Erratum to: Pshychopharmacology 232: 3947–3966

DOI 10.1007/s00213-015-4081-0

The original version of the above article contained a mistake in the equation found in page 3953. Correct equation should be:

$$ \begin{array}{cc}\hfill c=-\frac{z\left(\mathrm{H}\mathrm{R}\right)+z\left(\mathrm{FAR}\right)}{2}\hfill & \hfill \mathrm{Responsivity}\;\mathrm{index}\;\left(\mathrm{R}\mathrm{I}\right)=\frac{\mathrm{HR}+\mathrm{FAR}\hbox{-} 1}{1\hbox{-} {\left(\mathrm{H}\mathrm{R}\hbox{-} \mathrm{FAR}\right)}^2}\hfill \end{array} $$