Groups

ED 1

ED 2 -7

ED 8 - 10

ED 11

1

Control

Saline

Saline

Washout

Saline

2

3.0 mg/kg cocaine

Saline

3.0 mg/kg cocaine

Washout

3.0 mg/kg cocaine

3

7.5 mg/kg cocaine

Saline

7.5 mg/kg cocaine

Washout

7.5 mg/kg cocaine

4

15.0 mg/kg cocaine

Saline

15.0 mg/kg cocaine

Washout

15.0 mg/kg cocaine