Figure 3.
Mean (+/− SEM) freezing (%CS - %Pre-CS) to the trace CS by subjects exposed to ethanol (E) on postnatal days 4–6, 4–9 or 7–9. Groups were compared to a control group that received sham intubation on postnatal days 4–9 (S4-9). Ethanol given on postnatal days 4–6 produced an effect as severe as ethanol given during the entire third trimester equivalent (4–9). Ethanol exposure limited to PD 7–9 did not affect trace conditioning.