Table 1.

Experimental groups of the behavioral study and the procedure that they underwent on each of the 3 treatment days

Group designation	Treatment 1	Treatment 2	Testing	Figures
V-IS/IS	V-IS	IS	SHTLBOX	4
V-ES/IS	V-ES	IS	SHTLBOX	4
V-HC/IS	V-HC	IS	SHTLBOX	4–8, 10, 11
M-IS/IS	M–IS	IS	SHTLBOX	4
M-ES/IS	M-ES	IS	SHTLBOX	4
M-HC/IS	M-HC	IS	SHTLBOX	4
ES-V/IS	ES-V	IS	SHTLBOX	5
ES-M/IS	ES-M	IS	SHTLBOX	5
IS/V-IS	IS	V-IS	SHTLBOX	6
ES/V-IS	ES	V-IS	SHTLBOX	6
IS/M-IS	IS	M-IS	SHTLBOX	6
ES/M-IS	ES	M-IS	SHTLBOX	6
M-ES/M-IS	M-ES	M-IS	SHTLBOX	7
V-HC/V-HC	V-HC	V-HC	SHTLBOX	4–8, 10, 11
ES/IS/V-SHTLBOX	ES	IS	V- SHTLBOX	8
ES/IS/M-SHTLBOX	ES	IS	M- SHTLBOX	8
A-ES/IS	A-ES	IS	SHTLBOX	10
A-ES/A-IS	A-ES	A-IS	SHTLBOX	10
ES-A/IS	ES-A	IS	SHTLBOX	10
V-ES/A-IS	V-ES	A-IS	SHTLBOX	11

SHTLBOX, Shuttle box. If drug abbreviation precedes experimental treatment abbreviation, the drug was given before the treatment. If drug abbreviation follows experimental treatment abbreviation, the drug was given after the treatment.