Five experiments are reported that concern selective perception and representation following dichotic presentations of competing word pairs differing only in their initial consonants . Only one word from each pair tended to be subjectively perceived, even when participants were encouraged to guess two words. Robust selective perception effects were evidenced as a function of stimulus affective valence. Control tasks showed that these effects could not be attributed to report biases or to the acoustic properties of the stimuli. The unreported words (...) were not recognized on a two-alternative forced-choice task but were recognized with a more sensitive ranking task. Additional cognitive activity during the intertrial interval weakened memory only for the words reported as perceived. Moreover, negative affective valence decreased the recognition of words reported as consciously perceived but increased recognition of unreported words. The implications of these findings for theories of unconscious processing are discussed. (shrink)

The use of list-learning paradigms to explore false memory has revealed several critical findings about the contributions of similarity and relatedness in memory phenomena more broadly. Characterizing the nature of “similarity and relatedness” can inform researchers about factors contributing to memory distortions and about the underlying associative and semantic networks that support veridical memory. Similarity can be defined in terms of semantic properties, lexical/associative properties, or structural properties. By manipulating the type of list and its relationship to a non-studied critical (...) item, we review the effects of these types of similarity on veridical and false memory. All forms of similarity reviewed here result in reliable error rates and the effects on veridical memory are variable. The results across a variety of paradigms and tests provide partial support for a number of theoretical explanations of false memory phenomena, but none of the theories readily account for all results. (shrink)