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2 DO SAFETY BEHAVIORS PRESERVE THREAT BELIEFS? 45 trials), F (1,55) = 17.69, p < .001, η p 2 = .24, compared to no avoidance or safety behavior trials (the A+ trial). Additionally, in the Extinction phase, pupil dilation responses for C were larger in the Full avoidance condition (C*- trials) than in the Control condition (C- trials), F (1,55) = 13.94, p < .001, η p 2 = .20. Figure 1. Mean threat expectancy for A, B, and C in the Full avoidance condition (top panel) and Control condition (bottom panel) in Experiment 1. See Table 1 for explanation of trial types. B- B- B- B- A+ A+ A+ A+ A*(+) A~[+] C+ C+ C- C*- 0 20 40 60 80 100 Pavlovian acquisition Safety behavior acquisition Extinction Test Threat expectancy Full avoidance condition B- B- B- B- A+ A+ A+ A+ A*(+) A~[+] C+ C+ C- C- 0 20 40 60 80 100 Pavlovian acquisition Safety behavior acquisition Extinction Test Threat expectancy Control condition