Figure 2From: Electrophysiological correlates of associative learning in smokers: a higher-order conditioning experimentSmokers' (upper) and non-smokers' ERPs (lower) in response to CS1 smoke and CS1 neutral in Block1 and Block 2. Current Source Density (CSD) maps represent differences in activity between CS1smoke and CS1neutral in the 300-800 ms timeframe (P3).Back to article page