Reference : The use of perceptual fluency in patients with Alzheimer disease: the role of expectation
Scientific congresses and symposiums : Paper published in a journal
Social & behavioral sciences, psychology : Theoretical & cognitive psychology
http://hdl.handle.net/2268/130794
The use of perceptual fluency in patients with Alzheimer disease: the role of expectation
English
Willems, Sylvie mailto [Université de Liège - ULg > Services généraux (Fac. de psycho. et des sc. de l'éducat.) > Clinique psychologique et logopédique universitaire (CPLU) >]
Van der Linden, Martial mailto [Université de Liège - ULg > Département de Psychologie : cognition et comportement > Psychopathologie cognitive >]
Apr-2008
Journal of Cognitive Neuroscience
MIT Press
Yes (verified by ORBi)
International
0898-929X
1530-8898
Cambridge
United Kingdom
Cognitive Neuroscience Society, 15th Annual Meeting
du 12 avril 2008 au 15 avril 2008
CNS
San Francisco.
USA
[en] alzheimer ; recognition ; strategy
[en] We investigated whether the use of perceptual fluency as recognition cue by patients with Alzheimer disease (AD) depends on whether fluency is perceived as relevant to the recognition decision. In normal subjects, enhanced perceptual fluency increased positive recognition responses when study and test stimuli were presented in the same sensory modality but not when stimuli were presented in different modalities (Westerman et al., J. of Mem. & Lang., 47, 2002). These results suggest that the use of perceptual fluency as a heuristic in recognition memory depends on the correspondence between study and test modalities and thus on the perceived usefulness of fluency. We investigated this change of sensory modality between study and test phases in 16 AD patients and 16 matched normal controls by using a verbal recognition task. The perceptual fluency of recognition test items was enhanced by briefly presenting a prime that matched the subsequent test item. We observed that changes in modality attenuated the contribution of fluency to the recognition decision in both subjects groups. In addition, we noted a positive correlation between fluency use and metamemory self-evaluation. These results suggest that the fluency heuristic is subject to metacognitive control in AD patients, exactly in the same way as normal subject, since patients’ attributions of perceptual fluency depend on expectations about relevance of fluency as memory cue.
http://hdl.handle.net/2268/130794

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