The impact of extinction timing on pre-extinction arousal and subsequent return of fear

Table 2.

Regression coefficients

b0 SE t P b1 SE β t P
Immediate extinction
 Subjective arousal
  Early test 10.049 11.795 0.852 0.402 1.490 2.236 0.132 0.666 0.511
  Late test 20.733 18.916 1.096 0.284 0.004 3.654 <0.001 0.001 0.999
  All subjects 14.660 10.484 1.398 0.168 0.884 2.006 0.062 0.441 0.661
 Tonic SC
  Early test 0.193 0.180 1.076 0.294 −0.016 0.022 −0.156 −0.740 0.467
  Late test −0.026 0.124 −0.205 0.840 0.014 0.018 0.178 0.768 0.452
  All subjects 0.103 0.112 0.918 0.364 −0.005 0.015 −0.054 −0.353 0.726
 Salivary cortisol 0.424* 0.201 2.104 0.047 −0.097 0.049 −0.384 −1.953 0.064
Delayed extinction
 Subjective arousal
  Early test 11.775 13.814 0.852 0.403 4.562 3.771 0.250 1.210 0.239
  Late test 3.137 8.451 0.371 0.714 0.866 2.436 0.074 0.355 0.726
  All subjects 6.572 8.333 0.789 0.434 2.991 2.337 0.184 1.280 0.207
 Tonic SC
  Early test −0.178 0.112 −1.592 0.129 0.034 0.017 0.422 1.976 0.064
  Late test −0.129 0.109 −1.183 0.254 0.038 0.021 0.405 1.772 0.095
  All subjects −0.147 0.075 −1.952 0.059 0.034* 0.013 0.405* 2.655 0.012
 Salivary cortisol −0.150 0.204 −0.737 0.469 0.039 0.054 0.156 0.723 0.478

  • (SC) Skin conductance, (SE) standard error.

  • *P < 0.05.

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