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. Author manuscript; available in PMC: 2010 Mar 4.
Published in final edited form as: Acta Neuropathol. 2008 Jul 19;117(4):369–384. doi: 10.1007/s00401-008-0410-2

Table 3.

Findings of previous studies of the number of neurons in the human LGN

Study n Ntot NM NP
Balado and Franke, 1937 [10] 1 568,845 86,181 482,664
Chacko, 1948 [21] 1 1,210,000 111,000 1,099,000
Sullivan et al., 1958 [74] 1 1,018,190
Kupfer et al., 1967 [52] 1 1,043,000 62,500 980,500
Armstrong, 1979 [9] 2 2,172,000
Khan et al., 1993 [49] 2 1,680,000
Selemon and Begović, 2007 [64] 30 3,476,698 565,835 2,910,863
Current study 29 1,990,000 244,000 1,740,000

n is number of subjects, while Ntot, NM, and NP the estimated mean neuron numbers of the whole LGN, the magnocellular region, and parvocellular region, respectively. The study by Khan et al. was based upon brains from two late gestational fetuses (gestational age of 34–35 weeks). For the last two studies the values represent all subjects across all diagnostic groups as neither study found significant group differences. Only the last two studies were based upon unbiased stereological techniques

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