Kind: captions Language: en fear is the physiological response of increased heart rate sweating increased breathing activated muscles it's deep in the middle of our brain if you don't have an amygdala you won't be afraid of anything sometimes people call the amygdala the lizard brain it's a primitive mini brain within our brain even crocodiles that have scarcely changed for 70 million years have an amygdala if a Predator is gonna eat me I need to run the other direction without thinking about it for a really long time [Music] first you're going to see the eyes the retina neurons activating those are going to send projections to the middle part of the brain those then split and you'll get some projections going directly to the amygdala so within one synapse the amygdala is starting to get information your body has adrenaline flowing your amygdala is activated but there's not actually a threat we'll give some projections to going to the visual cortex that starts the cascade of conscious awareness regions like the prefrontal cortex have the ability for higher cognitive functions like oh I recognize this it's not a real monster it looks like a person dressed up as a monster and therefore I'm gonna suppress activity in the amygdala and that leads to both a sense of relief maybe a sense of humor so you reinterpret this emotional state as positive because it's the only other thing it can be doesn't predict anything positive or negative consequences then the amygdala stops responding to it so the first time the monster jumps out oh my god the screen the startle the heart rate etc the next time maybe similarly but maybe the third or fourth time if the monster is the same the place is the same okay I'm over this [Music] if you would want changes in sensory cues that are really big so from dark to light they do little things that really activate the sensory differences so that you don't pitch ''u 8 - the same monster popping up over and over you would want to bury the sitting on some that are visual some that are auditory you feel a little chilly mist I think in the idea haunted house you would have things that would also play into people's most specific unique fears [Music]