Animal documentation
Source The Jackson Laboratory (Bar Harbor, ME) 
NIH31 5K52 (LabDiet/PMI Nutrition, St. Louis MO), provided ad libitum until behavioral testing began (at that point they were food restricted such that they weighed 85-90% of base weight)
Photoperiod 12h:12h light-dark cycle (lights on at 0600h; testing between 1100 and 1600h) All procedures approved by The Jackson Laboratory Animal Care and Use Committee and conducted in compliance with the National Institutes of Health Guidelines for the Care and Use of Laboratory Animals.