State University of Iowa, 1957) with training and experience in both research and clinical practice. She is both a Fellow of the American Psychology Association and the American Psychological Society She has authored or edited four books on the subjects of psychology of women and sex-related cognitive differences, and thirty some refereed articles. Her knowledge of human nature is buttressed by extensive clinical experience: she examined the cognitive and emotional functioning of hundreds of individuals; as a therapist, she followed a wide range of patients in long-term psychotherapy including those with sociopathic personality, schizophrenia, and bipolar disorder. After her retirement, she took up the challenge to understand the etiology of bipolar disorder. Her theory, The Evolutionary Origin of Bipolar Disorder (EOBD) was published in the electronic journal Psycoloquy in 2001 (http://www.cogsci.soton.ac.uk/psyc/newpsy?12.028).