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. 2015 May 21;42(1):1651–1659. doi: 10.1111/ejn.12935

Table 1.

The number of errors in the deviant‐detection task

False negatives 0/12 0/12 0/12 1/12 2/12
False positives 0/210 1/210 2/210 3/210 0/210
d 3.57
No. of errors
Exp 1 (= 18) 15 3 0 0 0
Exp 2 (= 18) 13 1 2 1 1
Total 28 4 2 1 1

There were no false negatives in 34/36 participants, and no false positives in 29/36 participants. The d′ is defined as d′ = −Z(false negative rate) − Z(false positive rate), where the function Z(p) is the inverse of the cumulative Gaussian distribution function.