PSYC 3140 Chapter Notes - Chapter 2: Reflex Syncope, Central Nervous System, Parasympathetic Nervous System
25 Jun 2017
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Biological: genetics/neuroscience (ex: lightheadedness, overreactive brain areas) Psychological (behavioural): learned helplessness, social learning, etc. Psychological (cognitive/emotional): unconscious processes, increased fear, etc. Developmental: changes over life span, di erent environment/age/response. Jody"s blood-injury-injection phobia: biology in uences behaviour & sometimes vise-versa. Biological in uences: vasovagal syncope (overreactive vasovagal lowers blood pressure after it"s increased by blood stimuli = fainting) & genetic, blood reaction runs in families. Behavioural in uences: unconditioned response w/ stimulus generalization ( cut it out! ) Social in uences: principle rejection & classmate attention = worsen reaction/fear. Developmental in uences: developmental critical period (ex: age 16 when phobia arose) Outcome: phobia exposure + applied muscle tension reduce vasovagal reactions. (7 days) Genes: long dna molecules in chromosomes within cell nucleus. Each human cell: 46 chromosomes, 23 pairs (1 from father, 1 from mother) 23rd pair: last chromosome pair in cell determines sex (xx = f & xy = m)
