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radford
chapter 7
| Question | Answer |
|---|---|
| EDA | most obtained by electrodes or sensors placed on the skins surface. |
| Advantage of EDA | noninvasive, no discomfort |
| Disadvantage of EDA | movement constrained |
| electrodermal activity | due to increased sweat with arousal, skin conductance of electricity increases |
| Cardiac reactivity | greater than normal increase in blood pressure and heart rate when performing tasks such as backward serial subtraction |
| evoked potential technique | uses EEG, but the participant is given a stimulus and the researcher assesses specific brain responses to stimulus |
| Brain imaging technique | mad structure and function of brain, PET & fMRI |
| high extroversion | talkative, bored easily, outgoing, likes meeting new people, and hates routine |
| low extroversion | quiet, withdrawn, prefers alone time, avoids large crowds, and like familiar things |
| Eysenck's Theory of extroverts | work to increase and seek out stimulation, prefer higher levels of stimulation, and perform poorly under a stimulation level chosen by another group |
| Eysenck's Theory of introverts | they have a higher level of activity in the brain's ARAS, they work to decrease and avoid stimulation, more reactive to moderate levels of stimulation, and perform best when they chose the stimulation level |
| Behavioral Activation System (BAS) | responsive to incentives (cues to reward) and regulates approach behavior |
| Behavioral Inhibition Systems (BIS) | responsive to cues to punishment, frustration, uncertainty, and motivates ceasing, inhibiting, or avoidance behavior |
| Geen (1984) | introverts and extroverts choose different levels of stimulation but are equivalent in arousal under chosen stimulation |
| Gray | according to him impulsive people do not learn well from punishment because of weak BIS, they learn better by reward |
| Sensation seeking | tendency to seek out thrilling, exciting activities, take risks, and avoids boredom. |
| Zuckerman | high sensation seekers are less tolerant of sensory deprivation; requires much stimulation to get optimal level of arousal. |
| Neurotransmitters | chemicals in the nerve cells that are responsible for the transmission of nerve impulses from one cell to another |
| MAO | enzyme that maintains a proper level of neurotransmitters |
| Dopamine | associated with pleasure |
| serotonin | associated with depression and other mood disorders |
| norepinepherine | associated with fight or flight response |
| novelty seeking | low dopamine levels |
| harm avoidance | low serotonin levels |
| reward dependence | low levels of norepinephrine |
| Morningness | shorter circadian rhythms and hit peak body temperatures and alertness earlier in the day |
| eveningness | longer circadian rhythms. |
| Left frontal hemisphere | is more active when the person is experiencing pleasant emotions |
| Right frontal hemisphere | more active when experiencing unpleasant emotions |
| Type A personality | behavior pattern characteristics by impatience, competitiveness, and hostility |
| fMRI | more detailed, uses radio waves to build the brain image, more detailed images |
| PET Scan | radioactive glucose is injected and computerized pictures of area's inside the brain showing activity levels |
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amac
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