Ayan K. Dey

Ayan K. Dey
University of Toronto | U of T · Department of Psychiatry

MD PhD
Psychiatry Resident at the University of Toronto.

About

23
Publications
3,105
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119
Citations
Introduction
Recent graduate of U of T's MD.PhD Program. Psychiatry Resident at the University of Toronto. Interests in acquired brain injury recovery, neuropsychiatry, sleep disorders, cognition and quality improvement.

Publications

Publications (23)
Article
Full-text available
Background Screening for vascular risk factors is commonly assessed through self-report, despite reports of low sensitivity using this approach in healthy populations. The validity of self-reported vascular risk factors in a population at high risk for stroke has yet to be explored. Aims This study investigated the validity of self-reported cardio...
Article
Full-text available
Background: Cerebral small vessel disease (CSVD) is a highly prevalent condition associated with diffuse ischemic damage and cognitive dysfunction particularly in executive function and attention. Functional brain imaging studies can reveal mechanisms of cognitive impairment in CSVD, although findings are mixed. Methods: A systematic review integra...
Article
Full-text available
Objective: Traumatic brain injury (TBI) is associated with impairments in processing speed as well as higher-level cognitive functions that depend on distributed neural networks, such as regulating and sustaining attention. Although exogenous alerting cues have been shown to support patients in sustaining attentive, goal-directed behavior, the neu...
Article
Some degree of ischemic injury to white matter tracts occurs naturally with age and is visible on magnetic resonance imaging as focal or confluent white matter hyperintensities (WMHs). Its relationship to cognition, however, remains unclear. To explore this, community-dwelling adults between the ages 55-80 years old completed structural imaging, ne...
Article
Full-text available
Objective The objective of this study was to investigate the impact and prevalence of sleep-wake disturbances among adult patients admitted for inpatient acquired brain injury rehabilitation. Method This was a retrospective cohort study involving all adults admitted for inpatient ABI neurocognitive rehabilitation at UHN-Toronto Rehabilitation Inst...
Article
Postconcussive symptoms following mild traumatic brain injury (mTBI)/concussion are common, disabling, and challenging to manage. Patients can experience a range of symptoms (e.g., mood disturbance, headaches, insomnia, vestibular symptoms, and cognitive dysfunction), and neuropsychiatric management relies heavily on nonpharmacological and multidis...
Article
Full-text available
Medication reconciliation in ambulatory care settings helps prevent adverse drug events. Patient involvement in the process is crucial, as clinicians must verify the reported medication history with other sources such as home medication lists or brown-bagged home medications provided by patients. However, only 47.8% of brain injury and stroke adult...
Preprint
Full-text available
Some degree of ischemic injury to white matter tracts occurs naturally with age and is visible on magnetic resonance imaging as focal or confluent white matter hyperintensities (WMHs). Its relationship to cognition, however, remains unclear. To explore this, community-dwelling adults between the ages 55-80 years old completed structural imaging, ne...
Article
Full-text available
Purpose: Cancer screening may not be appropriate for some older people. We compare the likelihood of screening for colorectal, breast, and cervical cancers in older people with versus without cognitive impairment or dementia. Method: Systematic search of MEDLINE, Embase, and PsycINFO (to March 9, 2018) for articles reporting screening for colon, br...
Data
Supplementary_Figures_799446 – Supplemental material for Rates of Screening for Breast, Colorectal, and Cervical Cancers in Older People With Cognitive Impairment or Dementia
Data
Supplementary_Tables_799446 – Supplemental material for Rates of Screening for Breast, Colorectal, and Cervical Cancers in Older People With Cognitive Impairment or Dementia
Article
Full-text available
Background: Combined MD/PhD programs provide a structured path for physician-scientist training, but assessment of their success within Canada is limited by a lack of quantitative data. We collected outcomes data for graduates of Canadian MD/PhD programs. Methods: We developed and implemented a Web-based survey consisting of 41 questions designed...
Article
Full-text available
The continued decline in medical trainees entering the workforce as clinician-scientists has elevated the need to engage medical students in research. While past studies have shown early exposure to generate interest among medical students for research and academic careers, financial constraints have limited the number of such formal research train...
Article
Full-text available
The 2015 Annual General Meeting of The Canadian Society of Clinician Investigators (CSCI) and Clinician Investigator Trainee Association of Canada/Association des Cliniciens-Chercheurs en Formation du Canada (CITAC/ACCFC) was held in Toronto November 23-25, 2015, in conjunction with The University of Toronto Clinician Investigator Program Research...
Research
Full-text available
Neuroserpin is an axonally secreted serine protease inhibitor (serpin) expressed within the nervous system. Although best known for its preferential inhibition of tissue plasminogen activator (tPA) – a commonly used clotting busting agent used by clinicians since 1996 – relatively little is known about what elements of neuroserpin are responsible i...
Research
Full-text available
Patient assessment following acquired brain injury is critical for rehabilitation, however the use of traditional assessment tools breaks down when therapists are confronted with non-communicative patients (e.g. global aphasia, and vegetative state). Thus there is a need for reliable alternatives to current neuropsychological tests which rely on be...
Article
Full-text available
The Canadian Society of Clinician Investigators (CSCI) and Clinical Investigator Trainee Association of Canada/Association des cliniciens-chercheurs en formation du Canada (CITAC/ACCFC) annual general meeting (AGM) was held in Toronto during November 21-24, 2015 for the first time in conjunction with the University of Toronto Clinician-Investigator...
Poster
Full-text available
To use simultaneous electroencephalography and functional magnetic resonance imaging (EEG-fMRI) paired with neuropsychological testing to better characterize changes in brain functional activity associated with Cerebral Cerebral Small Vessel Disease (CSVD) and how such individuals may benefit from goal management training (GMT). CSVD is the largest...

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Projects

Projects (2)
Project
Rationale: Aging is associated with both structural and functional changes along with decline in certain cognitive domains. Reduced white matter integrity is a common age-related structural change which is accelerated in those cerebral small vessel disease (CSVD), a disease characterized by white matter and subcortical lesions. To what extent these lesions contribute to age-related cognitive decline is unclear as there is considerable heterogeneity in the cognitive abilities of those with similar amounts of vascular lesion burden. Research Aims: Using a combination of neuropsychological testing, structural imaging and simultaneously recorded functional MRI and EEG, task-dependent and task-independent differences between healthy older adults and those with CSVD are investigated. This study aims to advance existing understanding of mechanisms contributing to vascular cognitive impairment and compensation.