Evaluative conditioning of artificial grammars: Evidence that subjectively-unconscious structures bias affective evaluations of novel stimuli.

= 217) were exposed to letter strings generated from two complex artificial grammars that are difficult to decipher consciously. Stimuli from one grammar were paired with positive USs, whereas those from the other grammar were paired with negative USs. Subsequently, participants evaluated new, previously unseen, stimuli from the positively conditioned grammar more positively than new stimuli from the negatively conditioned grammar. Importantly, this effect appeared even when trial-by-trial subjective measures indicated lack of relevant conscious knowledge. We provide evidence for the generalization of EC effects even without subjective awareness of the structures that enable those generalizations. (PsycInfo Database Record (c) 2020 APA, all rights reserved).