Karl Zener created 25 cards with five symbols for ESP experiments. Symbols include hollow circle, plus sign, wavy lines, square, and star. Cards were shuffled by hand or machine to prevent manipulation
Reflexology involves applying pressure to specific points on feet, ears, and hands. Similar practices existed in India, China, and Egypt historically. Introduced to US in 1913 by Fitzgerald and Bowers. Modified by Ingham in 1930s-1940s, mapping body into reflexes on feet
Freud laid out psychoanalytic theory in late 19th century. Theory gained prominence in late 20th century after Freud's death. Freud shifted focus from brain to psyche and treatment methods
Paranormal refers to phenomena beyond scientific understanding. Term "paranormal" has existed since 1920, combining "para" (above) and "normal". Paranormal phenomena are often misinterpretations of natural phenomena
Created by Katharine and Isabel Briggs during WWII to help women find suitable jobs. Based on Carl Jung's 1921 psychological types theory. First published in 1962 by Educational Testing Service. Currently used by 50 million people and 10,000 businesses in US
Freud introduced the concept of Oedipus complex in 1910. Complex describes son's desire for mother and hostility towards father. Theory developed during phallic stage (ages 3-6) of psychosexual development. Freud rejected Jung's Electra complex concept for girls