Brain size

Philosophy

Neuroscience

Biology

Astrophysics

Computer science

Variation (astronomy)

Radiology

Physics

Psychology

Brain mapping

Brain activity and meditation

Normative

Epistemology

Artificial intelligence

Brain morphometry

Electroencephalography

Medicine

Perspective (graphical)

Magnetic resonance imaging

Human brain

Neuroimaging

Science

Shifts in brain regions with brain size Brain size among normal humans varies as much as twofold. Reardon et al. surveyed the cortical and subcortical structure of more than 3000 human brains by noninvasive imaging (see the Perspective by Van Essen). They found that the scaling of different regions across the range of brain sizes is not consistent: Some brain regions are metabolically costly and are favored in larger brains. This shifts the balance between associative and sensorimotor brain systems in a brain size–dependent way. Science , this issue p. 1222 ; see also p. 1184

Normative brain size variation and brain shape diversity in humans