U09 - Motivation & Emotion Flashcards
Motive
- internal force that moves individuals to act in a certain way
Instincts
- innate, genetically endowed, do not require learning
Homeostasis
- process by which organisms maintain stable internal environment despite changes in the external environment
- must compensate for changes in the environment to keep the internal environment within range
drive reduction theory of motivation
- drives organisms to engage in activities that will reduce this tension and restore homeostasis
-explains how people are motivated to reduce physiological imbalances, or “drives,” to maintain homeostasis, or a steady state
drive:
- internal state of arousal or tension caused by deviation from homeostatic set-point
Congenital insensitivity to pain (CIP)
- rare genetic disease characterized by complete inability to perceive pain
value of pain
- pain is crucial for protecting from injuries
- pain is our body’s way of telling us to pay attention to something that could cause tissue injury or death
- captures attention and motivates action
- supersedes other goals we may have in the moment
Pain matrix
- A distributed network of brain regions, including the amygdala, that respond to many types of pain.
- Whether it’s your toe that’s stubbed or your friend who’s snubbed, your pain matrix leaps into action. Even the dread we feel while waiting for something awful to happen (like getting a shot) activates the pain matrix
Sensory component of pain
- pain signals provide specific information about what is happening
- this is the sensory component of pain (eg. somatosensory cortex)
Affective component of pain
- motivation for a specific response
- this is the affective component of pain (eg. dorsal anterior cingulate cortex anterior insula)
reward (used 3 ways in psyc literature)
- something we want
- something we like
- something that serves as a reinforcer in learning
Wanting
- the desire for a reward, sense of anticipation
- typically measured by amount of effort individual will exert to obtain the reward
Liking
- the subjective feeling of pleasure we experience when we receive a reward
- the hedonic gloss
- that pleasure
Alliesthesia
- reward value of stimulus increases with effectiveness of that stimulus in restoring homeostasis
- eg. food tastes better when you’re hungry
Reward and pain are interconnected
- extensive similarities in neurobiological substrates of pain and pleasure
- pain can inhibit perception of reward
- reward may decrease pain perception (placebo effects)
- relief from pain is more than simply an attenuation of pain, it is pleasurable
- strength of signal and pleasure of relief depends on degree to which negative expectancy is violated
- pessimists (who generally hold more negative expectations) experience greater dread of adverse event and greater relief when adverse event is avoided
nucleus accumbens
???
Harry Harlow (1958) on love (and monkey experiment)
- love and affection can, and should be, studied scientifically
- point of departure for study of love: the affectionate bond of a child for its mother
experiment
- infant monkeys raised alone in a lab showed severe developmental issues
- noted strong attachment the laboratory-raised infants developed to the soft cloth pads used to cover the floor of their cages
- made two types of surrogate mothers, one wire hard and one covered in soft cloth
- so conclusion: attachment isn’t just about food, the monkeys preferred the cloth, they spent their most time with it
- Behaviourist perspective: childcare viewed in terms of “training”, “stimuli”, “conditioned responses
- Harlow’s work helped understand significance of physical affection for child development
John Bowlby’s attachment theory (1969)
- took evolutionary perspective
- infants cannot survive without caregiver to protect them from harm - some mechanism must be in place to keep infants close to caregivers
- posits the existence of a universal, evolved biobehavioral system (attachment system) that motivates maintenance of proximity to caregivers (attachment figures) in infancy/childhood, thus promoting survival
brain opioid theory of attachment
The brain opioid theory of attachment proposes that the brain’s opioid system, which regulates pleasure and pain, is central to forming and maintaining social bonds. Positive social interactions, such as affection and bonding, release opioids like endorphins, creating feelings of comfort and reward that reinforce attachment. Conversely, the absence of social connection or loss of an attachment figure reduces opioid activity, leading to emotional distress. This theory highlights the biological basis of attachment, showing how brain chemistry supports bonding and emotional regulation.
glucostatic hypothesis
- low glucose levels serve as internal hunger cue
lipostatic hypothesis
- body regulates food intake and energy expenditure over the long-term based on amount of stored fat
hypothalamus
- receives signals related to levels of glucose, leptin, and other hunger and satiety hormones
dual-center theory
- The contrasting roles of these two hypothalamic centers are described by the dual-center theory, in which the lateral hypothalamus serves as the “go” center for eating, while the ventromedial hypothalamus serves as the “stop” center.
psychological factors that influence eating behaviors
- Social, cultural, and other contextual factors influence eating behaviour
- tendency to consider single unit/serving/portion of food as appropriate amount to eat, regardless of the size or caloric content of the unit
- Influenced by cultural norms
- Standards around physical attractiveness may promote eating disorders like anorexia and bulimia
- Anorexia nervosa= characterized by extreme fear of gaining weight & caloric restriction§
- Bulimia= characterized by episodes of overeating followed by compensatory behaviours(e.g., vomiting, laxative use, fasting, excessive exercise)
estrus
- mammal’s period of heightened sexual receptivity and fertility
- variation in frequency and duration across species
- during estrus, sexual receptivity and behavior displays to attract mates
- mediated by the sex hormone - estrogen
- humans have menstrual cycle rather than estrus
- series of changes in hormone production that prepare the body for pregnancy
concealed ovulation, leaky cues
- possible evolutionary reasons: securing continuous male investment, avoiding unwanted sexual advances, avoiding aggression and competition with other females
- some have argued that there may be subtle cues signaling ovulation, like attractiveness-enhancing behavior, male partners more jealous, scents, faces, and voices, etc)
testosterone and estrogen/estradiol
- correlated with sexual interest in males
- eg. men with higher testosterone levels tend to have stronger sex drive and report more frequent thoughts about sex
- in men, the levels fluctuate throughout the day, ay respond to events and life changes like competition and parenthood
- Estrogen/estradiol: Increases sexual desire and arousal in women, particularly during the fertile phase of the menstrual cycle, when estrogen levels peak. It enhances physical and emotional readiness for sexual activity.
Testosterone: Drives sexual desire and behavior in both men and women. In men, it maintains libido and erectile function, while in women, it contributes to sexual motivation, especially when estrogen levels are low.
Together, these hormones influence sexual desire, behavior, and reproductive readiness by acting on brain regions linked to motivation and arousal.
achievement motivation
- desire to excel, succeed, or outperform others
- ppl may vary in strength of their achievement motivation, but contextual factors matter as well
- achievement-related behavior can arise from either a fear of failure or a desire for success
approach motivation
- propensity to move towards some desired stimulus (reward)
avoidance motivation
- propensity to move away an undesired stimulus (punishment, something that causes pain)