79 patients constructed sentences beginning with 1 of 6 personal pronouns and containing a past tense verb: the E group was reinforced after I and we sentences with "good." Found evidence for conditioning without awareness when awareness was determined by the 4 questions used in other studies. When awareness was determined after an extensive interview, no evidence was found for learning without awareness. However, some evidence for conditioning without awareness was found in a group which was unaware of the reinforcer and also unaware of a correct contingency, and who showed conditioning. (PsycINFO Database Record (c) 2006 APA, all rights reserved)