Erratum to: Psychopharmacology 215(4): 775 - 784.

DOI 10.1007/s00213-011-2173-z

Subsequent to publication, the authors discovered the following two errors: On page 778 (in the “Results” section), in the sentence at bottom right, beginning with “Follow-up ANOVAs…,” the word “greater” in the phrase “values for the parameter obtained for the WT fits were significantly greater than,” should be replaced with “less.” Similarly, on page 779 (also in the “Results” section), in the first complete sentence, beginning with “Follow-up ANOVAs…,” the word “greater” in the phrase “was significantly greater than,” should be replaced with “less.”