LSE public lecture Willpower: self-control, decision ... · PDF fileWillpower: self-control,...
Transcript of LSE public lecture Willpower: self-control, decision ... · PDF fileWillpower: self-control,...
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Willpower: self-control, decision fatigue, and energy
depletion
Roy F. BaumeisterEppes Eminent Scholar, Florida State University
Dr Helena CroninChair, LSE
LSE public lecture
Suggested hashtag for Twitter users: #lsewillpower
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Willpower and Self-Control
in Everyday Life
Roy F. Baumeister
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Value of Self-Control
• Success in work, school
• Good relationships
• Happy, low stress
• Adjustment, mental health
• Physical health
• Good behavior (vs. crime, abuse, prejudice)
• Longevity
• It is difficult to identify any major personal
problems that do not have some element of self-
control failure
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What is Self-Control?
• Overriding responses, changing oneself
– Thoughts, emotions, impulses, performance
• Regulate: Change based on idea (standard)
• Vital for human social life (culture)
• Psychological basis of morality
• Basis for free will
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Power of Willpower
• Was the desired behavior actually performed?
– If no resistance: 70%
– If resistance: 17%
• Thus, self-control helped reduce the
enactment of desire, from 70% to 17%
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Frequency of Self-Control of Desire:
Extrapolating to 16 Waking Hours
• Desiring something: 8 hours per day
• Resisting problematic desires: 3 to 4 hours per
day
• Succumbing to previous resisted temptations:
half hour per day
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Willpower is limited
• Idea of willpower implies limits
• “Ego depletion” effects
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Perseverance Despite Frustrating
Failure
Radish
Chocolate
No-Food Control
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Perseverance Despite Frustrating
Failure
Radish 8.35 minutes
Chocolate 18.90
No-Food Control 20.86
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Ego Depletion in Daily Life
11
• Depletion score: sum of previous resistance attempts on same day,
weighted by temporal distance
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0 5 10 15 20 25 30 35
Pro
ba
bil
ity
of
exe
cuti
on
(p
rese
nt
de
sire
)
Depletion score due to previous self-control
No resistance Resistance
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Like a Muscle
• Gets tired after exertion
• Conserving energy
• Exercise increases strength !
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One Willpower, not Many
• Control thoughts
• Control feelings
• Impulse control
• Task performance
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Uses of Willpower
• Self-control
• Decision making…
– E.g., after making decisions, self-control is
impaired
• Initiative
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Decision Fatigue:
Choosing While Depleted
• Postpone/avoid decision
• Less compromise
• Default option
• Impulse, self-indulge
• Irrational bias
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Effective Self-Controllers
• Less frequent resistance!
• Less guilt
– From other work: lower life stress
• Implications: Playing offense, avoiding
problems
Hofmann, Baumeister, et al., in press, J Pers Soc Psyc
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http://en.wikipedia.org/wiki/File:John_William_Waterhouse_Ulysses_and_the_Sirens_%281891%29.jpg
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Willpower, Brain, and Body
• Prefrontal cortex
• Glucose
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Understanding Glucose
• Self-control
• Physical exertion
• Immune system
• Premenstrual syndrome (PMS)
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What Depletion Feels Like
• Strong behavioral effects, but weak subjective
• No “signature feeling”
• Some reluctance to tackle difficult things
• Sometimes different on “tired”
– (But usually not)
• Intensification of all emotions, desire
– Turns up the volume on life!
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Conclusion
• Limited but powerful
• Self-control, but also choice, initiative
• “Greatest human strength”?, individually &
collectively
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Acknowledgements
• Overview book: Baumeister & Tierney (2011),
Willpower: Rediscovering the Greatest Human
Strength
• Major collaborators: Kathleen Vohs, Brandon
Schmeichel, Mark Muraven, Nathan DeWall,
Dianne Tice, Wilhelm Hofmann, Matthew
Gailliot.
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The End
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Willpower: self-control, decision fatigue, and energy
depletion
Roy F. BaumeisterEppes Eminent Scholar, Florida State University
Dr Helena CroninChair, LSE
LSE public lecture
Suggested hashtag for Twitter users: #lsewillpower