brain

The brain

Cortical thickness varies by more that one millimeter between brain regions and between individuals. Genetic variation may account for some of the individual differences.

genes

Genes

Man has approximately 30 000 genes, but there is a large number of possibilities for individual variation including variation in single nucleotides. Variation in the APOE gene (golden region in the figure above), is associated with risk of developing Alzheimers disease and affects neuronal health and plasticity through the life span.

cognition

Cognition

Mental speed declines and reaction time increases with age, but individual differences also increase, meaning that trajectories of age-related decline vary markedly between individuals. The influence of genetic variation on cognition may increase with increasing age.

Color & material

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Washed Blue

#417e94

Magenta Magma

#c62a41

Jaded Earth

#2f3530