1.3 Contemporary Psychology — Psychology Is Way Bigger Than a Couch | Psychology 2e

Modern psychology stretches far beyond the therapist's office — from the biology of the nervous system to the courtroom, the workplace, and the sports arena. This lesson walks through Section 1.3 of OpenStax Psychology 2e, mapping out the full landscape of contemporary psychology and the organizations that hold it together. Whether you're new to the field or brushing up, this is your guided tour of what psychologists actually study and do. In this video: • The APA's 54 divisions and how the APS broke away over scientific vs. clinical disagreements • Biopsychology and evolutionary psychology: from immediate neural causes to Darwin's ultimate explanations • Buss's 1989 cross-cultural mate preference study across 37 cultures — and its key limitations • Sensation vs. perception illustrated by the classic duck-rabbit optical illusion, leading into cognitive psychology • Developmental psychology: Piaget's object permanence in infants and the growing focus on aging (90 million Americans over 65 by 2050) • Personality psychology's Big Five (OCEAN) model and why it replaced Freud's untestable theories • The Milgram obedience experiment, its shocking findings on authority, and how it reshaped research ethics #Psychology #OpenStax #BigFive #Milgram #CognitivePsychology OpenStax Content adapted from "OpenStax Psychology 2e", by OpenStax licensed under CC BY 4.0. Content based on Web Version: Apr 23, 2026. Read the textbook online https://openstax.org/details/books/psychology-2e Music first girl talking to me. by ikkun (ex. Barradeen) | https://soundcloud.com/ikkunwastaken Royalty Free Music by https://www.free-stock-music.com Creative Commons / Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0) https://creativecommons.org/licenses/by-sa/3.0/deed.en_US