Psyc4130 1nd Edition Lecture 20 Outline of Last Lecture I. Pheromonal Phenom in RodentsII. Pheromones in Humansa. McClintock EffectIII. Human Sexual Attraction Pheromonesa. Androstadienone b. Estratetraene IV. Dimorphismsa. Aromaraseb. oSDNc. Sexual orientation and SDNV. What “Causes” Homosexuality?”Outline of Current Lecture I. Helen Fisher- Ted TalkII. VTACurrent Lecture Helen fisher- the brain is love (TED TALK)—can be found on youtube (extra credit on test) VTA (ventral tegmental area)- People happily loved/loving find activity hereo Brains reward systemo Below your emotionso Part of reptilian core of brain—wanting, craving, reward, focus, motivationo Same part gets active from cocaine highThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.o People in MRI scanner after being dumpedo Found activity in 3 brains regions- VTA = same region activated from intense romantic love—you love them harder o Gets more active when you want what you cant haveo Core of nucleus accumbens- area associated w/ calculating gains and loses—what went wrong, what have I lost To take enormous risks o Region associated w/ deep attachment of other people (anterior cygulate cortex??) Feel intense energy, focus, and willingness to risk it all to gain life’s “prize”- It is an addiction, all characteristics of addition (want more/more, withdrawal, relapse) - Animals love; but everywhere in wild, animals have “favoritism”—mate choice - People in MRI scanner after being in love for 25 yearso Same area w/ deep romantic love is activated, even 25 years later - Why do you fall in love with people you fall in love with? Maybe biology pulls you towards some people over others?? - To what degree do you develop the diff ratios of the 4 chemicals in brain (dopamine, ach, serotonin, ne) that associate w/ romantic love/falling for someone –biological? - Love is in us, deeply embedded in the brain Classnotes: VTA—dopaminergic neurons- Main target in VTA is nucleus accumbens- Love as an addiction- tolerance and withdrawal (2 defining characteristics of substance dependency) o Distortion of reality o Riskso Withdrawal o Tolerance o Loss of identity o Relapse - In men, vasopressin linked to orgasm; oxytocin is equivalent in women (both have something to do w/ sense of
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