Casey

Question 1

Aim of Casey

Answer 1

To conduct a longitudinal study to investigate delayed gratification 40 years from when participants were first tested

Question 2

The participants of Casey

Answer 2

562 four-year-olds
From Stanford university nursery
155 of original sample studied in their 20s
135 studied in their 30s

Question 3

How many participants did the study end with (casey)

Answer 3

59 participated in exp1 go/no-go
27 agreed to do exp2 - fmri

Question 4

Casey procedure

Answer 4

Hot go/no go task
Ps asked to click when they saw a happy face and not to click when they saw a fearful face
Cool go/no go task
Pe asked to click when they saw a specific gender (go task) and not click when other gender (no-go task)

Question 5

Casey result

Answer 5

Low delayers made more errors on the hot tasks (emotion) than the cool task (gender)
Made more mistakes on no-go that go - struggled to resist temptation to click
More activity in the ventral striatum (impulsive behaviour) and less in the inferior frontal gyrus (self control / composure) for low-delayers

Question 6

Design of Casey

Answer 6

Longitudinal quasi experiment