Sympathetic Nervous System, Cortisol discussed on Stuff To Blow Your Mind - The First Monster

Automatic TRANSCRIPT

Our fear responses modular or condition in other words are our fear responses and are monster fears instinct she will born into us or the just learned in conditioned by culture and experience and just to rephrase from the beginning i think one thing we can eliminate is that it's quite obvious that at least some of our fears are conditioned or learned like there is no way you were born with a fear of airplanes right uh that's not part of your evolutionary heritage so though you might have you know you might have an inborn fear of heights you could see here could not heart of evolutionary hair like silver machines filled with other humans right barreling through the sky right so there might be instincts will elements that go into that fear but the fear itself the content there is clearly conditioned or learned but the real question is are any of our fears modular or instincts you will or the are they all conditioned or learned so asthma kicks off his favorite vice by premature stating the obvious fear exists in our bodies and minds yeah fearful stimuli stimulates this sympathetic nervous system so perhaps a freeze in the face of fear maybe you'll flee maybe you'll you'll suddenly have this burst of bravery in return on a fight but the object of terror gives as a physical jolt and it demands reaction and he also points on tuesday strong hormonal component entailing the corticotropinreleasing hormone or c r h cortisol and adrenaline asthma points to a study in fact in which scientists inserted a gene in mice that makes crh resulting in more fearful mice or removing it to make quote an extremely fearless mouse i would i would venture to say that both prospects are horrifying.

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