0000000000848873
AUTHOR
Lina-marcela Cómbita
Recognition by familiarity is preserved in Parkinson's without dementia and Lewy-Body disease.
Objective The retrieval deficit hypothesis states that the lack of deficit in recognition often observed in patients with Parkinson's disease is because of the low retrieval requirements of the task, given that these patients have retrieval and not encoding deficits. To test this hypothesis we investigated recognition memory by familiarity in Parkinson's patients and in patients with Lewy Bodies disease and Parkinson with dementia. Method We analyzed to what extent the experimental groups were able to recognize by familiarity in a typical yes/no recognition memory task. The experimental groups were patients with early nondemented Parkinson's disease, advanced nondemented Parkinson's disease…
Implicit relational effects in associative recognition
We study the contribution of implicit relatedness to associative recognition in two experiments. In the first experiment, we showed an implicit improvement in recognition when the stimulus elements of each word pair shared common letters and they were unpaired at test. Moreover, when asked to study the stimuli under divided attention, recollection was affected, but not the effect of perceptual familiarity. In a second experiment, we replicated the effect of divided attention, and we showed that it did not affect the familiarity measured by a choice test at the item level. Overall, both experiments indicated that familiarity acts by unitizing the association, and not simply by establishing s…