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Answer the following questions based on what was presented in the video lesson. No outside knowledge is required — all answers can be found in the video.
Answer each question using what you learned in the video lesson. Questions progress from recall to application — do your best to explain your reasoning in your own words where prompted.
This lesson unpacks Section 15.5 of OpenStax Psychology 2e, separating the clinical reality of obsessive-compulsive and related disorders from the casual, often minimizing way those terms get used in everyday conversation. We explore how obsessions (persistent, unwanted intrusive thoughts) and compulsions (ritualistic acts performed to reduce distress) combine to trap a person in an exhausting cycle — even when their rational understanding is fully intact. The lesson also covers related disorders like body dysmorphic disorder and hoarding disorder, then digs into the biological and behavioral mechanisms that drive and sustain OCD. In this video: • How obsessions and compulsions differ from ordinary stress or routine hand-washing — and why proportion and rationality are the key distinctions • Body dysmorphic disorder and hoarding disorder explained as the same obsession-compulsion loop applied to perceived physical flaws and feared loss of possessions • The genetic component of OCD: 57% concordance in identical twins vs. 22% in fraternal twins, and the role of serotonin, dopamine, and glutamate • The orbitofrontal cortex as a hyperactive alarm — why it lights up excessively when triggered by stimuli like a crooked picture or a dirty towel • Why the correlation between orbitofrontal hyperactivity and OCD symptoms does not automatically prove causation • Classical conditioning's role in creating OCD fears (e.g., a doorknob becoming associated with disease) and operant conditioning's role in sustaining compulsions through negative reinforcement • The self-reinforcing trap: performing a ritual briefly silences the anxiety alarm, making the compulsive urge even stronger the next time the trigger is encountered #OpenStax #Psychology #OCD #MentalHealth #AbnormalPsychology 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
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