midterm 2 in a week

1
9 25 08

• (midterm 2 in a week)
• Ch 7
• 1.
• 2. Dopamine theory of E
• 3.
• 4. Morning-eveningness

2
Ch 7 Physiological Approaches to Personality

• Sensation seeking
• Placed in water
• No sight, No sound
• Very little touch
• 12 hours straight
• Stages of experience
• Will choose any stimulation (e.g., stock market
  analysis)

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Ch 7 Physiological Approaches to Personality

• Any stimulation, even boring tapes, rewarding
• Drive reduction goal
• Elimination of sensation

4
Ch 7 Physiological Approaches to Personality

• Zuckerman sensory deprivation expts
• Not all equally distressed
• Particularly problematic if
• Developed SSS

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Ch 7 Physiological Approaches to Personality

• Zuckerman
• In fact
• Validates scale scale can be used without tank

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Ch 7 Physiological Approaches to Personality

• Subsequent research
• 1. Police who volunteer for riot duty high in SS
• 2.
• 3.
• 4.
• 5. High SS more sex partners, more kinky sex
• Reviews (Zuckerman, 1984, 1991)
• Revisiting E

7
Extraversion dopamine Depue et al. (1994)

• What do we know about E?
• Eysencks (1967) theory covers this
• Eysencks (1967) theory
• (arousal prediction of mood)

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Extraversion dopamine Depue et al. (1994)

• Why is extraversion related to positive affect?

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Extraversion dopamine Depue et al. (1994)

• What is dopamine?
• Has broad effects on brain behavior
• Rats will
• Suggests that dopamine rewarding

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Extraversion dopamine Depue et al. (1994)

• Rat without dopamine will not (sits there)
• Associated
• More excitement, movement, goal pursuit
• Recently, gambling, sex addiction problems

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Extraversion dopamine Depue et al. (1994)

• Dopamine stimulants
• However, many rewards (alcohol, nicotine, sex)
  trigger D release
• (George - food sex)

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Extraversion dopamine Depue et al. (1994)

• Extraverts pleasure, goal pursuit, lots of
  activity
• Introverts less pleasure, less goal pursuit (or
  perhaps different goal pursuit), less activity
• Hard to assess D levels in humans

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Ch 7 Physiological Approaches to Personality

• Serotonin
• Drugs used to treat depression
• Apparently work by
• Thus
• Quite generally, insufficient serotonin

14
Ch 7 Physiological Approaches to Personality

• New Topic
• Brain asymmetry
• Possible substrate of emotion, personality
• First lets test a couple of ways

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Ch 7 Physiology and Personality

• Dancer
• http//www.news.com.au/perthnow/story/0,21598,2249
  2511-5005375,00.html?frommostpop

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Ch 7 physiology personality

• Chimeric faces
• http//www.neiu.edu/lruecker/experiments/program.
  htm

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Of two minds?

• Roger Drakes research
• Look right
• Why?
• Where should you sit on a date?
• Likelihood of positive negative events
• Positive
• Negative

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Of two minds?

• Richie Davidsons research
• Left frontal
• Right frontal

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Of two minds?

• Richie Davidsons research
• 1. Lesion patients
• 2. Manipulations
• Positive manipulations activate left negative -
  right

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Of two minds?

• Richie Davidsons research
• 3.
• Good internal reliability
• 4. Asymmetry as pre-disposition
• However, more left
• More right

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Of two minds?

• Sutton Davidson (1997)
• Personality correlates of asymmetry
• N 46
• EEG activity measured
• Measures
• BAS
• BIS
• PA
• NA

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Of two minds?

• Sutton Davidson (1997)
• So approach avoidance not the same thing as
  positive negative affect
• Asymmetry more left activity than right
  activity
• R
• R
• R .06 with PA
• R -.20 with NA
• So asymmetry related more to BAS BIS than PA/NA

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Of two minds?

• Sutton Davidson (1997)
• Why left approach
• Left can represent goals for long periods of time
  (e.g., plan for test way ahead of time)
• Why right avoidance

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Of two minds?

• Eddie Harmon-Jones research
• When is approach paired with negative affect?

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Of two minds?

• Eddie Harmon-Jones research
• 1.
• 2. Manipulations of anger (state)
• 3. Asymmetry predicts
• 4. Asymmetry predicts

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Of two minds?

• Left is not necessarily positive
• Why?
• Link to proactive, rather than reactive, action

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Of two minds?

• Wendy Hellers research two types of anxiety
• Left activation
• Right activation

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Ch 7 Physiological Approaches to Personality

• Morningness-eveningness
• Do you get up early, doing your best work early?
• Do you get up slowly and do best work later in
  the day?
• larks
• owls

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Ch 7 Physiological Approaches to Personality

• Circadian rhythm
• Included in this rhythm
• High in the morning
• More stable later in day
• Body temperature
• Very low at 6 a.m.
• Very high at 8-9 p.m.

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Ch 7 Physiological Approaches to Personality

• Circadian rhythms
• Best to study them without a typical schedule
• Thus, studies
• No clues to whether
• Weeks on end
• Who volunteers?
• Undergrads seeking money
• Grads seeking time to study for important exam or
  write up thesis

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Ch 7 Physiological Approaches to Personality

• Sleep as long as you want
• Wake up whenever you want
• Eat whenever you want
• Even under such conditions
• However, individuals differ
• Some move to
• Others move to
• And all places in between

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Ch 7 Physiological Approaches to Personality

• 22 hour person
• 26 hour person

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Ch 7 Physiological Approaches to Personality

• 3. On average, how easy do you find getting up in
  the morning? (1 not at all easy 5 very easy)
• 11. At what single hour of the day do you think
  you reach your feelings best peak?
• Findings
• Predicts
• Predicts
• Performance (Monk Leng, 1986)
• Morning types do best
• Evening types do best