Table 1.

Volume of amygdala, hippocampus, and striatum in hominoid species collected with stereological methods.

Species	Amygdala					Hippocampus	Striatum
	Lateral	Basal	Accessory basal	Central	Total
Homo sapiens*,a	0.551*	0.452*	0.188*	0.039	2.031*	5.180	9.551
Homo sapiens*,a	–	–	–	–	–	–	12.223
Pan troglodytes*,a	0.138*	0.224*	0.070*	0.065	0.685*	1.772	5.159
Pan troglodytes*,a	0.126*	0.183*	0.070*	0.056	0.584*	1.520	4.373
Pan troglodytesb	0.115	0.176	0.066	0.037	0.571	–	–
Pan troglodytesb	0.095	0.117	0.047	0.024	0.417	–	–
Pan troglodytesb	0.165	0.263	0.064	0.049	0.749	–	–
Pan paniscus*,a	0.164*	0.191*	0.066*	0.042	0.634*	1.710	5.645
Pan paniscus*,a	0.124*	0.223*	0.070*	0.032	0.623*	1.595	4.400
Gorilla gorilla*,a	0.100*	0.247*	0.096*	0.037	0.651*	1.350	4.626
Gorilla gorillab	0.167	0.266	0.112	0.053	0.867	–	–
Gorilla gorillab	0.137	0.170	0.105	0.043	0.645	–	–
Pongo pygmaeus*,a	0.124*	0.228*	0.062*	0.047	0.637*	1.255	–
Pongo pygmaeus*,a	0.105*	0.151*	0.052*	0.036	0.520*	1.415	3.689
Pongo pygmaeusa	0.157	0.171	0.071	0.030	0.638	–	–
Pongo pygmaeusb	0.156	0.171	0.067	0.045	0.725	–	–
Pongo pygmaeus,a	–	–	–	–	–	1.645	4.498
Hylobates lar*,a	0.046*	0.063*	0.021*	0.009	0.203*	0.805	1.510
Nomascus concolor*,a	0.060*	0.086*	0.022*	0.012	0.270*	0.950	1.994
Hylobates muellerib	0.069	0.079	0.030	0.017	0.256	–	–

Data represent one hemisphere in each individual hominoid specimen measured in cubic centimeters (cc). Cases were either:

^aparaffin embedded (for processing information see Semendeferi et al., 1998 and Barger et al., 2007) or

^bcryosectioned (for processing information see Barger et al., 2012).

Not all cases could be included in all analyses due either to incomplete representation of the region of interest in the series or variation in processing (e.g., sectioning angle) that may affect the precision of anatomical delineations (–). Cases included in Barger et al. (2007) are marked with an ^*.