Repetition effects in a lexical decision task: The role of episodic memory in the performance of alcoholic Korsakoff patients

The Mapping from Sound Structure to the Lexicon in Aphasia: Evidence from Rhyme and Repetition Priming

“…In addition, repetition priming effects emerge for nonwords as well as for words in normals, although the effects seem to be smaller and less robust (Mimura et al, 1997). This implicit information processing paradigm has been shown to be preserved in patients with memory disorders (Verfaellie, Cermak, Letourneau, & Zuffante, 1991), and, like the semantic priming phenomenon, appears to occur automatically, without the conscious intervention of the subject.…”

The word frequency effect in recognition memory versus repetition priming

“…Korsakoff patients, like memory-intact subjects, show greater repetition priming effects of low-frequency words than ofhighfrequency words in the lexical decision task (Verfaellie, Cermak, Letourneau, & Zuffante, 1991). In recognition memory tests, Korsakoff patients have shown better performance with low-frequency words than with highfrequency words (Huppert & Piercy, 1976;Verfaellie et al, 1991). Because amnesic subjects perform poorly on tests that require conscious recollection, taken together it seems most parsimonious to interpret these findings in terms of a common perceptual fluency component intact in amnesic subjects that underlies both repetition priming and feelings of familiarity.…”

“…Korsakoff patients, like memory-intact subjects, show greater repetition priming effects of low-frequency words than ofhighfrequency words in the lexical decision task (Verfaellie, Cermak, Letourneau, & Zuffante, 1991). In recognition memory tests, Korsakoff patients have shown better performance with low-frequency words than with highfrequency words (Huppert & Piercy, 1976;Verfaellie et al, 1991).…”

Word-Identification Priming for Ignored and Attended Words

“…For example, repetition priming tasks measure memory as the change in speed, accuracy, or bias in responses to studied relative to baseline items. Priming is often intact in amnesic patients who cannot recollect study episodes (Cermak, Talbot, Chandler, & Wolbast, 1985;Graf, Shimamura, & Squire, 1985;Graf, Squire, & Mandler, 1984;Shimamura, 1986;Vaidya, Gabrieli, Keane, & Monti, 1995;Verfaellie, Cermak, Letourneau, & Zuffante, 1991) and independent of performance on direct tests of recall or recognition in young, healthy participants (e.g., Tulving, Schacter, & Stark, 1982). Thus, different neural systems and memory processes appear to mediate explicit and implicit memory retrieval.…”