by Caio Maximino in Principles of Neurobiotaxis
Most comparative genetic studies in the primate lineage – specially the clade that includes humans, chimpanzees and macaques – have concentrated on the identification of genes that underwent significant changes in terms of sequence or in terms of the rate of nucleotide changes. The recent fuzz are the genes microcephalin and ASPM, which seem to regulate brain sizes, whose evolution seem to have been driven by strong positive selection. Microarray studies of those genes demonstrated t........ Read more »
Todd M. Preuss, Mario Cáceres, Michael C. Oldham, & Daniel H. Geschwind. (2004) Human brain evolution: insights from microarrays. Nature Reviews Genetics, 5(11), 850-860. DOI: 10.1038/nrg1469
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