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Startle magnitude to Noise alone (NA), AX+ trials (danger signal), and BX− trials (safety signal) during the conditioning phase for the two groups. * denotes p<0.05 for trial type (NA vs. AX+, p<0.05; AX+ vs. BX−, ns); *** denotes p<0.001 for trial type (NA va AX+, p<0.001; AX+ vs. BX−, p<0.05); † denotes p<0.001 for Block
