Table 3.
Two sample, two tailed t-test between the relative volumes of male (n = 24) and female (n = 17) groups. The second column indicates the p-value obtained from the t-test. Significance between relative size of regions between males and females is denoted by an asterisk in the third column. The third column indicates the direction of greater relative volume. Of specific interest is the cortex with females having significantly (p < 0.0001) larger relative cortex than males.
| Ventricular Structures | P-Value | Direction of Greater Relative Volume |
|---|---|---|
| Aqueduct | 1.57E-02 | Male |
| Fourth Ventricle | 7.68E-05 | Female* |
| Lateral Ventricle | 8.28E-03 | Female |
| Third Ventricle | 2.64E-02 | Female |
| Grey Matter Structures | P-Value | Direction of Greater Relative Volume |
| Basal Forebrain | 3.81E-02 | Male |
| Bed Nucleus of the Stria Terminalis | 1.31E-05 | Female* |
| Caudoputamen | 7.53E-14 | Male* |
| Cerebellar Lobule 1/2 | 4.53E-03 | Female |
| Cerebellar Lobule 10 | 5.89E-01 | Male |
| Cerebellar Lobule 3 | 5.32E-02 | Female |
| Cerebellar Lobule 4/5 | 1.52E-01 | Female |
| Cerebellar Lobule 6 | 1.16E-01 | Male |
| Cerebellar Lobule 7 | 3.13E-01 | Female |
| Cerebellar Lobule 8 | 9.05E-01 | Male |
| Cerebellar Lobule 9 | 5.47E-04 | Male* |
| Cochlear Nucleus | 3.85E-01 | Female |
| Copula | 1.64E-07 | Male* |
| Cortex | 9.72E-06 | Female* |
| Crus 1 Ansiform Lobule | 1.19E-01 | Female |
| Crus 2 Ansiform Lobule | 2.28E-01 | Female |
| Dentate Gyrus | 4.50E-03 | Female |
| Dentate Nucleus | 9.31E-01 | Male |
| Entopeduncular Nucleus | 2.95E-01 | Male |
| Fastigial Nucleus | 6.40E-01 | Female |
| Flocculus | 6.63E-01 | Male |
| Globus Pallidus | 7.04E-05 | Male* |
| Hindbrain | 1.69E-01 | Female |
| Hippocampal CA Subfields | 8.22E-02 | Male |
| Hypothalamus | 3.40E-01 | Female |
| Inferior Colliculus | 1.41E-05 | Female* |
| Interposed Nucleus | 1.00E-01 | Female |
| Lateral Septum | 5.90E-05 | Female* |
| Mammillary bodies | 3.30E-02 | Female |
| Medial Septum | 2.45E-03 | Female |
| Median Preoptic Nucleus | 2.20E-05 | Female* |
| Midbrain | 1.32E-01 | Female |
| Nucleus Accumbens | 6.29E-09 | Male* |
| Olfactory Nuclei | 2.98E-01 | Female |
| Paraflocculus | 5.46E-01 | Male |
| Paramedian Lobule | 4.29E-01 | Female |
| Periaqueductal Grey | 2.45E-07 | Male* |
| Pons | 5.97E-01 | Female |
| Simple Lobule | 6.41E-02 | Female |
| Subfornical Organ | 2.50E-02 | Male |
| Substantia Nigra | 3.73E-01 | Male |
| Superior Colliculus | 3.12E-02 | Female |
| Thalamus | 5.48E-09 | Female* |
| Ventral Pallidum | 1.63E-04 | Female* |
| White Matter Structures | P-Value | Direction of Greater Relative Volume |
| Anterior Part of the Anterior Commissure | 1.56E-04 | Female* |
| Cerebellar White Matter and Arbor Vitae | 6.06E-01 | Male |
| Cerebral Peduncle | 2.98E-03 | Female |
| Cingulum | 7.00E-01 | Female |
| Commissure of the Inferior Colliculus | 3.70E-07 | Male* |
| Commissure of the Superior Colliculus | 3.89E-01 | Female |
| Corpus Callosum and External Capsule | 4.22E-02 | Male |
| External Medullary Lamina | 5.40E-01 | Female |
| Fasciculus Retroflexus | 6.13E-03 | Female |
| Fimbria | 6.64E-01 | Female |
| Fornix | 9.80E-04 | Male |
| Internal Capsule | 1.51E-03 | Female |
| Intrabulbar Part of the Anterior Commissure | 2.28E-04 | Female* |
| Lateral Olfactory Tract | 5.50E-03 | Female |
| Mammillothalamic Tract | 4.37E-06 | Female* |
| Optic Chiasm | 2.26E-06 | Male* |
| Optic Tract | 4.34E-04 | Male* |
| Posterior Commissure | 9.84E-01 | Female |
| Posterior Part of the Anterior Commissure | 3.70E-01 | Male* |
| Stria Medullaris of the Thalamus | 4.36E-03 | Female |
| Stria Terminalis | 3.92E-01 | Female |
| Superior Thalamic Radiation | 9.51E-03 | Female |
| Trochlear Nerve | 6.25E-06 | Female* |