“Joseph LeDoux at New York University has shown how the BLA learns fear.fn14,20 Expose a rat to an innate trigger of fear—a shock. When this “unconditioned stimulus” occurs, the central amygdala activates, stress hormones are secreted, the sympathetic nervous system… — Robert M. Sapolsky Copy Share Image
“But it turned out that this “unlearning” was not as complete as the scientists first thought. When they severed the neural connections between the rats’ cortex and amygdala, the rats became afraid of the sound again. This was because the… — Susan Cain Copy Share Image
