FIGURE 3. Risk Ratings and Reaction Times for Conditioned Fear Generalization in Patients With Panic Disorder and Healthy Comparison Subjects^a.

^a Participants were instructed to rate their perceived risk of shock, answering according to their “gut feeling” of risk (1=no risk, 2=some risk, 3=high risk), and to respond as quickly as possible using a computer keyboard. CS+=conditioned stimulus paired with shock; CS−=conditioned stimulus unpaired with shock; C1, C2, C3, and C4=generalization stimulus classes 1, 2, 3, and 4; ITI=intertrial interval.