Browsing Faculté des arts et des sciences – Département de psychologie - Travaux et publications by Author "Joubert, Sven"
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Alzheimer’s disease and memory strength : gradual decline of memory traces as a function of their strength
Langlois, Roxane; Benoit, Sophie; Rouleau, Isabelle; Vallet, Guillaume; Joubert, Sven; Barbeau, Emmanuel J. (2016-03-29)Objective : Episodic memory impairment is at the core of amnestic mild cognitive impair- ment (aMCI) and Alzheimer ’ s disease (AD). The origin of memory deficits may result either from an encoding deficit or from an accelerated decline of the ... -
Amyloid burden and white matter hyperintensities mediate age-related cognitive differences
Sévigny Dupont, Pénélope; Bocti, Christian; Joannette, Maude; Lavallée, Marie Maxime; Nikelski, Jim; Vallet, Guillaume; Chertkow, Howard; Joubert, Sven (Elsevier, 2019-08)This study examined the additive versus synergistic contribution of beta-amyloid (Aβ) and white matter hyperintensities (WMHs) across 7 cognitive domains in 104 cognitively normal older adults. It also measured the extent to which age-related differences ... -
L’apprentissage sans erreur : un principe efficace d’intervention dans la maladie d’Alzheimer et dans l’aphasie primaire progressive
Errorless learning in cognitive rehabilitation of Alzheimer’s disease and primary progressive aphasia
Joubert, Sven; Tannou, Thomas; Maquestiaux, François (John Libbey Eurotext, 2022)L’intervention cognitive demeure une des perspectives de prise en charge les plus utiles, dès la phase précoce, pour aider les patients atteints de trouble neurocognitif majeur à compenser leurs déficits cognitifs et maintenir leur indépendance ... -
Comprehension of concrete and abstract words in patients with selective anterior temporal lobe resection and in patients with selective amygdalo-hippocampectomy
Loiselle, Magalie; Rouleau, Isabelle; Nguyen, Dang Khoa; Dubeau, François; Macoir, Joël; Whatmough, Christine; Lepore, Franco; Joubert, Sven (Elsevier, 2012-01-08)The role of the anterior temporal lobe (ATL) in semantic memory is now firmly established. There is still controversy, however, regarding the specific role of this region in processing various types of concepts. There have been reports of patients ... -
Comprehension of concrete and abstract words in semantic variant primary progressive aphasia and Alzheimer’s disease: a behavioral and neuroimaging study
Joubert, Sven; Vallet, Guillaume; Montembeault, Maxime; Boukadi, Mariem; Wilson, Maximiliano A.; Laforce, Robert Jr.; Rouleau, Isabelle; Brambati, Simona Maria (2017-04-20)The aim of this study was to investigate the comprehension of concrete, abstract and abstract emotional words in semantic variant primary progressive aphasia (svPPA), Alzheimer’s disease (AD), and healthy elderly adults (HE) Three groups of participants ... -
Differential involvement of the anterior temporal lobes in famous people semantics
Chedid, Georges; Wilson, Maximiliano A.; Provost, Jean-Sébastien; Joubert, Sven; Rouleau, Isabelle; Brambati, Simona Maria (Frontiers media, 2016-08-30)The ability to recognize a famous person occurs through semantic memory. Previous neuroimaging studies have shown that the anterior temporal lobes (ATLs) are involved in the recognition of famous people. However, it is still a matter of debate ... -
Early-onset and late-onset Alzheimer’s disease are associated with distinct patterns of memory impairment
Memory impairment in EOAD and LOAD
Joubert, Sven; Gour, Natalina; Guedj, Eric; Didic, Mira; Guériot, Claude; Koric, Leila; Ranjeva, Jean-Philippe; Felician, Olivier; Guye, Maxime; Ceccaldi, Mathieu (2016-01-01)The goal of this study was to investigate the specific patterns of memory breakdown in patients suffering from early-onset Alzheimer’s disease (EOAD) and late-onset Alzheimer’s disease (LOAD). Twenty EOAD patients, twenty LOAD patients, twenty matched ... -
Education as a moderator of the relationship between episodic memory and amyloid load in normal aging
Joannette, Maude; Bocti, Christian; Sévigny Dupont, Pénélope; Lavallée, Marie Maxime; Nikelski, Jim; Vallet, Guillaume; Chertkow, Howard; Joubert, Sven (Oxford University Press, 2019-10-23)The current study explored whether education, a proxy of cognitive reserve, modifies the association between episodic memory (EM) performance and βeta-amyloid load (Aβ), a biomarker of Alzheimer’s disease, in a cohort of cognitively normal older ... -
L’évaluation de la mémoire rétrograde dans la population québécoise âgée: Le PUB-40 et le PUB-12
Langlois, Roxane; Joubert, Sven; Benoit, Sophie; Dostie, Valérie; Rouleau, Isabelle (2015-09)L’évaluation de la mémoire représente une partie importante du travail des neuropsychologues cliniciens œuvrant en gériatrie. En effet, au Canada, environ le tiers des aînés rapporte une plainte mnésique dont les causes sont variées. Selon l’étiologie, ... -
An examination of semantic impairment in amnestic MCI and AD : What can we learn from verbal fluency?
