Emotion Flashcards

1
Q

Describe the differences between emotion, mood, and affect

A

emotion: feelings, behaviors, and physiological changes in state
mood: a temporary state of mind or feeling

affect: experience of feeling or emotion
—> affect display: facial, vocal, or gestural behavior that serves as an indicator of affect

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2
Q

Define and name basic emotions and complex emotions

A

basic emotions: innate, cross-cultural, and evolutionarily “old”; expressed by facial expressions and physiological responses; present in non-humans

ex: anger, disgust, fear, happiness, sadness, surprise

complex emotions: learned emotions that emerge later in development; shaped by culture and language

ex: embarrassment, shame, guilt, pride

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3
Q

Describe the dimensional scales of emotions

A

high versus low arousal and valence

arousal: interest (high or low/positive or negative)
valence: evaluation (high or low/positive or negative)

                     high arousal 

low valence + high valence

                     low arousal 

high arousal, high valence: excited
high arousal, low valence: stress
low arousal, high valence: calm
low arousal, low valence: fatigue

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4
Q

Describe MacLean’s “Triune Brain” theory. Name the components and their functions

A

proposed that the human brain is really three brains in one, a “triune brain”

  1. Neocortex: rational thinking (reflection/self perception/discrimination/goals)
  2. Limbic Brain: emotion f(ear/anger/anxiety)
  3. Reptilian Brain: basic survival instincts (hunger/thirst /reproductive drive/etc)
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5
Q

Describe the components and functions of the autonomic nervous system

A

autonomic = (involuntary nervous system)
para is calm, sims is fight

parasympathetic: rest and digest; calming; facilitates slow processes and reactions that can be spread out over time
sympathetic: fight or flight; arousing; facilitates fast processes that require immediate attention

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6
Q

Describe the components of the HPA axis

A

central stress response system

  1. hypothalamus
    sends messages from the brain to the adrenal and pituitary gland and other organs
  2. pituitary gland
    produces hormones that regulate adrenal glands
  3. adrenal gland
    produce a variety of hormones including adrenaline and the steroids aldosterone and cortisol

controls reactions to stress and regulates many body processes, including digestion, the immune system, mood and emotions, sexuality, and energy storage and expenditure

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7
Q

Describe the concept of optimal stress level

A

eustress as opposed to distress

—> can increase or decrease cognitive and immune functioning

what accounts for our ability to be productive and accomplish our daily tasks

increased stress increases cognitive and immune function

tooLITTLE stress, and we becomedepressed and apathetic…but too MUCH stress, and webecome overloaded and start to burn out

too much stress reduces cognitive and immune function

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8
Q

Be able to describe ways of decreasing chronic stress

A

breathing exercises, meditation, healthy diet

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9
Q

Describe the James-Lange Theory of emotion and broadly describe some evidence in
favor of it

A

James-Lange Theory

  • bottom-up
  • physiologic response first
  • brain being influenced by bodily state
  • emotions occur as a result of physiological reactions to events
  • witnessing an external stimulus leads to a physiological response—your emotional reaction depends on upon how you interpret those physical reactions
  • suppose you are walking in the woods, and you see a grizzly bear—you begin to tremble, and your heart begins to race—you will interpret your physical reactions and conclude that you are frightened (“I am trembling, therefore I am afraid”)
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10
Q

Describe the Cannon-Bard Theory of emotion and broadly describe some evidence in
favor of it

A

Cannon – Bard Theory

  • top-down
  • emotional states arise in brain, which sends signals down to produce physiological reactions
  • emotions are caused by higher brain regions (cerebral cortex)
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11
Q

Describe the Schachter-Singer Theory of emotion and describe in detail the methods, results, and significance of the epinephrine study and the shaky bridge study.

