Marie-Julie Potvin

• Doctor of Psychology
• Professor (Full) at University of Quebec in Montreal

Objective To accurately assess prospective memory (PM) functioning in patients who sustained a traumatic brain injury (TBI), it is important to use both subjective (questionnaires) and objective (tests) measures. However, which factors have the most significant effect on each PM measure remains unknown. This observational study aims to verify wheth...

Traumatic brain injury (TBI) survivors often suffer from agitated behaviors and will most likely receive pharmacological treatments. Choosing an optimal and safe treatment that will not interfere with neurological recovery remains controversial. By interfering with dopaminergic circuits, antipsychotics may impede processes important to cognitive re...

Objective: Prospective memory (PM) is the ability to remember to produce an action at a specific moment in the future signaled by the occurrence of a specific event (event-based [EB] condition), a time or a time interval (time-based [TB] condition). Detection of the appropriate moment corresponds to the prospective component, while production of th...

Objective Following a traumatic brain injury (TBI), the majority of patients report difficulties with prospective memory (PM). However, there is not always a significant relationship between subjective and objective PM measures. Several variables may influence the degree of severity of perceived difficulties, including the severity of the injury an...

Objective Prospective memory (PM) is the ability to remember to produce an action at a specific moment in the future signaled by the occurrence of a specific event (EB condition), a time or a time interval (TB condition). Detection of the appropriate moment corresponds to the prospective component (PC), while production of the appropriate action co...

Objective: Cognitive recovery after a traumatic brain injury (TBI) may be negatively affected by a prior alcohol use disorder (AUD). This study aims to compare the cognitive recovery of patients who had comorbid TBI and AUD relative to TBI alone and investigate the influence of blood alcohol level (BAL) at hospital admission on this recovery. Met...

Although several studies have documented the chronic phase of traumatic brain injury (TBI), few verified the nature and severity of cognitive impairments during the acute phase. Among the studies carried out during the acute phase, instrumental functions were rarely examined compared to attention, memory, and executive functions. This study aimed t...

Objective To determine how results on the EXACT (EXAmen Cognitif abrégé en Traumatologie), a new test specifically designed to briefly assess global cognitive functioning during the acute phase of traumatic brain injury (TBI), can predict long-term functional outcome compared to length of post-traumatic amnesia (PTA), a well-established predictor....

Prospective memory (PM) problems in aging and, to a greater extent, in mild cognitive impairment (MCI), compromise functional independence. This study examined the effectiveness of a cognitive training program based on visual imagery to improve PM among older adults with and without MCI. Participants were older adults, 24 with MCI and 24 cognitivel...

Les troubles cognitifs constituent l'un des principaux symptômes de la dépression (trouble dépressif majeur [major depressive disorder ou MDD]) et font partie des critères diagnostiques du DSM-5. Ils affectent surtout l'attention, la vitesse de traitement de l'information, la mémoire, les fonc-tions exécutives et la régulation du comportement et de...

The objective of this study was to explore the exact nature, extent, and cognitive correlates of prospective memory deficits in mild cognitive impairment (MCI) by using the Ecological Test of Prospective Memory (TEMP). Twenty-five MCI participants and 25 healthy older adults (HOA) performed the TEMP, the Envelope Task, the Comprehensive Assessment...

Objective : The role of the clinical neuropsychologist in tertiary trauma center hospitals is to quickly assess the global cognitive functioning of patients who have sustained a traumatic brain injury (TBI) in order to determine their orientation at the time of discharge. However, the few global cognitive instruments available for this clinical pur...

Objective The aim of this systematic review was to assess the efficacy and safety of pharmacological agents in the management of agitated behaviours following traumatic brain injury (TBI). Methods We performed a search strategy in PubMed, OvidMEDLINE, Embase, CINAHL, PsycINFO, Cochrane Library, Google Scholar, Directory of Open Access Journals, LI...

Objective: Prospective memory (PM) is the ability to remember to perform an intention at the appropriate time in the future. It is of primary importance for daily living, and its disruption may impact functional autonomy. To date, few studies have examined PM during the acute phase of mild traumatic brain injury (mTBI), despite the high prevalence...

Introduction We recently demonstrated that the sleep-wake cycle is severely altered in the acute stage of moderate to severe traumatic brain injuries (TBI). In general, these patients have short sleep and wake bouts dispersed over the 24 h. This study aimed to explore whether early markers of TBI severity predict acute sleep-wake cycle disturbances...

Background: Traumatic brain injury (TBI) is a worldwide leading cause of mortality and disability. Among TBI complications, agitation is a frequent behavioural problem. Agitation causes potential harm to patients and caregivers, interferes with treatments, leads to unnecessary chemical and physical restraints, increases hospital length of stay, de...

Background: Sleep-wake disturbances are frequently reported following traumatic brain injury (TBI), but they remain poorly documented in the acute stage of injury. Little is known about their origin and evolution. Case presentation: This study presents the case of a patient in the acute phase of a severe TBI. The patient was injured at work when...

Objective: Posttraumatic amnesia is superior to the initial Glasgow Coma Scale score for predicting traumatic brain injury recovery, but it takes days/weeks to assess. Here, we examined whether return of visual fixation-a potential marker of higher cognitive function-within 24 hours of ICU admission could be used as an early predictor of traumatic...

Résumé Les déficits de mémoire prospective (MP) font partie des principales plaintes rapportées par des individus présentant un trouble cognitif léger (Mild cognitive impairment [MCI]). Bien que peu d’études s’y soient intéressées, on reconnaît généralement que les troubles de la MP pourraient constituer un marqueur précoce permettant d’identifier...

Despite the frequency of prospective memory (PM) problems in the traumatic brain injury (TBI) population, there are only a few rehabilitation programmes that have been specifically designed to address this issue, other than those using external compensatory strategies. In the present study, a PM rehabilitation programme based on visual imagery tech...

Prospective memory (PM) impairments are often observed after traumatic brain injury (TBI). Although PM is crucial for daily functioning, few sensitive, valid and ecological clinical tests are available. To address these concerns, the authors developed a PM task, the TEMP, using naturalistic stimuli, in which each PM phase and component is evaluated...

Few studies have examined the influence of aging on motor skill learning (MSL) tasks involving different skills and conditions. Two tasks, each including two different conditions (repeated and nonrepeated), were used: (a) the Mirror Tracing task, requiring the inhibition of an overlearned response and the learning of a new visuomotor association, a...