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HD 260 prelim 2 review NEW

HD 260 prelim 2 review NEW - Directional Selection versions...

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Directional Selection - versions of the characteristics that enhance survival and reproduction gradually become increasingly represented Stabilizing selection - adaptive to have characteristics not at the extreme ends of dimensions, genetic variability is maintained Sexual jealousy - prevents competing males from sexual contact with their mates reciprocal altruism - the recognition that if we help others they are likely to reciprocate in kind. Biological preparedness - variations in the ease of associating different types of events(albert scared of rat with noise, not curtain or block with noise) cheater detection - a mechanism to detect cheaters who will seek the benefits of social exchange but refuse to reciprocate appropriately domain specificity - humans face a host of different types of social problems, each which requires different strategy solutions discriminative facility - the ability to appraise situations as they present themselves and to respond appropriately endomorph - obese, mesomorph - athletic build, ectomorph - tall, thin and stooped shoulders level of arousal (LOA) - key difference between an introvert and an extrovert ascending reticular activation system (ARAS) - system believed to regulate overall arousal in the cortex optimal level of arousal (OLA) - the arousal level that is most appropriate for doing a given task effectively, too much or too little arousal undermines performance Behavior inhibition system (BIS) - causes individuals to withdraw from certain from certain undesirable stimuli or punishments and thus inhibits behavior (stronger in introverts) Behavioral activation system (BAS) - directs individuals toward certain desirable goals or incentives and thus activates approach behavior (stronger in extraverts) brain asymmetry - people differ consistently in the degree to which the right versus the left side of the brain are activated (used EEG to find this) Right hand side dominant - more ready to respond with negative emotions when they face distress Left hand side dominant - experience pleasant, positive emotions when positive stimuli is encountered Sensation seeking scale - taps into four different aspects: Thrill and adventure seeking, experience seeking, disinhibition, boredom susceptibility Neurotransmitters - are the chemicals that enable the nervous impulses to jump across the synapses Monoamine oxidase (MAO) - maintains the proper level of neurotransmitters by breaking them down, high sensation seekers are low on MAO, NT remain at a high level Gender concepts - beliefs about the types of behavior more appropriate for one sex than for the other Sex role identity - the degree to which an individual regards himself as masculine or feminine androgens - the hormones that in many species act to develop the male brain for aggression tending response to stress - involves care-taking and grows out of attachment system in humans
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