| Value |
1e+11
unitless
|
| Organism |
Human Homo sapiens |
| Reference |
link |
| Primary Source |
Pakkenberg B, Gundersen HJ, Mortensen EL, Lauritzen MJ, Jeune B, Regeur L, West MJ, Schwartz TW. [The normal brain: a new knowledge in different fields] Ugeskr Laeger. 1997 Feb 3 159(6):723-7.PubMed ID9045457
|
| Method |
In a quantitative analysis of human cortex using the optical dissector, Pakkenberg and Gundersen (1997) have shown that the number of neocortical neurons ranges from 15 to 31 billion and averages about 21 billion. Other forebrain structures—primarily the hippocampal region, basal ganglia, and thalamus—are likely to contain an additional 5–8 billion neurons. Total neuron number in humans therefore probably averages 95–100 billion. |
| Comments |
See also R.W. Williams and K. Herrup, Ann. Review Neuroscience, 11:423-453, 1988. See BNID 106322 |
| Entered by |
Daniel Ramot |
| ID |
100690 |