PSYC 100 Chapter Notes - Chapter 10: Neuropeptide Y, Sexual Dysfunction, Orgasm

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Published on 14 Jul 2011
School
Simon Fraser University
Department
Psychology
Course
PSYC 100
Professor
PSYC 100 – MOTIVATION AND EMOTION
10
PERSPECTIVES ON MOTIVATION
Motivation: Processes that influences the direction, persistence and vigor of goal-
directed behavior
Instinct: An inherited characteristic that automatically produces a particular
response when the organism is exposed to a particular stimulus
HOMEOSTASIS AND DRIVES
Homeostasis: State of internal physiological equilibrium for the body
Drives: States of internal tension that motivate an organism to behave in ways that
reduce this tension
APPROACH AND AVOIDANCE MOTIVATION: BAS AND BIS
Behavioral Activation System (BAS): Theory where a person takes action through
signals of potential reward and positive need gratification
Located in prefrontal left hemisphere
Behavioral Inhibition System (BIS): Avoidance motivation, you try to avoid stimuli
that signals potential pain, non-reinforcement and punishment
Located in right frontal lobe
INCENTIVES AND EXPECTANCIES
Incentives: Environmental stimuli that pull an organism toward a goal
Expectancies x Value Theory: Goal-directed behavior is determined by the strength
of the persons expectation that particular behaviors will lead to a goal and by the
incentive value the individual places on that goal
Motivation = Expectancy x Incentive Value
Extrinsic Motivation: Performing an activity to obtain an external reward or avoid
punishment
Intrinsic Motivation: Performing an activity for its own sake because you find it
enjoyable or challenging
PSYCHODYNAMIC AND HUMANISTIC VIEWS
Maslows Hierarchy of Needs
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Psyc 100 Chapter 1
Self-Actualization represents the need to fulfill our potential, is the
ultimate human motive
Self-Determination Theory: Based on 3 fundamental needs: Competence, autonomy
(independence) and relatedness
HUNGER AND WEIGHT REGULATION
Metabolism: Bodys rate of energy utilization
Set Point: A biologically determined standard around which body weight is regulated
Glucose: Sugar fuel for the brain
Cholecystokinin (CCK): Hormone which helps produce satiety
Leptin: Hormone secreted by fat, decreases appetite and increases energy
expenditure
Neuropeptide Y: Stimulates appetite
Lateral Hypothalamus
Hunger on
Ventromedial Hypothalamus
Hunger off
Paraventricular Nucleus: Cluster of neurons with receptor sites that stimulate or
reduce appetite
Anorexia Nervosa: Intense fear of being fat and severely restrict their food intake to
the point of self-starvation
Bilimia Nervosa: Fear of becoming fat, they eat then vomit the food
SEXUAL MOTIVATION
Sexual Response Cycle: A 4 stage cycle of excitement, plateau, orgasm and
resolution
Excitement: Blood flows to certain body parts
Plateau: Arousal builds until enough muscle tension for orgasm
Resolution: The return to normal state after an orgasm
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Document Summary

10: perspectives on motivation, motivation: processes that influences the direction, persistence and vigor of goal- directed behavior. Located in prefrontal left hemisphere: behavioral inhibition system (bis): avoidance motivation, you try to avoid stimuli that signals potential pain, non-reinforcement and punishment. Motivation = expectancy x incentive value: extrinsic motivation: performing an activity to obtain an external reward or avoid punishment. Intrinsic motivation: performing an activity for its own sake because you find it enjoyable or challenging: psychodynamic and humanistic views, maslow"s hierarchy of needs www. notesolution. com. Plateau: arousal builds until enough muscle tension for orgasm. Resolution: the return to normal state after an orgasm www. notesolution. com. Stems from a motive for success and fear of failure. High-need achievers: people high in achievement and low in fear of: will choose any difficulty task because the outcome success vs failure is uncertain because there is no expectation. 4 common features shared: emotions triggered by an external or internal eliciting stimuli www. notesolution. com.

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