Exam 3 Flashcards
motivation
a need or desire that energizes behavior and directs it towards a goal
instinct
a fixed pattern of behavior that is not acquired by learning, likely rooted in genes
drive
an aroused state related to a physical need
drive-reduction theory
humans are motivated to reduce their drives for hunger, thirst, etc.
restores homeostasis
need > drive > drive-reduction
hierarchy of needs/motives
Maslow, humans strive to satisfy basic needs before moving up on hierarchy
physiology of hunger
complex relationship between stomach, hormones, brain
feeling hungry causes stomach contractions
Which area of the limbic system controls hunger?
hypothalamus
signals appetite-stimulating hormones and appetite-suppressing hormones after eating
glucose receptors in digestive system send signals to hypothalamus
hypothalamic influences on hunger
lateral hypothalamus stimulation causes a desire to eat
ventromedial hypothalamus causes desire to stop eating
removal has consequences
hormonal influences on hunger
insulin from pancreas controls blood glucose
ghrelin from stomach promotes hunger
orexin from hypothalamus promotes hunger
leptin from fat cells decreases hunger
PPY from digestive tract decreases hunger
weight regulation
when weight changes, body adjusts hunger and energy use as well as basal metabolic rate
most mammals have a stable set weight to which they return
basal metabolic rate
rate of energy expenditure for maintaining body functions at rest
other influences on hunger
genetics influences hunger and metabolic rate
cultural influence of climate and spicy food
social influences of social facilitation, unit bias, buffet effect
social facilitation
the presence of others often accentuates typical eating habits
unit bias
we may only eat one serving of foo but eat more if serving size is larger
buffet effect
eat more if more options are available
obesity
an amount of body fat that increases the risk of health problems to the point that weight loss is a health priority
linked to many diseases
obesity and weight control
adaptive for humans to eat energy-rich food but now that is junk food
adaptive to slow down fat burning when food is scarce but can slow down weight loss
social psychology of obesity
weight discrimination is very real
obese people more likely to be depressed or isolated
sex hormones
testosteron and estrogen
direct physical development of sex characteristics, activate sexual behavior
shift across lifespan
sexual response cycle
excitement: getting ready, genitals fill with blood, breathing/pulse speed up
plateau: excitement reaches peak
orgasm: contractions, sexual release
resolution: genitals released from blood, refractory period
hormones and sexual motivation
women show rise in estrogen and testosterone during ovulation
increases sexual desire in women and men around them
paraphilias
sexual desire directed in unusual ways
experience arousal from fantasies involving non-humans/objects, suffering of others, or non-genitals
adolescent sexual activity
age of first intercourse varies over cultures/time
dependent on social environment, not just basic drives
sexual orientation
one’s preferences as an object of their sexual attraction
not related to parenting or childhood abuse
could be genetic or hormonal changes in womb
erotic plasticity
women’s sexual orientation tends to be less strongly felt and possibly more changing and fluid
biological differences in sexual preferences
gay men have smaller hypothalamic cell cluster, larger commissure, react similarly to women to hormones
identical twins share sexual preferences more than fraternal
manipulated in fruit flies
emotion
full body/mind/behavior response to a situation
appraisal
acknowledgement and labelling of an event
determines emotional response according to Schacter-Singer two-factor theory
spillover effect
spillover arousal from one event to the next, influencing a response
emotions without awareness
some reactions develop in a “low road” through the brain, skipping conscious thought and cognition
high road for emotions
sensory receptors > cortex processes/labels info > limbic system (emotion)
low road for emotions
sensory receptors > limbic system
knee-jerk reaction
detecting emotion in others
people can detect nonverbal cues, but poor at detecting deceiving expressions
women are better at reading and expressing emotion (except anger)
differneces in gender and nonverbal behavior
women better at reading emotion and expressing it with faces
people attribute female emotionality to disposition and male emotionality to circumstance
universal emotions
there are some universal primary emotions
elaborated on by culture in some ways
behavioral feedback effect
behavior influences our own and other’s thoughts, feelings, and actions
lie detection
measure emotion-linked changes in breathing, cardiovascular activity, and perspiration
compare responses to control responses, designed to evoke mild arousal
not always reliable
polygraph
2 dimensions of emotion
low to high arousal
unpleasant to pleasant
both are continuous
pros and cons of anger
+: flash of anger gives us energy and initiative to fight
-: persistent anger is unhealthy for the body
decreasing anger
waiting, distraction, distancing oneself, exercise, verbal expression/releasing anger, catharsis
happiness
high arousal emotion like anger
mood and a cognitive filter
positive psych
feel-good, do-good
feel good do good phenomenon
when in a good mood, we do more for others
doing good also feels good
Can money buy happiness?
When lifting people out of extreme poverty
adaptation-level phenomenon
we adjust our neutral levels relative to our own experience
we adjust highs and lows relative to our neutral level
if current condition changes we come to consider this level our new normal
relative depravation
the perception that you are worse off than those you compare yourself to
more likely to envy peers than beggars or billionaires
correlates of happiness
high self-esteem in individualistic countries
optimistic, outgoing, agreeable
close friendships or satisfying marriage
work and leisure that engage their skills
active religious faith
sleep well and exercise
not correlated with happiness
age, gender, parenthood, physical attractiveness
attribution
explanation for someone’s (including own) behavior
internal (dispositional) and external (situational)