motivation and emotion Flashcards
Motivation
the force that moved people to behave, think, and feel the way that they do
(This definition of motivation is broader than how people usually think about.
This definition includes your desire to eat, drink, have sex, socialize, and yes…
To seek education, a job, etc.)
early approaches to the study of motivation were influenced by what
evolutionary theory
-This view emphasized instincts (unlearned, innate behaviors), and also the ultimate goal of evolution: to reproduce and pass along genes.
.Why do we seek food? To eat, so we can survive and reproduce
.Why do we seek water? So we can survive & reproduce
.Why do we fall in love? To reproduce
THIS IS TOO SIMPLISTIC THOUGH
drive reduction theory
-involves viewing motivation as a function of need and drive
-relationship bwtn need and drive reps. an expression of homeostasis
ex. If I just ate, I have a low need for food, and thus a low drive for it (low hunger)
If I have not eaten, I have a high need for food, and thus, I have a high drive for it (high hunger)
drive reduction theory: need
a deprivation that energizes the drive to eliminate or reduce the deprivation
drive reduction theory: drive
an aroused state that occurs because of a physiological need
homoeostasis
the body’s tendency to maintain an equilibrium, or steady state
does Drive reduction theory work well?
no, We often do things that are counter to homeostatic goals, such as drinking.
- Psychological influences are also important, in a way that drives cannot explain.
ex. done eating dinner, your full, but a slice of chocolate cake can change your mind
optimum arousal theory
- A problem with drive reduction theory is that it assumes that what we do is a function of how much our drive needs to be addressed.
- In other words, the higher the need for food, the more hunger, and the more that the behavior (eating) is performed to address this
- but relationship bwtn preforming a behavior and the arousal created by the need is not that simple
- Yerkes-dodson law
Yerkes-Dodson Law
The psychological principle stating that performance is best under conditions of moderate arousal rather than either low or high arousal.
incentive theories
-downplay the importance of an internal state of tension
E.g., you might eat when not hungry
You also seek goals that have little to do with internal states but nonetheless your motivation to see these goals might come from within
-Instead, you are reactive to (ie., motivated by) your environment even when there is no tension.
intrinsic motivations
reward from within
extrinsic motivations
reward from an outside source
what leads to the motivation of hunger?
most commonsense explanation- you experience hunger when your stomach is empty, this is an incomplete explanation
what is another influence to hunger
- low blood sugar (glucose)
- your body had multiple sensors for your level of blood sugar
- if your blood sugar falls then you tend to get hungrier
leptin
a hormone released by fat cells in the body, which decreases hunger (and increases metabolism)
- theoretically, higher body fat the more leptin released, decreasing your hunger
- but one can develop leptin resistance and insensitivity to this satiation signal results
whats the other hormone that works in opposition and increases hunger?
ghrelin
hypothalamus
hunger and satiety (the opposite of hunger) are controlled by this
satiety
opposite of hunger
ventromedicml hypothalamus
signals satiety
lateral hypothalamus
signals hunger