The researchers scanned the skulls with computed tomography (CT) scans, creating three - dimensional, virtual endocasts of the brain, based on the impressions brain tissue and spaces left on the inside of the skull. (sciencemag.org)
At the time, Falk argued that four endocasts from southern African hominids — three Australopithecus africanus and one Australopithecus sediba — showed folding patterns that suggested that brain reorganization was underway as early as 3 million years ago in a frontal area involved in human speech production. (sciencenews.org)
A 3D virtual endocast was rendered from CT - scans of MLDG 1704 (Figure 11A — D; Figures S1, S2, S3, S4). (journals.plos.org)