Lecture Slides Flashcards
(87 cards)
What is laughter?
- Emerged 4 million years ago, BEFORE language
- Series of exhalations=heart rate decreases=cues parasympathetic nervous system
- 15 facial muscles contract
- larynx partially closed, air intake irregular
- tear ducts sometimes activated
- endorphin released
What types of laughs were included in Bachorowski’s laughter dictionary?
cackle, hisses, pants, snorts, grunts, songlike laughs
What was found from Bachorowski’s Laugh Study?
Different laughs elicit different reactions
- voiced laughs (involve vibration of vocal chords) much more likely to elicit positive emotions
- unvoiced laughs much more likely to elicit negative emotions, not seen as affiliative
Why is Laughter good for us?
Builds friendship and other social bonds
- Promotes recovery from negative emotions
- reduces presence of stress hormones
- decreases muscle tension
- increases positive immune markers
- undoes negative emotions
What did Frederickson and Levenson (1998) find from making people watch a fear eliciting film and then a laughter eliciting film?
People who laughed more in second film had a faster return to baseline physiological levels.
Is crying healthy?
Surveys reviled 60-70% report crying was cathartic
How did people feel after watching sad films that made them cry?
people report feeling worse and show more physiological arousal with sad films
overall conclusions about crying
varied: context-dependent
What is the function of touch?
activates neural regions (OFC) associated with reward (self-reported pleasantness)
What evidence shows that touch is soothing?
- 15-min swedish massage associated with decrease in cortisol and increase in oxytocin (blood drawn)
- 16 married women awaiting electric shock in fMRI: having someone hold your hand decreased activity in amygdala and especially true if husband. (activation in amygdala associated with stress and negative emotional responses.)
- Infants painful procedure - heel lance for sampling blood: infants who were touched cried less, grimanced less, and had lower heart rate during procedure: touch leads to better pain tolerance even in young infants
Who would be more likely to sign a petition supporting local issue, someone who is touched, or someone who is not touched?
81% signed who were touched
Who is more likely to take medicine as instructed by medical practitioner, people who are touched, or people who are untouched?
people who are touched
How does an 1-year-old respond to an object he or she doesn’t understand when positive touch involved? negative touch involved?
more likely to approach object
more likely to pull away
What specific emotions are reliably communicated through touch?
fear, anger, disgust, love, gratitude, sympathy
what specific emotions are not reliably communicated through touch?
pride, envy, embarrassment
What is psychophysiology?
Study of psychological phenomena as revealed through physiology, physhological activity underlying psychological events, much broader than focus on brain, often focuses on Peripheral Nervous System (PNS)
Why is psychophysiology important?
- Tells us something different than self reports (what people are unwilling or unable to say).
- Gets around social desirability.
- Provides information outside of conscious awareness.
- Helps illuminate the connection between emotions and physical health.
- Provides more clues or insights about emotions.
What are the limitations of Psychophysiology?
Methods can be difficult and expensive
Lack of clarity about what to infer: if heart rate elevated, does that mean anger? excitement? Fear?
What physiological activity is measured in the body?
Sympathetic and Parasympathetic Nervous Systems
Sympathetic Nervous System facilitates…
energy expenditure
Parasympathetic Nervous System facilitates…
energy storage
How do we access reactivity in SNS and PNS?
change from baseline. Can happen inside and outside of lab.
Electrocardiogram measures __________ by using ______________.
heart rate; electrodes on skin
Skin conductance measures _______ by applying current and measuring conductance, more sweat increases conductance. Pure measure of ________ activity but not __________.
sweat; sympathetic nervous system (energy expenditure); specific. e.g., Lie detector test