Probably empathy, mixed with growing intuition. For example if a character has no morals, how will he feel and behave ? What about a dominant trait ? For example someone wanting to be loved and behaving as such... confusing it with mere goodness ?
Creativity and a sense of no limits will grow in the same time...
As for the vocabulary; it is rooted in the structure of the mind, psycho + whatever, with some physiology such as locus coereleus for people with total recall, ACTH (AdrenoCoricoTropicHormone) for people growing artistic skills when cured with ACTH and losing them just after the end of the cure.