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Where exactly do your memories live in your brain? This lesson from Psychology 2e, Section 8.2, traces the science from Karl Lashley's early lesion experiments all the way to the specialized roles of the hippocampus, amygdala, cerebellum, and prefrontal cortex. Along the way, the famous case of Patient H.M. reveals why memory storage is far more complex — and more fragile — than a simple video recording. In this video: • Karl Lashley's lesion experiments on rats and the equipotentiality hypothesis • Patient H.M.'s hippocampal removal and its impact on declarative memory • The four key brain regions: hippocampus, amygdala, cerebellum, and prefrontal cortex • The cerebellum's role in implicit/procedural memory, illustrated by the rabbit eye-blink experiment • How the amygdala deepens encoding of emotionally arousing events through stress hormones • Arousal theory, glutamate release, and flashbulb memories like 9/11 • Memory reconstruction and false memories — why even vivid memories can be inaccurate #OpenStax #Psychology #Neuroscience #Memory #IntroToPsychology 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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