Table 4 Overview of the contingency degradation experimental design

From: Cortical glutamate and GABA are related to compulsive behaviour in individuals with obsessive compulsive disorder and healthy controls

Block number

Condition

P (20p received

following action)

P (20p received

without action)

ΔP (programmed

contingency)

1

Non-degraded

0.60

0.00

0.60

2

Non-degraded

0.60

0.00

0.60

3

Non-degraded

0.60

0.00

0.60

4

Partially-degraded

0.60

0.30

0.30

5

Fully-degraded

0.60

0.60

0.00

6

Non-degraded

0.60

0.00

0.60

7

Partially-degraded

0.60

0.30

0.30

8

Fully-degraded

0.60

0.60

0.00

  1. p probability, ΔP delta/difference of the two contingencies.