BIOCHEM 2B03 Study Guide - Midterm Guide: Reticular Formation, Agreeableness, Haloperidol
6 Sep 2013
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Genetically determined t n e m p o l e v e. Extroversion results when ras (ascending reticular activating system) does not arouse cortex enough (high ras threshold: underarousal of cortex leads to seeking more stimulation. In response to stimuli, slow development of excitatory potentials which are weak and quickly replaced by strong reactive inhibition (less responsive to stimulation: predisposed to hysterical-psychopathic disorders. Introversion results when ras arouses cortex more than optimal (lower ras threshold: overarousal of cortex leads to avoid more stimulation. In response to stimuli, rapid development of strong excitatory potentials that are slowly replaced by weak reactive inhibition (more sensitive to stimulation; conditioning: predisposed to anxiety disorder and dysthymia (low mood) Stable high ans (autonomic nervous system) arousal threshold; takes intense experience to generate the physiological correlates of emotion. Neurotic low ans arousal threshold; highly sensitive to stimulation; ans easily activated; experience emotions more strongly and more often.
