The Brain of Prehistoric Man

Endocast of Sambungmacan 3 (Sm 3): A new Homo erectus from Indonesia

“…This indicates that differences between the frontal lobes of apes and humans lie not in the total area that this lobe occupies relative to the rest of the brain, but instead to the underlying complexity of the lobe (Semendeferi et al, 1997). While others have attempted to derive features of particular gyri and sulci from the frontal lobe of H. erectus endocasts (Kappers, 1933;Kappers and Bouman, 1939;Tilney, 1927), assessment of precise cerebral surface features is limited (Holloway, 1978). The endocranial surface morphology of Sm 3 is reduced compared to other Indonesian fossils, but a few features are markedly pronounced.…”

“…In describing the endocast of Trinil 2 (H. erectus I), Tilney (1927) positioned H. erectus far above gorilla but below modern humans. With one of the more detailed endocast descriptions of that time, he considered the frontal lobe of H. erectus to be well developed.…”

“…With one of the more detailed endocast descriptions of that time, he considered the frontal lobe of H. erectus to be well developed. In addition, Tilney regarded the morphology of the inferior frontal lobe as evidence that H. erectus "had learned to speak-to communicate in verbal language" (Tilney, 1927). Tilney's enthusiasm for the mental capacity of H. erectus in Indonesia was not echoed by others of the time.…”

Endocast of Sambungmacan 3 (Sm 3): A new Homo erectus from Indonesia

“…This indicates that differences between the frontal lobes of apes and humans lie not in the total area that this lobe occupies relative to the rest of the brain, but instead to the underlying complexity of the lobe (Semendeferi et al, 1997). While others have attempted to derive features of particular gyri and sulci from the frontal lobe of H. erectus endocasts (Kappers, 1933;Kappers and Bouman, 1939;Tilney, 1927), assessment of precise cerebral surface features is limited (Holloway, 1978). The endocranial surface morphology of Sm 3 is reduced compared to other Indonesian fossils, but a few features are markedly pronounced.…”

“…In describing the endocast of Trinil 2 (H. erectus I), Tilney (1927) positioned H. erectus far above gorilla but below modern humans. With one of the more detailed endocast descriptions of that time, he considered the frontal lobe of H. erectus to be well developed.…”

“…With one of the more detailed endocast descriptions of that time, he considered the frontal lobe of H. erectus to be well developed. In addition, Tilney regarded the morphology of the inferior frontal lobe as evidence that H. erectus "had learned to speak-to communicate in verbal language" (Tilney, 1927). Tilney's enthusiasm for the mental capacity of H. erectus in Indonesia was not echoed by others of the time.…”

Arthur Wigan and The Duality of the Mind

“…Tilney (1927), for example, made deductions about the brains of prehistoric men from fossil skulls. The asylum systems in Britain and Europe had rendered many long-term cases available for study and the fashionable scientific and medical style had been that of speculation based on post-mortem dissection.…”

Endocast of Sambungmacan 3 (Sm 3): A new Homo erectus from Indonesia

“…This indicates that differences between the frontal lobes of apes and humans lie not in the total area that this lobe occupies relative to the rest of the brain, but instead to the underlying complexity of the lobe (Semendeferi et al, 1997). While others have attempted to derive features of particular gyri and sulci from the frontal lobe of H. erectus endocasts (Kappers, 1933;Kappers and Bouman, 1939;Tilney, 1927), assessment of precise cerebral surface features is limited (Holloway, 1978). The endocranial surface morphology of Sm 3 is reduced compared to other Indonesian fossils, but a few features are markedly pronounced.…”

“…In describing the endocast of Trinil 2 (H. erectus I), Tilney (1927) positioned H. erectus far above gorilla but below modern humans. With one of the more detailed endocast descriptions of that time, he considered the frontal lobe of H. erectus to be well developed.…”

“…With one of the more detailed endocast descriptions of that time, he considered the frontal lobe of H. erectus to be well developed. In addition, Tilney regarded the morphology of the inferior frontal lobe as evidence that H. erectus "had learned to speak-to communicate in verbal language" (Tilney, 1927). Tilney's enthusiasm for the mental capacity of H. erectus in Indonesia was not echoed by others of the time.…”

Arthur Wigan and The Duality of the Mind

“…Tilney (1927), for example, made deductions about the brains of prehistoric men from fossil skulls. The asylum systems in Britain and Europe had rendered many long-term cases available for study and the fashionable scientific and medical style had been that of speculation based on post-mortem dissection.…”

Endocast of Sambungmacan 3 (Sm 3): A new Homo erectus from Indonesia

“…This indicates that differences between the frontal lobes of apes and humans lie not in the total area that this lobe occupies relative to the rest of the brain, but instead to the underlying complexity of the lobe (Semendeferi et al, 1997). While others have attempted to derive features of particular gyri and sulci from the frontal lobe of H. erectus endocasts (Kappers, 1933;Kappers and Bouman, 1939;Tilney, 1927), assessment of precise cerebral surface features is limited (Holloway, 1978). The endocranial surface morphology of Sm 3 is reduced compared to other Indonesian fossils, but a few features are markedly pronounced.…”

“…In describing the endocast of Trinil 2 (H. erectus I), Tilney (1927) positioned H. erectus far above gorilla but below modern humans. With one of the more detailed endocast descriptions of that time, he considered the frontal lobe of H. erectus to be well developed.…”

“…With one of the more detailed endocast descriptions of that time, he considered the frontal lobe of H. erectus to be well developed. In addition, Tilney regarded the morphology of the inferior frontal lobe as evidence that H. erectus "had learned to speak-to communicate in verbal language" (Tilney, 1927). Tilney's enthusiasm for the mental capacity of H. erectus in Indonesia was not echoed by others of the time.…”

Arthur Wigan and The Duality of the Mind

“…Tilney (1927), for example, made deductions about the brains of prehistoric men from fossil skulls. The asylum systems in Britain and Europe had rendered many long-term cases available for study and the fashionable scientific and medical style had been that of speculation based on post-mortem dissection.…”