She earned her doctorate in neuroscience psychoanalysis and is an author, teacher and much sought-after public speaker on subjects close to her heart, such as the physiology underlying introverted and extraverted temperaments. She is one of America's foremost authorities on introversion; she speaks and leads workshops on the topic in the United States and Canada, and has written three books on the subject: The Introvert Advantage; The Hidden Gifts of the Introverted Child; and The Introvert and Extrovert in Love. Dr. Olsen is in private practice and presented on the subject of introversion at the 2011 American Mensa Annual Gathering in Portland, Ore. She is a practicing introvert.