All mice went through the same schedule of behavioral testing across a 5 week time period. Each individual test was conducted at least 48 hours apart to minimize interference between tests. Delay fear conditioning consists of 3 trials, with Day 2a conducted 24 h following Day 1, and Day 2b 2 h following Day 2a. Prepulse inhibition also consisted of 3 days, with habituation on Day 1, prepulse inhibition the following day (Day 2), and startle response a week later (Day 3).