SOCR Data April2009 ID NI
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SOCR Datasets - Neuroimaging study of Prefrontal Cortex Volume across Species and Tissue Types
Data Overview
The prefrontal cortex is the anterior part of the frontal lobes of the brain in front of the premotor areas. Prefrontal cortex includes cytoarchitectonic layer IV and includes three regions: orbitofrontal (OFC), dorsolateral prefrontal cortex (PFC), anterior and ventral cingulate cortex. Human brains are much distinct from the brains of other primates and apes specifically in the prefrontal cortex. These structural differences induce significant functional abilities which may account for the significant associating, planning and strategic thinking in humans, compared to other primates. The study below investigated the quantitative differences between the PFC volumes across species and tissue types.
Data Description
- ICV – intracranial volume
- PFC – prefrontal cortex
- GM – gray matter
- Total – total volume
- WM – white matter
- SEM – standard error of the mean
Data: Total, GM and WM volumes of ICV and PFC across species
| Cerebrum ICV (mm3) | PFC (mm3) | % PFC/ICV | |||||
|---|---|---|---|---|---|---|---|
| Total | GM | WM | Total | GM | WM | ||
| Human | 1,206,129 | 535,956 | 670,174 | 156,443 | 82,346 | 74,097 | 12.97067 |
| Bonobo | 272,837 | 125,469 | 147,368 | 25,374 | 15,382 | 9,993 | 9.300058 |
| Chimpanzee | 277,843 | 123,858 | 153,985 | 30,324 | 17,234 | 13,091 | 10.91408 |
| Gorilla | 389,681 | 170,505 | 219,176 | 41,655 | 23,419 | 18,235 | 10.68951 |
| Orangutan | 333,075 | 154,293 | 178,781 | 33,763 | 21,193 | 12,570 | 10.13676 |
| Gibbon | 65,938 | 32,418 | 33,520 | 6,302 | 3,994 | 2,307 | 9.557463 |
| Mangabey | 82,495 | 37,985 | 44,510 | 6,599 | 3,804 | 2,794 | 7.999273 |
| Baboon | 130,600 | 58,615 | 71,985 | 11,660 | 6,530 | 5,130 | 8.928025 |
| Macaca | 69,875 | 31,841 | 38,034 | 5,579 | 2,813 | 2,766 | 7.984258 |
| Capuchin | 58,581 | 29,358 | 29,223 | 5,835 | 3,293 | 2,542 | 9.960567 |
| Squirrel(monkey) | 21,542 | 9,785 | 11,756 | 1,820 | 1,094 | 727 | 8.448612 |
Data: Average percentage of cortical measure designated prefrontal
| Total (mm3) | GM (mm3) | WM | ||||
|---|---|---|---|---|---|---|
| mean | SEM | mean | SEM | mean | SEM | |
| Human | 12.97 | 0.3 | 14.4 | 0.3 | 10.9 | 0.4 |
| Bonobo | 9.30 | 0.3 | 11.9 | 0.4 | 6.8 | 0.4 |
| Chimpanzee | 10.91 | 0.8 | 14.1 | 1.1 | 8.3 | 0.7 |
| Gorilla | 10.68 | 0.5 | 13.7 | 0.8 | 8.3 | 0.2 |
| Orangutan | 10.13 | 0.6 | 14.1 | 0.5 | 7.5 | 0.6 |
| Gibbon | 9.55 | 0.7 | 12.3 | 1.2 | 6.9 | 0 |
| Mangabey | 7.99 | 0.6 | 9.8 | 0.7 | 6.2 | 0.8 |
| Baboon | 8.92 | 1.4 | 11.2 | 0.5 | 7.5 | 2 |
| Macaca | 7.98 | 0.6 | 8.8 | 0.3 | 7.3 | 0.9 |
| Capuchin | 9.96 | 0.1 | 11.4 | 0.5 | 8.6 | 0.2 |
| Squirrel(monkey) | 8.44 | 0.6 | 10.6 | 1 | 6.3 | 0.3 |
References
- Schoenemann, PT., Sheehan, MJ., Glotzer, DL. (2005) Prefrontal white matter volume is disproportionately larger in humans than in other primates. Nature Neuroscience, 8, 242–252. doi:10.1038/nn1394.
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