Table 2.

Timeline of procedures used in Experiment 2.

Procedure	Schedule
Adaptation to 2% sucrose	Days 1–7
Baseline fluid intake tests; body weight measurements	Days 8–14*
Weeks 1 and 2 isolation or pairing	Days 15–28
Week 2 fluid intake test; body weight measurements	Day 29
Weeks 3 and 4 isolation or pairing; oxytocin or vehicle administration	Days 29–42
Week 4 fluid intake test; body weight measurements	Day 43
FST training period	Day 45
FST test period	Day 46

Note: All acute procedures were conducted during the light period (3–5 hours following light onset).

Abbreviations: FST, forced swim test.

^*2 fluid intake tests were conducted, separated by 5 days.