CASEY

Question 1

background?

Answer 1

Metcalfe & Mischel (1960’s) performed series of delayed gratification experiments with children using marshmallows - children were separated into high/low delayer groups.

Question 2

AIM? (2)

Answer 2

If participants who were were low delayers at 4, continued to be low delayers in adulthood.
- whether specific regions of the brain are associated with impulse control and reward.

Question 3

Research method?

Answer 3

1. Quasi

Question 4

IV?

Answer 4

IV: whether participants were high or low delayers

Question 5

Sample?
Sample method?

Answer 5

Age 4 = 562
Age 20 = 156
Age 30 = 135
Age 40 = 59

Sample method: opportunity

Question 6

Define high and low delayers?

Answer 6

High = high self-control
Low = low self-control

Question 7

Describe EXP1 procedure? go/no-go task

Answer 7

1. Experiment 1 = go/no-go task
   - participants push a button when they see a certain stimuli. there were ‘hot’ (happy) and ‘cool’ cues (fearful face)

Question 8

Describe EXP2 procedure? ‘hot’ no/go-task

Answer 8

1. Experiment 2 = P’s scanned in FMRi whilst completing ‘hot’ version of go/no-go tasks

Question 9

Conclusion?

Answer 9

High levels of activity in the ventral striatum for low delayers.
- capacity to resist temptation varies by context.

Question 10

Research design?

Answer 10

repeated measures

Question 11

data?

Answer 11

both

Question 12

DV?

Answer 12

DV: their performance on impulse control tasks.

Question 13

EXP1
Results?

Answer 13

Low delayers made more mistakes in the no/go tasks (15.7% for hot cues)

Question 14

EXP2
results?

Answer 14

low delayers had higher false-alarm rates in no-go tasks (14.5%)