Emotions and the Brain: What is the limbic system?

0:00 Horror movies, goosebumps, hunger pangs — that's your limbic system 0:37 "Limbic" = border: it sits between the thinking brain and autopilot brain 1:08 Not one part — a collection of interconnected structures 1:42 The Thalamus: relay center that routes sensory info (except smell!) 2:22 The Amygdala: fear, anxiety, aggression, and attraction (your spidey sense) 2:43 The Hypothalamus: fight-or-flight, hormones, and homeostasis 3:21 The Hippocampus: converting short-term memory into long-term memory 3:48 What happens when limbic structures are damaged? 3:58 Patient SM: no amygdalas = no fear (snakes, haunted houses, nothing scared her) 4:23 Damaged hippocampus: anterograde amnesia (Memento, 50 First Dates) 5:09 Brain imaging reveals how the limbic system works — but many questions remain