A

Schachter-Singer Theory:

-according to the two-factor theory, both the visceral response to stimulus and the cognitive evaluation of this stimulus contribute to the emotional response
both top-down (CB) and bottom-up (JL) are important

epinephrine (adrenaline) injection experiment:

-aim of study was to determine how a physiological stimulus and a cognitive context might interact to produce the emotional state
to create the physiological factor, subjects were injected with adrenaline or a saline placebo
to create a cognitive context, some subjects were informed of the likely bodily effects of the injections, some were misinformed, and some were uninformed
subjects then interacted with an actor for 20 minutes, who either was angry or euphoric

—>emotional states monitored
—>both the physiological stimulus and a cognitive context affected emotional state

bridge study:

  • surveyed young men after high bridge and low bridge —> gave number
  • only small number of sturdy bridge men called, high number of wobbly bridge men called
  • they had transferred (misattributed) their arousal from fear or anxiety on the suspension bridge to higher levels of sexual feeling towards the female experimenter
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12
Q

Identify the main components of the limbic system (name them and know their anatomy) and be able to describe their respective functions

A

HAHIF

hypothalamus — perception of inputs relevant for survival drives — maintaining homeostasis and internal regulation functions

amygdala — detection of threats and implementation of fear response

hippocampus — spatial memory and navigation (posterior), learning and recalling emotional value (anterior)

insula — sensory experience of emotions

frontal cortex — emotion regulation

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13
Q

Describe what happens in animals and humans with lesions to the amygdala and what this tells us about some of the functions of the amygdala

A

amygdala lesions

Kluver-Bucy Syndrome – removal of anterior temporal lobes: animals stopped displaying fear and anger

Urbach-Wiethe disease, in which the amygdala hardens and shrivels up — patient S.M. — bilateral amygdala lesions “woman without fear”

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14
Q

Kluver-Bucy Syndrome

A

Kluver-Bucy Syndrome – removal of anterior temporal lobes: animals stopped displaying fear and anger

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15
Q

Urbach-Wiethe disease

A

Urbach-Wiethe disease, in which the amygdala hardens and shrivels up — patient S.M. — bilateral amygdala lesions “woman without fear”

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16
Q

Broadly describe the differences in functions in the anterior vs. posterior hippocampus

A

hippocampus — spatial memory and navigation (posterior), learning and recalling emotional value (anterior)

17
Q

Broadly describe the differences in functions in the anterior vs. the posterior insula

A

posterior insula: basic visceral sensations like pain, temperature, itch

anterior insula: complex whole-body sensations like sadness, happiness, anger

18
Q

Describe developmental changes in amygdala – medial prefrontal cortex function and their significance

A

negative correlation with age

positive amygdala-prefrontal connectivity in early childhood that switches to negative functional connectivity during the transition to adolescence

The developmental switch in functional connectivity paralleled by a steady decline in amygdala reactivity

younger children = increased activations in the left amygdala in response to the happy and the fearful relative to neutral emotions

teens = showed midline ACC activations sensitive to the fearful emotion.

in adults = significant ACC and right amygdala activations were shown, seen only to the fearful faces.

19
Q

Know how depressed individuals show differences in limbic system regulation

A

how depressed individuals show differences in limbic system regulation

the ventromedial and ventrolateral prefrontal cortices can decrease amygdala activity during emotion regulation

—in depressed patients, the ventromedial prefrontal cortex (VMPFC) paradoxically amplifies emotional response or just fails to suppress it

20
Q

Define some limbic system neurological changes that occur with mood disorders

A

changes of size of limbic system areas after experience

  • hippocampus atrophies (withers) with depression
  • amygdala enlarges with PTSD
21
Q

Describe the differences between treating mood disorders with neurotransmitters and treating circuitry. Explain why one might be better than the other

A

what makes a substance “mood altering” is not its molecular structure alone

instead it is whether that molecular structure is capable of producing alterations in the activity of neural pathway circuits that modulate emotional states

22
Q

Describe the ways in which we study emotions in the lab

A

-physiological responses
(skin conductance, heart rate, pupil dilation)
-cortisol levels in saliva samples
-fMRI