Chasles, Marie-Joëlle; Tremblay, A.; Escudier, F.; Lajeunesse, A.; Benoit, S.; Langlois, R.; Joubert, Sven; Rouleau, Isabelle (Oxford University Press, 2019-04-17)Introduction The Verbal Fluency Test (VF) is commonly used in neuropsychology. Some studies have demonstrated a marked impairment of semantic VF compared to phonemic VF in Alzheimer’s disease (AD). Since amnestic Mild Cognitive Impairment (aMCI) is ... -
An examination of semantic performance in mild cognitive impairment progressors and nonprogressors
Delage, Émilie; Rouleau, Isabelle; Akzam-Ouellette, Marc-Antoine; Roy-Côté, Frédérique; Joubert, Sven; Consortium for Early Identification of Alzheimer's disease-Quebec (American psychological association, 2024-02-15)Background. Mild Cognitive Impairment (MCI) is a risk factor for developing Alzheimer’s disease (AD), and about half of older people with MCI will progress to AD within the next five years. The aim of the present study was to compare the semantic ... -
The impact of time and repeated exposure on famous person knowledge in amnestic Mild cognitive impairment and Alzheimer’s disease
Benoit, Sophie; Rouleau, Isabelle; Langlois, Roxane; Dostie, Valérie; Kergoat, Marie-Jeanne; Joubert, Sven (2017)Objective: Famous people knowledge has been shown to be impaired early in Alzheimer’s disease (AD) and amnestic mild cognitive impairment (aMCI). However, the question of whether recently acquired knowledge is more impaired than remotely acquired ... -
Learning and vulnerability to phonological and semantic interference in normal aging : an experimental study
Chasles, Marie-Joëlle; Joubert, Sven; Cole, Jessica; Delage, Émilie; Rouleau, Isabelle (Taylor and Francis, 2022-12-07)This study compares semantic and phonological interference vulnerability across the full range of learning processes. Method: 43 controls aged 61–88 underwent a neuropsychological examination, French adaptation of the LASSI-L, and an experimental ... -
A MEG study of the neural substrates of semantic processing in semantic variant primary progressive aphasia
Pineault, Jessica; Jolicoeur, Pierre; Grimault, Stephan; Lacombe, Jacinthe; Brambati, Simona Maria; Bier, Nathalie; Chayer, Céline; Joubert, Sven (Taylor & Francis, 2019-07-01)Despite a well-documented pattern of semantic memory (SM) impairment, the patterns of brain activation during semantic processing in svPPA still remain poorly understood. The current study aimed to investigate the neural substrates of residual semantic ... -
Memory for public events in mild cognitive impairment and Alzheimer’s disease : the importance of rehearsal
Langlois, Roxane; Joubert, Sven; Benoit, Sophie; Dostie, Valérie; Rouleau, Isabelle (2016-02-22)Ribot’s law refers to the better preservation of remote memories compared with recent ones that presumably characterizes retrograde amnesia. Even if Ribot-type temporal gradient has been extensively studied in retrograde amnesia, particularly in ... -
Naming unique entities in the semantic variant of primary progressive aphasia and Alzheimer's disease : Towards a better understanding of the semantic impairment
Montembeault, Maxime; Brambati, Simona Maria; Joubert, Sven; Boukadi, Mariem; Chapleau, Marianne; Laforce, Robert Jr.; Wilson, Maximiliano A.; Macoir, Joël; Rouleau, Isabelle (Elsevier, 2016-12-07)While the semantic variant of primary progressive aphasia (svPPA) is characterized by a predominant semantic memory impairment, episodic memory impairments are the clinical hallmark of Alzheimer's disease (AD). However, AD patients also present with ... -
Neural changes associated with semantic processing in healthy aging despite intact behavioral performance
Lacombe, Jacinthe; Jolicoeur, Pierre; Grimault, Stephan; Pineault, Jessica; Joubert, Sven (2015-10-01)Semantic memory recruits an extensive neural network including the left inferior prefrontal cortex (IPC) and the left temporoparietal region, which are involved in semantic control processes, as well as the anterior temporal lobe region (ATL) which ... -
A qualitative impairment in face perception in Alzheimer’s disease : evidence from a reduced face inversion effect
face inversion effect in Alzheimer’s disease
Lavallée, Marie Maxime; Gandini, Delphine; Rouleau, Isabelle; Vallet, Guillaume; Joannette, Maude; Kergoat, Marie-Jeanne; Busigny, Thomas; Rossion, Bruno; Joubert, Sven (2016-04-12)Prevalent face recognition difficulties in Alzheimer’s disease (AD) have typically been attributed to the underlying episodic and semantic memory impairment. The aim of the current study was to determine if AD patients are also impaired at the perceptual ... -
The right temporal lobe variant of frontotemporal dementia: cognitive and neuroanatomical profile of three patients
Joubert, Sven; Felician, Olivier; Barbeau, Emmanuel; Ranjeva, Jean-Philippe; Christophe, Marion; Didic, Mira; Poncet, Michel; Ceccaldi, Mathieu (2006)The right temporal variant of frontotemporal lobar degeneration (Rtv-FTLD) is a focal degenerative condition affecting predominantly the right temporal lobe. The aim of this study was to further characterize the profile of cognitive impairment and the ... -
The role of the left anterior temporal lobe for unpredictable and complex mappings in word reading
Joyal, Marilyne; Brambati, Simona Maria; Laforce, Robert Jr.; Montembeault, Maxime; Boukadi, Mariem; Rouleau, Isabelle; Macoir, Joël; Joubert, Sven; Fecteau, Shirley; Wilson, Maximiliano A. (Frontiers media, 2017-04)The anterior temporal lobes (ATLs) have been consistently associated with semantic processing which, in turn, has a key role in reading aloud single words. This study aimed to investigate (1) the reading abilities in patients with the semantic variant ...