This study aims at exploring patients' ability to monitor their own memory performance depending on their primary deficit and the type of memory involved in the criterion task. The goal is to evaluate if semantic dementia (SD) and Alzheimer's disease (AD) differently affect patients' awareness of their memory abilities.
Patients who will give their informed non-opposition will be included. Participants will undergo 6 metacognitive tasks in which they will be tested on newly learnt information (i.e., episodic memory) or prior knowledge (i.e., semantic memory) and asked to evaluate their performance either prior or after the test. Correlation between their evaluation and their actual performance will be measured. Performance and correlations will be compared across groups.
Study Type
OBSERVATIONAL
Enrollment
40
Test on episodic or semantic memory
CHU Angers
Angers, France
CHU Bordeaux
Bordeaux, France
Hôpital Neurologique de Lyon
Bron, France
Hôpitaux Civils Colmar
Colmar, France
Metacognitive bias on the episodic predictive judgment task
Metacognitive bias will be assessed by subtracting the mean proportion of the metacognitive judgments to the actual memory performance. Bias will range from -1 (underestimation) to 1 (overestimation).
Time frame: End of study : around May 2022
Metacognitive accuracy on the episodic predictive judgment task
Metacognitive accuracy will be assessed by calculating a gamma correlation for each participant. Metacognition accuracy allows to evaluate people's ability to discriminate correct responses from incorrect responses. Gamma correlation range from -1 to 1.
Time frame: End of study : around May 2022
Metacognitive bias on the semantic predictive judgment task
Metacognitive bias will be assessed by subtracting the mean proportion of the metacognitive judgments to the actual memory performance. Bias will range from -1 (underestimation) to 1 (overestimation).
Time frame: End of study : around May 2022
Metacognitive accuracy on the semantic predictive judgment task
Metacognitive accuracy will be assessed by calculating a gamma correlation for each participant. Metacognition accuracy allows to evaluate people's ability to discriminate correct responses from incorrect responses. Gamma correlation range from -1 to 1.
Time frame: End of study : around May 2022
Metacognitive bias on episodic global judgment task
Metacognitive bias will be assessed by subtracting the mean proportion of the metacognitive judgments to the actual memory performance. Bias will range from -1 (underestimation) to 1 (overestimation).
Time frame: End of study : around May 2022
Metacognitive bias on semantic global judgment task
Metacognitive bias will be assessed by subtracting the mean proportion of the metacognitive judgments to the actual memory performance. Bias will range from -1 (underestimation) to 1 (overestimation).
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Chu Grenoble Alpes
Grenoble, France
CHU Rennes
Rennes, France
CHU Vaudois
Lausanne, Switzerland
Time frame: End of study : around May 2022
Metacognitive bias on the episodic retrospective judgment task
Metacognitive bias will be assessed by subtracting the mean proportion of the metacognitive judgments to the actual memory performance. Bias will range from -1 (underestimation) to 1 (overestimation).
Time frame: End of study : around May 2022
Metacognitive accuracy on the episodic retrospective judgment task
Metacognitive accuracy will be assessed by calculating a gamma correlation for each participant. Metacognition accuracy allows to evaluate people's ability to discriminate correct responses from incorrect responses. Gamma correlation range from -1 to 1.
Time frame: End of study : around May 2022
Metacognitive bias on the semantic retrospective judgment task
Metacognitive bias will be assessed by subtracting the mean proportion of the metacognitive judgments to the actual memory performance. Bias will range from -1 (underestimation) to 1 (overestimation).
Time frame: End of study : around May 2022
Metacognitive accuracy on the semantic retrospective judgment task
Metacognitive accuracy will be assessed by calculating a gamma correlation for each participant. Metacognition accuracy allows to evaluate people's ability to discriminate correct responses from incorrect responses. Gamma correlation range from -1 to 1.
Time frame: End of study : around May 2022