Aging and peaking.
Cohen
G D
GD
D000328:Adult; D000368:Aged; D000375:Aging / Q000523:psychology*; D003405:Creativity; D005197:Famous Persons; D006801:Humans; D007360:Intelligence; D008091:Literature; D008433:Mathematics; D008875:Middle Aged; D010684:Philosophy; D011572:Psychoanalysis