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. Author manuscript; available in PMC: 2011 Jan 1.
Published in final edited form as: Am J Psychiatry. 2009 Nov 16;167(1):47–55. doi: 10.1176/appi.ajp.2009.09030410

TABLE 3. Acquisition Data for Standardized Startle EMG and Behavioral Risk Ratings Across Conditioned Danger Cues (CS+), Conditioned Safety Cues (CS−), and Intertrial Intervals for Patients With Panic Disorder and Healthy Comparison Subjects.

Startle EMGa Risk Ratingsb


Patients With Panic Disorder (N=19) Healthy Comparison Subjects (N=19) Patients With Panic Disorder (N=19) Healthy Comparison Subjects (N=19)




Stimulus Mean SD Mean SD Mean SD Mean SD
CS+ 56.34 5.18 55.45 5.12 2.50 0.43 2.72 0.25
CS− 50.28 4.78 49.16 3.96 1.60 0.63 1.15 0.22
Intertrial intervals 51.35 3.97 50.93 3.94 1.81 0.59 1.28 0.31
a

Raw startle EMG was standardized with the use of within-subject T score transformations ([([EMGsingle trial − EMGmean]/SD)*10] + 50).

b

3-point scale, where 1=no risk, 2=some risk, 3=a lot of risk.