Emotion Flashcards
Name the three components by which emotion is defined.
Cognition, action and feeling.
What do emotional situations arouse?
The autonomic nervous system.
What happens first according to James-Lange theory?
Autonomic arousal and skeletal action occur before the emotion.
Name an issue with James-Lange theory.
People with paralysis report feeling emotion to the same degree.
Give two pieces of information that support James-Lange theory.
People with BOTOX injections report weaker emotional responses, and people with pure autonomic failure report less intense emotion.
What are panic attacks marked by?
Intense sympathetic nervous system arousal.
Explain Mobius syndrome.
An inability to move facial muscles, but still experiencing happiness.
Do physical actions affect emotion? If so, explain.
Yes, as smiling can increase happiness and frowning leads to rating stimuli as less pleasant.
What are the three aspects of emotion?
Cognition, feeling and action.
Which brain areas are involved in emotion?
The limbic system, including the forebrain areas surrounding the thalamus.
What do we use emotion for?
To communicate needs to others and to understand others’ needs.
Which brain area does an initial attack activate?
Corticomedial area of the amygdala.
What does male aggressive behaviour depend on?
Testosterone.
What does aggressive behaviour depend on?
Ratio of testosterone to cortisol.
What does cortisol inhibit?
Violent impulses.
What have been linked to low serotonin release?
Impulsiveness and aggressive behaviour.
How do genes influence violent behaviour?
Through differences in autonomic arousal.
What does the amygdala enhance?
The startle reflex.
Explain auditory information’s role in the startle reflex.
Auditory information stimulates an area of the pons that commands tensing of neck and other muscles.
When is the startle reflex most vigorous?
When the individual is already tense.
Where does the amygdala receive input from?
Pain fibres, vision and hearing.
What controls breathing responses?
The amygdala.
Which brain area controls long-term, generalised emotional arousal?
The bed nucleus of the stria terminalis.
Explain generalised fear.
If a person is attacked or has a fearful experience, they become fearful in a wide variety of circumstances.
What does the amygdala respond strongly to images of?
Photos that arouse fear or photos of faces showing fear.
What does the amygdala respond most strongly to?
When the meaning of the image is unclear, or when the image is an angry face directed towards the viewer, or a frightened face directed elsewhere.
Which people have increases responses to threat?
People with genes for reduced serotonin uptake.
Name two effects that amygdala damage has on emotion?
Individuals can classify emotional pictures without difficulty, and experience little arousal from unpleasant photos.
What is Urbach-Wiethe disease?
A rare genetic condition that causes calcium to accumulate in the amygdala until it wastes away.
What are the effects of Urbach-Wiethe disease?
Experiences fearlessness, had trouble drawing a fearful face, and didn’t look at people’s eyes.
What are the most commonly used anti-anxiety drugs?
Benzodiazephines, like diazepam, valium, alprazolam, xanax.
How do anti-anxiety drugs work?
They bind to the GABA recepetor and facilitate the effects of GABA.
What brain areas to anti-anxiety drugs effect?
The amydgala, hypothalamus, midbrain, and more.
How did Selye define stress?
A non-specific response of the body to any demand made upon it.
Explain general adaptation syndrome.
Threats to the body activate a general response to stress.
Name the three stages in general adaptation syndrome.
Alarm, resistance and exhaustion.
Explain the alarm stage.
Increased sympathetic nervous system activity.
Explain the resistance stage.
Sympathetic response declines, adrenal cortex continues releasing cortisol and other hormones to prolong alertness.