17: Biopsychology of Emotion, Stress, and Health Flashcards
Medial prefrontal lobes are involved in…
Planning and emotion.
Darwin believed that expressions of emotion are…
Products of evolution, e.g. threat displays.
Principle of antithesis…
Opposite messages are often signalled by opposite movements, e.g. submission and aggression.
James-Lange Theory for emotion…
- The experience of emotion is induced by changes in autonomic behaviour (e.g. pulse increase), which in turn are induced by the emotional event.
- Emotional experience depends entirely on feedback from autonomic and somatic nervous system activity.
Cannon-Bard Theory for emotion…
- Believes that emotional experience and emotional expression are parallel, causually unrelated processes. They are both independently excited by the emotional stimuli.
- Emotional experience is totally independent of such feedback.
Both James-Lange and Cannon-Bard theories are wrong…
- Emotion can be experienced independently of both autonomic and somatic feedback.
- But the feedback of these systems can have an important influence.
Sham rage…
The disproportionately aggressive responses to touch produced by decorticated cats.
Through sham rage, Bard discovered that…
- Hypothalamus has role in producing aggressive responses.
- The cortex’s role is involved in inhibiting such responses.
Kluver-Bucy Syndrome…
- Removal of monkey’s anterior temporal lobes induced inappropriate eating and sexual behaviour, repetitive exploration of familiar objects, and lack of fear.
- Related to damage to amygdala.
Polygraphy…
Lie detector (specifically, emotion detector). Measures ANS responses.
Control-question technique..
- An interviewing method employed in mock-crime procedures.
- Assumption is that lies are related to increased sympathetic activation.
Guilt-knowledge technique…
- Counters obstacles of lie-dectection.
- Observes the reactions of a guilty suspect to actual and contrived details of a crime.
The 6 primary facial expressions…
- Surprise, anger, sadness, disgust, happiness, and fear.
- But may be more, such as embarrassment, contempt, and pride.
Facial Feedback Hypothesis…
Putting on a facial expression is more likely to induce that emotion.
The two facial muscles that are contracted during genuine/Duchenne smiles…
- Orbicularis oculi - creases around eyes and forehead. Cannot be induced voluntarily.
- Zygomaticus major - pulls lip corners up. Can be induced voluntarily.
Fear conditioning…
A response of fear from associating a previously non-threatening conditional stimulus to an unconditionally threatening stimulus via exposure.
Bilateral lesions to the medial geniculate nucleus blocks…
- Auditory fear conditioning.
- But lesions directly to auditory cortex doesn’t.
Similarly, lesions to the amygdala blocks…
- Auditory fear conditioning.
There are 2 pathways from the medial geniculate nucleus to the amygdala…
1 - Directly from one to the other. Fear conditioning for simple sounds.
2 - Indirectly via the auditory cortex. Fear conditioning for complex sounds.
The hippocampus has a role in what type of fear conditioning?
Contextual fear conditioning.
Which particular part of the amygdala is involved in conditioned fear?
The lateral nucleus.
The prefrontal cortex projects to the lateral nucleus of the amygdala to…
Suppress conditioned fear.
Aggression directed by the alpha male of a colony at a male intruder is called…
Social aggression.
What is the usual target site of rat-defensive attacks towards the attacking rat?
Face.
Testosterone increases what type of aggression in rats?
Social aggression.
Human violent outbursts are not aggressive attacks, but…
Defensive attacks.
Selye attributed the stress response to the activation of the APAC…
Anterior-pituitary adrenal-cortex system.