title: An ontogenetic analysis of optional intradimensional and extradimensional shifts.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D005075:Biological Evolution; D002648:Child; D002657:Child Development; D002675:Child, Preschool; D003118:Color Perception; D004193:Discrimination Learning; D005556:Form Perception; D006801:Humans; D007361:Intelligence Tests; D012193:Reversal Learning; D014163:Transfer, Psychology