Table 1 Distribution of sign- and goal-tracking animals by sex and drug exposure (SAL = saline, NIC = nicotine). A tracking score (see text) was calculated for each rat, based on conditioned approach behavior on the last 4 days of training. The score was used to classify rats within sex and drug exposure group as goal-trackers, intermediate, or sign-trackers
From: Sex differences in nicotine-enhanced Pavlovian conditioned approach in rats
| Goal-tracker | Intermediate | Sign-tracker | |
|---|---|---|---|
| SAL Female, n = 12 | 25% | 50% | 25% |
| NIC Female, n = 12 | 0% | 58% | 42% |
| SAL Male, n = 13 | 46% | 31% | 23% |
| NIC Male, n = 11 | 9% | 82% | 9% |