Unit 7 Flashcards
Motivation, Emotion, Personality
Hunger
Insulin- reduces glucose in the bloodstream. Glucagon- increases glucose in the bloodstream. Foods with simple sugars spike insulin levels, this leads to low blood sugar and increased appetite. Weight set point- hypothalamus tries to maintain a certain weight. Basal metabolic weight- how much energy your body can burn at a resting point.
Lateral Hypothalamus
Causes you to feel hunger.
Ventromedial Hypothalamus
Causes you to feel full.
Orexin
Neuotransmitter in the lateral hypothalamus. Increases appetite.
Leptin/Ghrelin
Leptin- signals to the hypothalamus that the body has had enough food. Ghrelin- released from the lateral hypothalamus and increases hunger.
Galanin
Neurotransmitter in the hypothalamus. Increases desire for food high in fat.
Enterostatin
Neurotransmitter in the hypothalamus. Decreases desire for food in high fat.
Obesity
20%+ over ideal body weight. Family history, hormones such as leptin, and overeating.
Anorexia Nervosa and Bulimia Nervosa
Anorexia nervosa- reduces eating to the point where their body is significantly low. Bulimia nervosa- binging on enormous amounts of food and purging.
Motivation
Process by which activities are started until needs are met.
Extrinsic- driven due to an external reward.
Intrinsic- being motivated because the act itself is rewarding and satisfying.
Instincts (fixed action patterns)- innate patterns of behavior.
Evolutionary approach- humans are motivated by actions that optimize “fitness”.
Need Vs. A Drive
Need- requirement material that is essential for survival.
Drive- the feeling to act to strive for that need.
Drive Reduction Theory
Two kinds of drives that motivate: primary drives- survival needs (hunger and thirst). Secondary drives (acquired)- learned through experience (money and approval).
Homeostasis or balance is needed (we become “off balance” until a primary drive is fulfilled).
Homeostasis
The body’s ability to maintain a stable internal environment despite changes in the external environment.
McClelland’s Three Types of Needs
Need for Affiliation (nAff)- need for friendly interactions and relationships.
Need for Power (nPow)- need to have control over other people.
Need for Achievement (nAch)- strong desire to achieve goals.
Relative Deprivation
A sense of feeling deprived by not having something to which you feel entitled.
Stimulus Motive
One that appears to be unlearned and causes an increase in stimulation (curiosity, playing, exploration).
Arousal Theory
People have an optimal (best) level of tension (spectrum between anxiety and boredom).
Yerkes-Dodson Law
Graph of the relationship between task performance and arousal. Speaking directly- low tension; few errors. Speaking to a crowd- for many, high tension: more errors, poor performance.
Sensation Seeker
Research by Zuckerman. A person who needs more arousal.
Incentive Theory
Behavior explained by external stimuli and their rewards. Cause people to act solely on incentives and not any other needs.
Self-Determination Theory
3 universal needs for all humans. Autonomy- need to control one’s behavior. Relatedness- need to feel a sense of belonging. Competence- need to master challenges.
Maslow’s Hierarchy
Levels of needs. Can move to the next level once one is met. Physiological -> Safety -> Love/Belonging -> Esteem -> Self-Actualization (full human potential).
Emotion
The “feeling” part of consciousness- physical arousal, behavior that reveals your feeling to the outside world, inner awareness of the feeling.
In the brain- the amygdala is the emotional center (rage, fear, pleasure). The right side of the brain is more active when distinguishing facial expressions.
Ekman’s 7 Universal Expressions
Anger, fear, disgust, happiness, surprise, sadness, contempt.