emotion- exam 3 Flashcards
James-Lange Theory
Emotion arises from physiological arousal.
The sequence: Event → physiological arousal → emotion.
Example:
Seeing a bear → Heart races → Feel fear.
Cannon-Bard Theory
Emotion and physiological response occur simultaneously but independently.
The brain’s thalamus sends signals to the body (arousal) and cortex (emotion) at the same time.
Example:
Seeing a bear → Simultaneous racing heart and feeling of fear.
Two factor theory (Schachter-Singer)
Emotion is determined by two factors:
Physiological arousal (e.g., increased heart rate, sweating).
Cognitive label (interpreting the arousal based on the situation).
Emotion arises from interpreting the cause of arousal.
Schachter & Singer Study (1962)
Subjects injected with adrenaline (informed, uninformed, placebo).
Confederate behaved either euphorically or angrily.
Uninformed subjects mirrored the confederate’s emotion, demonstrating that context and cognition shape feelings.
Sympathetic nervous system
Activates the “fight or flight” response, increasing heart rate, respiration, and hormonal secretions during stress or strong emotions.
Parasympathetic nervous system
Restores calm by reducing heart rate, slowing breathing, and halting stress responses after the “fight or flight” phase.
Role of amygdala in emotion
The brain’s “fear mechanism.”
Generates emotional responses like fear and anger.
Controls hormonal secretions and autonomic reactions.
Damage leads to an inability to recognize fear in faces.
Two pathways for emotion (Zajonc, LeDoux)
Low road: Quick, reflexive emotional processing via the amygdala, bypassing the cortex.
High road: Slower, detailed processing via the cortex for conscious appraisal of emotion.
How do polygraphs work?
Measure autonomic nervous system activity, such as galvanic skin response, pulse, breathing, and fidgeting.
They compare responses to control and relevant questions.
Are polygraphs accurate and reliable?
No.
False positives: 1/3 of innocent people declared guilty.
False negatives: 1/4 of guilty people declared innocent (Kleinmuntz & Szucko, 1984).
Elkman’s theory of facial expression
Six universal emotions (happiness, anger, sadness, surprise, fear, disgust) are tied to unique facial expressions.
Supported by cross-cultural studies, including isolated cultures like the South Fore in New Guinea.
Infants show these expressions from birth.
Facial feedback hypothesis
Facial expressions contribute to emotional feelings, e.g., smiling can make you feel happier. This was confirmed in studies showing self-reported changes in happiness or anger based on expressions.
Guilty knowledge test
Measures reactions to specific details only a guilty person would recognize (e.g., showing a stolen Rolex watch among other watches).
Harder to cheat and more reliable than standard polygraph tests.
Missatribution
Mistaking the source of physiological arousal for something else.
Example: In Dutton & Aron’s bridge study, men on a scary bridge attributed arousal (from fear) to romantic attraction.
Adaption level phenomenon
People adapt to changes (e.g., wealth, life events), and happiness returns to a baseline level.
Positive or negative effects of events (like marriage or hospitalization) typically last about three months.
Relative deprivation/social comparison
Feeling less satisfied by comparing yourself to others who appear better off.