: To spike his anxiety, Amy introduces stressors such as rubbing a balloon to create irritating squeaks. Sheldon further enlists his friends to challenge everything he says and even attempts to join the girls’ "nightly crotch talk" sessions to unsettle himself.
: Sheldon successfully identifies a "sweet spot" where his anxiety levels rise, and his problem-solving rate supposedly increases. III. The Descent into Obsession [S8E13] The Anxiety Optimization
: Using an EEG cap provided by Amy, a neurobiologist, Sheldon establishes a performance baseline through cognitive tests. : To spike his anxiety, Amy introduces stressors