Protomap (neuroscience)

Protomap (from prototype and map[1]) is a hypothetical map in the ventricular zone of the brain.[2] This map can be seen as series of columns on the surface of the cerebral ventricles that after migrating to the cortex end up in the same orderly arrangement as the units in which they originated.[3]
The term protomap was coined by Pasko Rakic.[4] The protomap hypothesis is opposed by the protocortex hypothesis, which proposes that cortical neurons initially have the same potential,[5] and that regionalization in large part is controlled by external influences, such as inputs from the thalamus to the cortex.[6]

References

  1. ↑ http://www.dana.org/news/brainhealth/detail.aspx?id=10050
  2. ↑ Whishaw, Ian Q.; Brian Kolb (2008). Fundamentals of Human Neuropsychology. New York: Worth Publishers. ISBN 0-7167-9586-8.
  3. ↑ Ackerman, Sandra (1992). Discovering the brain. Washington, D.C: National Academy Press. ISBN 0-309-04529-0.
  4. ↑ Rakic P (July 1988). "Specification of cerebral cortical areas". Science 241 (4862): 170–6. doi:10.1126/science.3291116. PMID 3291116.
  5. ↑ Cognitive Neuroscience of Development (Studies in Developmental Psychology). East Sussex: Psychology Press. 2003. ISBN 1-84169-214-X.
  6. ↑ Sun T, Walsh CA (August 2006). "Molecular approaches to brain asymmetry and handedness". Nature Reviews Neuroscience 7 (8): 655–62. doi:10.1038/nrn1930. PMID 16858393. Glossary


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