Anxiety
The philosopher Søren Kierkegaard, in "The Concept of Anxiety" (1844), described anxiety or dread associated with the "dizziness of freedom" and suggested the possibility for positive resolution of anxiety through the self-conscious exercise of responsibility and choosing. In "Art and Artist" (1932), the psychologist Otto Rank wrote that the psychological trauma of birth was the pre-eminent human symbol of existential anxiety and encompasses the creative person's simultaneous fear of – and desire for – separation, individuation, and differentiation.
Judith Rich Harris
In 1994 she formulated a new theory of child development, focusing on the peer group rather than the family. This formed the basis for a 1995 article in the "Psychological Review", which received the American Psychological Association's George A. Miller Award for an Outstanding Recent Article in General Psychology. George A. Miller was chair of the Department of Psychology at Harvard in 1960, when Harris was dismissed from that Ph.D. program (see above)
Harris's most famous work, "The Nurture Assumption", was first published in 1998, with a revised version published in 2009.