AP PSYCHOLOGY

Detailed explanation-1: -Grey matter refers to unmyelinated neurons and other cells of the central nervous system.

Detailed explanation-2: -The cerebello-parietal component and the frontal component were significantly associated with intelligence. The parietal and frontal regions were each distinctively associated with intelligence by maintaining structural networks with the cerebellum and the temporal region, respectively.

Detailed explanation-3: -In healthy adults, greater intelligence is associated with larger intracranial gray matter and to a lesser extent with white matter. Variations in prefrontal and posterior temporal cortical thickness are particularly linked with intellectual ability.

Detailed explanation-4: -Grey matter is a diffuse network of brain regions thought to be involved in information processing. It is rich in nerve cell bodies and looks grey to the naked eye. They found that people with high IQ scores had significantly more grey matter in 24 of the regions than people with lower scores.

Detailed explanation-5: -The most interesting finding from this study is that grey matter volume in the cerebellum predicts general intelligence. However, results differ for men and women, with men showing a stronger relationship between brain volume in the cerebellum and general intelligence.