Classical conditioning

Question 1

Garcia & Joelling (1966) Bright noisy tasty water

Answer 1

1) Group 1 rats drank flavoured water in the presence of light and sound and were made sick with LiCl
2) Group 2 rats drank flavoured water in the presence of light and sound and were given an electric shock
Group 1 avoided the taste, but not the light or sounds - whilst group 2 avoided the lights, sounds, but not the taste. Shows that group 1 paired the taste of the water with feeling sick whereas group 2 paired light+sound with the electric shock. This shows that the relationship between taste and illness is easily learnt – which makes evolutionary sense.

Question 2

Evidence for inhibtion

Answer 2

1) Disinhibition
2) Conditioned inhibition
3) Retardation

Question 3

Disinhibition

Answer 3

If when CR being trained an extraneous stimuli, such as a loud sound is introduced, it will remove the CR on this trial (or reinstate it if its an extinction trial)

Question 4

Conditioned inhibition

Answer 4

Train: tone --> food --> salivation
Then train: light --> tone --> no food 
Testing: tone --> salivation
light --> no salivation 
=light has become a conditioned inhibitor

Question 5

Retardation

Answer 5

It should be harder to train an inhibitory stimulus to become an excitatory one, compared to if it was initially neutral. I.e - should take more trials.

Question 6

Second order conditioning

Answer 6

Train: tone –> food –> salivation
Then train: light –> tone
Test: light –> salivation
=Light has become as CS

Question 7

Sensory preconditioning

Answer 7

Train: light –> tone
Then train: tone –> food –> salivation
Test: light –> salivation
=Light has become a CS due to its previously trained association with the tone