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The amygdala, which is the most researched brain region in racism studies, shows much greater activation while viewing other-race faces than same-race faces. [1] [3] [12] This region of the brain is associated with fear conditioning, and has many connections with the cortex to control the body’s emotional response. [3]
Swedish professor of anatomy Anders Retzius (1796–1860) first used the cephalic index in physical anthropology to classify ancient human remains found in Europe. He classified brains into three main categories, "dolichocephalic" (from the Ancient Greek kephalê, head, and dolikhos, long and thin), "brachycephalic" (short and broad) and "mesocephalic" (intermediate length and width).
Tiedemann asserted that based upon his documentation of craniometric and brain measurements of Europeans and black people from different parts of the world, that the then-common European belief that Negroes have smaller brains, and are thus intellectually inferior, was scientifically unfounded, and based merely on the prejudice of travellers ...
During the 19th and early 20th centuries, the idea that there are differences in the brain structures and brain sizes of different races, and that this implied differences in intelligence, was a popular topic, inspiring numerous typological studies.
For the two other African ethnic groups on which data was available, the likelihood was 23.7% below average for those of Somali origin and 35.3% below average for those of Congolese origin. [67] In 2014, Black-African pupils of 11 language groups were more likely to pass Key Stage 2 Maths 4+ in England than the national average. Overall, the ...
The cerebellum (Latin for “little brain”) is a distinct part of your brain that is attached to the rest of your brain at the back of your head. The cerebellum is only about one-tenth the size ...
An elephant's brain weighs just over 5 kg (11 lb), a bottlenose dolphin's 1.5 to 1.7 kg (3.3 to 3.7 lb), whereas a human brain is around 1.3 to 1.5 kg (2.9 to 3.3 lb). Brain size tends to vary according to body size. The relationship is not proportional, though: the brain-to-body mass ratio varies. The largest ratio found is in the shrew. [57]
One of the most common is that humans evolved as blacks in Africa, and that whites are mutants (albinos, or melanin recessives)". [6] Ortiz de Montellano wrote in 1993 that melanin theory as an ideological movement would increase scientific illiteracy and would contribute to "widening the gap between the races".