chapter 11 Flashcards
) Motivation is best described as
the physiological and psychological processes underlying the initiation of behaviours
that direct organisms toward specific goals
2) The psychology of motivation can be best summarized as the study of
the processes underlying goal-directed behaviour.
The tendency of the body to maintain a steady state of functioning is called
homeostasis
The chief function of homeostasis is to
maintain a steady state.
) Luisa is working out at a gym and her body temperature begins to rise. Tool cool itself
down, her body begins to sweat. After showering however, her body temperature drops
below ideal, so her body begins to shiver to warm itself up. This example illustrates the
concept of
homeostasis
Hunger and thirst are examples of
drives
) The goal of motivated behaviour is often to _____________ a drive.
reduce
8) In general, motivated behaviour occurs in response to which two factors?
drives and incentives
Saying “I’m full” at the end of a meal is a common way to let others know that you
have reached the point of
satiation.
Rested is to tired as satiation is to
hungry
) Phyllis feels hungry even after she has eaten large meals and has been gaining
weight. A doctor diagnoses her with a neurological disorder that affects a specific
structure in the brain. Which of the following is most likely to be the affected brain
region?
hypothalamus
The lateral hypothalamus may be involved in
the onset of eating.
The two areas of the hypothalamus that appear to be related to eating behaviour as a
result of controlling the level of glucose in the body are called _________________ and
_________________.
ventromedial hypothalamus; lateral hypothalamus
The ventromedial hypothalamus (VMH) may be involved in
stopping the eating response.
Glucostats are
cells that can detect glucose levels.
When specialized cells detect __________ levels of ____________, they trigger an
increase in hunger.
low; glucose
One factor in hunger seems to be the increase in __________, which causes blood
sugar levels to eventually drop several hours after we eat.
insulin
Insulin is a hormone secreted by the pancreas. What role does it play in the body?
Insulin helps cells store circulating glucose for future use.
Which two hormones are released by the digestive system, and are involved in the
regulation of hunger?
CCK and ghrelin
What do sugar and addictive drugs have in common?
They stimulate dopamine release in the nucleus accumbens.
Which of the following would NOT be considered a psychological factor that
motivates eating?
low blood sugar
Most people have a preference for foods with a high fat content (e.g., red meat,
cheese, cream). From an evolutionary perspective, what does this suggest?
At some point in our evolutionary history, seeking out high-fat foods was adaptive.
Research using brain imaging technology indicates that tasting foods high in fat
directly stimulates ____________ areas of the brain.
pleasure
24) Nila’s younger brother does not like the meatloaf their mother made for dinner. When
Nila is not looking, her brother secretly scoops some of his meatloaf onto her plate so
that, although Nila is eating meatloaf, the amount on her plate remains about the same.
Which of the following is most likely to happen?
Nila will eat more than she normally would.