Table 1.

Electroconvulsive therapy (ECT) regimens

ECT day	1		2		3		4		5		6		7
Time	AM	PM	AM	PM	AM	PM	AM	PM	AM	PM	AM	PM	AM	PM
13 ECS	ECS	ECS	ECS	ECS	ECS	ECS	ECS	ECS	ECS	ECS	ECS	ECS	ECS	None
6 ECS	Sham	Sham	ECS	Sham	ECS	Sham	ECS	Sham	ECS	Sham	ECS	Sham	ECS	None
1 ECS	Sham	Sham	Sham	Sham	Sham	Sham	Sham	Sham	Sham	Sham	Sham	Sham	ECS	None

Shown are 3 ECT regimens used in the study. For each regimen, the total duration of the procedure was 7 days. Time between AM and PM procedures was 8 h. Behavioral test was performed 24 h after the last electroconvulsive electroshock (ECS)

Sham = animals were connected to the pulse generator but no ECS was delivered