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. Author manuscript; available in PMC: 2011 Nov 15.
Published in final edited form as: Neuroimage. 2010 Feb 20;53(3):1103–1108. doi: 10.1016/j.neuroimage.2010.02.020

Table One.

Brain Phenotypes and Genetic Parameters for Baboons and Humans

Baboons Humans
Mean Cerebral Volume (cc, after spatial normalization) 195.4 1676.1
Mean Gyrification Index (GI) 1.89 2.29
Mean Surface Area (after spatial normalization) 195.3 1880.0
Heritability (h2) of Cerebral Volume 0.85 (p=0.0012) 0.52 (p=0.00005)
Heritability (h2) of Gyrification Index 0.71 (p=0.0021) 0.30 (p=0.018)
Heritability (h2) of Surface Area 0.76 (p=0.001) 0.42 (p=0.001)
Genetic Correlation: Volume vs. GI -0.77 (p=0.045) -0.73 (p=0.045)
Genetic Correlation: Surface Area vs. GI -0.56 (p=0.07) -0.60 (p=0.14)