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emotional pathways in the brain.

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The biggest breakthrough in the study of emotions was the

discovery of two distinct

emotional pathways in the brain.

One of the pathways is fast, and operates mainly at an unconscious

level where it screens incoming stimuli and helps us respond quickly to

stimuli even before they reach consciousness.

▫ These cues seem to have a built-in, innate sensitivity to certain cues-

explains why we have more fears of

spiders, heights and lightening than

cars or electricity.

(3)

▫ When a car pulls out in front of us on the

highway, the thalamus activates and sends an immediate message to the amygdala.

▫ We quickly move our

foot to the brake pedal. 

(4)

The other pathway is

much slower and linked to explicit memory.

▫ While it generates

emotions more slowly, it delivers more complex information to our

consciousness.

▫ This system relies heavily on the cerebral cortex,

which is why we can feel fear, despite knowing

there is no real basis for

that feeling.

(5)

▫ Secondary emotions are more determined by the slow pathway

through the frontal lobes in the cortex.

▫ When we stew in jealousy over the loss of a partner to a rival, the process is

more complex.

▫ Information moves from the thalamus to the frontal lobes for cognitive analysis and integration, and then from there to the amygdala.

▫ We experience the arousal of emotion, but it is accompanied by a more

complex cognitive appraisal, producing

more refined emotions and behavioral

responses.

(6)

▫ The

thalamus acts as the major

gatekeeper

(7)

The two pathways differ,

BUT they do have some things in common.

▫ Both rely heavily on the limbic system.

▫ The amygdala plays an especially important role in both emotion pathways.

▫ In the past it was thought that the

amygdala was simply involved in

negative emotions. Recently it has

been discovered that it plays a role

in positive emotions as well.

(8)

our office

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Emotions are stronger than cognition?

▫ Because there are more neural connections that feed into the frontal cortex from the

amygdala than the other way around, it is not uncommon for people to make decisions

based on emotion rather than

rational thinking.

(10)

SIMPLE QUESTI ONS

‘When you hear a strange noise in your bedroom

late at night, you are likely to react fearfully before your know whether or not there is something to fear.

Which pathway is

involved in this reaction?

‘Now you go into your bedroom, check, and

realize it was just your cat jumping down from a shelf.

You’ve appraised the situation as harmless so the fear abates.’

What’s the pathway here?

(11)

EMOTIONAL FEMALES

WHY FEMALES ARE MORE

EMOTIONAL?

(12)

Biology Genetics Hormones

Female vs.

Male

Culture

Boys and girls learn different lessons about emotion and emotional control.

Boys are largely taught to hide emotions that may be seen as weaknesses and are praised for emotions that show strength and dominance.

Girls are taught the exact opposite

.

(13)

Lateraliz ation of Emotion

▫ Different parts of our brain deal with

different emotions. In the cerebral cortex, the right hemisphere generally specializes in negative emotions and the left hemisphere generally processes more positive and joyful emotions.

◦ The idea that each hemisphere specializes in

different classes of emotion has been called

lateralization of emotion.

(14)

Psychologi cal

Theories of Emotion

James-Lang Theory: Emotion follows behavior: “We feel sorry because we cry; angry because we strike; afraid because we tremble.”

The Schachter-Singer “two-factor” theory:

Emotions do not exist until we add a label to whatever body sensations we are feeling.

Cannon-Bard Theory: Emotions are not just a separate mental experience: “Is that a threat? Then I’m afraid.”

(15)

Copyright © Allyn & Bacon 2007

Emotion Cognitive interpretation fear

“I feel afraid!”

Physiological arousal trembling

increased heart rate

James- Lange theory

Cannon- bard theory

Two- factor theory

Stimulus snake

Stimulus snake

Stimulus

Emotion fear Physiological arousal

trembling

increased heart rate

Physiological arousal trembling

increased heart rate Emotion

fear

(16)

THREE QUESTI ONS

When Mr. Morgan began to

misinterpret his harmless symptoms of autonomic

nervous system

arousal as indicative of an impending heart attack, he suffered an

unusually intense level of fear. His emotional suffering is best understood in terms of the: ?

If people who have just been aroused by watching rock videos are insulted, their feelings of anger will be greater than

those of people who have been similarly provoked but were not previously

aroused. This is best explained by the: ?

Which theory would suggest that you experience the

emotion of anger at the same time that your heart begins to beat rapidly?

(17)

Place your screenshot here

• Yerkes-Dodson law: A theory that a degree of

psychological arousal helps performance, but only to a certain point. Too much or too little arousal can

decrease performance. Also

known as the Inverted U.

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