Figure 2.

Ratings of personal reference in different stimulus categories. The number of trials (y‐axis) in different conditions and stimulus categories (error bar: standard deviation) have been examined within each group using paired t‐tests. Furthermore, between‐group comparisons have been performed using independent‐samples t‐tests. In healthy subjects, no significant difference in the number of high and low referenced pictures of natural stimuli has been observed. Gambling pictures have been significantly rated less frequently high referenced than low referenced as it has been for alcohol stimuli. In alcoholics, the comparison of the number of high and low referenced pictures of natural stimuli revealed a statistical trend. No statistical difference between the number of high and low referenced gambling or alcohol pictures has been observed. In the group comparison, we only found significant differences for the performed personal reference ratings on alcohol stimuli. Abbreviations, *p < 0.05. [Color figure can be viewed in the online issue, which is available at www.interscience.wiley.com.]