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Changes in a metacognitive heuristic in amnesia
Thonnard, Adeline; Geurten, Marie; Willems, Sylvie
20176TH SCIENTIFIC MEETING OF THE FEDERATION OF THE EUROPEAN SOCIETIES OF NEUROPSYCHOLOGY
 

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Keywords :
fluency; heuristic; metacognition
Abstract :
[en] Amnesic patients rely predominantly on familiarity for recognition. This familiarity is thought to be based on processing fluency. However whether amnesic patients use normally this metacognitive heuristic is not yet known. We used the Jacoby and Whitehouse (1989)’s illusion paradigm with 8 patients with severe memory impairments and 16 matched control. We found a fluency effect, with more “old” responses being given to matched-prime test words than to mismatched-prime test words. In addition, we replicated the effect of modality (Westerman et al., 2002) in the control group. The fluency induced the recognition illusion, but only when there was a match between study and test sensory modality. However, this modality effect seems limited to control participants. Amnesic patients seem unable to disregard fluency when there was a shift in the sensory modality of the study and test stages. Overall, these findings support the notion that amnesic patients did not modulate their use of the fluency heuristic in situations where fluency is judged non-diagnostic of prior exposure by healthy participants. On the whole, these findings suggest that processing fluency can constitute a cue for recognition decision in amnesia. However, this influence is not direct and is subject to metamemorial belief changes.
Disciplines :
Neurosciences & behavior
Author, co-author :
Thonnard, Adeline ;  Université de Liège - ULiège > Master sc. psycho., à fin.
Geurten, Marie ;  Université de Liège - ULiège > Département de Psychologie > Neuropsychologie
Willems, Sylvie  ;  Université de Liège - ULiège > Clinique psychologique et logopédique universitaire (CPLU)
Language :
English
Title :
Changes in a metacognitive heuristic in amnesia
Publication date :
15 September 2017
Event name :
6TH SCIENTIFIC MEETING OF THE FEDERATION OF THE EUROPEAN SOCIETIES OF NEUROPSYCHOLOGY
Event organizer :
FESN
Event place :
Maastricht, Netherlands
Event date :
du 13 au 15 septembre 2017
Audience :
International
Available on ORBi :
since 06 December 2017

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