Reference : Relating pessimistic memory predictions to Alzheimer’s disease brain structure
Scientific journals : Article
Social & behavioral sciences, psychology : Neurosciences & behavior
http://hdl.handle.net/2268/202157
Relating pessimistic memory predictions to Alzheimer’s disease brain structure
English
Genon, Sarah mailto [Université de Liège > Département des sciences cliniques > Neuroimagerie des troubles de la mémoire et révalid. cogn. >]
Simon, Jessica mailto [Université de Liège > Département de Psychologie > Psychologie quantitative >]
Bahri, Mohamed Ali mailto [Université de Liège > Centre de Recherches du Cyclotron > Centre de Recherches du Cyclotron > >]
Collette, Fabienne mailto [Université de Liège > Département de Psychologie > Neuropsychologie >]
Souchay, Céline [> >]
Jaspar, Mathieu mailto [Université de Liège > Département de Psychologie > Ergonomie et intervention au travail >]
Bastin, Christine mailto [Université de Liège > Département des sciences cliniques > Neuroimagerie des troubles de la mémoire et révalid. cogn. >]
SALMON, Eric mailto [Centre Hospitalier Universitaire de Liège - CHU > > Service de neurologie >]
Dec-2016
Cortex: A Journal Devoted to the Study of the Nervous System and Behavior
Masson
85
151-164
Yes (verified by ORBi)
International
0010-9452
1973-8102
Milano
Italy
[en] Patients with Alzheimer’s disease (AD) show impairment of episodic memory and related metacognitive processes. The present study examined subjective metacognitive judgments preceding objective memory retrieval and investigated the neural correlates of pessimistic predictions for successfully retrieved memories in AD patients.
AD patients and healthy older participants provided predictive judgements on their recognition performance before retrieval of famous (semantic) and recently learned (episodic) names. Correlations between grey matter volume (GMV) in T1 images and behavioural scores were examined with multivariate (PLS) and univariate (GLM) analyses in AD patients.
AD patients showed a significant proportion of successful name recognition preceded by pessimistic prediction (Prediction_low_hits) in episodic memory. PLS revealed that behavioural pattern in AD patients was related with a mainly right lateralized pattern of GMV decrease including medial temporal lobe and posterior cingulate cortex, but also right ventrolateral prefrontal cortex (VLPFC). GLM further confirmed that pessimistic prediction negatively correlated with GMV in VLPFC.
Thus, impaired monitoring processes (possibly influenced by inaccurate beliefs) allowing inferences about one’s own memory performance are primarily related to decrease GMV in VLPFC in AD patients.
http://hdl.handle.net/2268/202157

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