Learning in the Place navigation task, not the New-learning task, is altered by prenatal methamphetamine exposure

Adult rats (prenatally methamphetamine-exposed, saline-exposed and controls) were tested for learning in the Morris water maze. Rats were tested in 4 consecutive days using two different types of learning tests: "Place navigation test" (stable platform position) and "New-learning test" (platform position changed daily). Males exposed prenatally to methamphetamine were slower in the Place navigation learning test than were both the control and saline-exposed males. There were no differences in the New-learning test between groups.