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Fear as an illustration of domain specific and domain general systems

Fear as an illustration of domain specific and domain general systems

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Fear as an illustration of domain specific and domain general systems Fear as a modular, domain specific mechanism: Stimulus of a rapidly approaching object or a snake automatically triggers fear response. LeDoux’s Low Road mechanism: Stimulus is processed by amygdala and there is an automatic fear reaction that occurs before we are consciously aware of doing it. This is a specialized, modular, domain specific circuit. It is a cognitive reflex. n Fear as a conscious, non-modular, domain-general mechanism. LeDoux’s high road mechanism. The stimulus of the approaching object or the snake travels to the prefrontal cortex, but it takes a much longer time to get there than the low road mechanism. When it does, we can respond in a variety of
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Unformatted text preview: ways: Is the stimulus really potentially harmful is the noise just a car backfiring? Should I call 911? Plan some elaborate escape? Reach for my gun? These all require elaborate cognitive abilities, knowledge of the world, etc. n Example: Child opening a jack-in-the-box: At first, she smiles in anticipation. Then she shrinks back and shows a fear expression when the box is opened and the jack-in-the-box jumps out. This is the reflexive, modular fear response (the low road). Then she smiles when she understands that the jack-in-the-box is harmless. This is a non-reflexive, cognitive appraisal (the high road)....
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