Karen Li completed her doctoral studies in 1996 at University of Toronto, followed by post-doctoral fellowships at Duke University in North Carolina and the Max Planck Institute for Lifespan Development in Berlin, Germany. She joined the Psychology department at Concordia University in 2000 and is presently a Full Professor of Psychology, with a research focus on cognitive aging, and the role of executive functions in multitasking, gait, and posture. She directs the Laboratory for Adult Development and Cognitive Aging, and has received funding from the Canadian Institutes of Health Research, Canadian Foundation for Innovation, Natural Sciences and Engineering Research Council, and Fonds de recherche du Québec. She is a member of the PERFORM Centre for preventive health research, the Centre for Research in Human Development, and the engAGE Centre for Studies of Aging.
Sessions in which Karen Li PhD participates
Wednesday 12 May, 2021
Safe mobility is vital to the functional independence of older adults. Executive functions such as working memory updating and dividing attention play an increasingly important role in supporting mobility in old age. This talk describes recent studies that examine the influence of cognitive and sensory challenges to complex motor performance. Featured are recent cognitive training and exercise intervention studies designed to target executive functions to improve mobility and cognition in old...
Sessions in which Karen Li PhD attends
Not scheduled
The effects of physical inactivity among older adults have been established as a "public health crisis" because of their heightened risk of cardiovascular, autoimmune, neurocognitive, and mental health problems (Wu, 2020). While physical distancing is essential in the fight against COVID-19, long-term self-isolation protocols established to protect the elderly population have created new health risks, as older adults are now left more socially isolated and inactive than before. Making an inve...
Monday 10 May, 2021
The majority of immune development and the ability to ‘tolerate’ food proteins occurs after birth, during the period when most infants’ are consuming human milk. The omega-3 long chain polyunsaturated fatty acid, docosahexaenoic acid (DHA), is required for immune function but Canadian have one of the lowest contents of DHA in their breast milk in the world. The content of this fatty acid is highly variable in breast milk and depends primarily on dietary intake. Using information from the ...
In this talk, we will present our recent developments in the context of Personalized functional Near Infra-Red Spectroscopy (fNIRS) investigations, which consist in optimizing placement of fNIRS sources and detectors on the head of the participant in order to maximize fNIRS sensitivity to some targeted brain regions, while allowing accurate local 3D reconstructions of fluctuations of oxy-hemoglobin and deoxy-hemoglobin along the cortical surface. Personalized fNIRS investigations could be ...
Near-Infrared Spectroscopy (NIRS) and diffuse correlation spectroscopy (DCS) are two established techniques which allow monitoring brain health non-invasively. With the foundation of our seminal NIRS-DCS work on neonates, we are developing novel devices and approaches to better quantify cerebral blood oxygenation, cerebral blood flow and oxygen metabolism in the clinical setting both in children and adults. In particular, in the last few years we have made substantial progress on D...
Tuesday 11 May, 2021
Circadian clock genes are widely expressed in mammalian brain. Despite considerable knowledge about the role of these genes in the generation of circadian rhythms in the suprachiasmatic nucleus, the master circadian clock, insight into brain-region specific function of these genes limited. Studies in our laboratory investigate the role of core clock gene, Bmal1 and Per2 in the control of behaviors governed by the striatum, a forebrain structure critical in in motor control, reward processi...
Sleep and circadian disturbances are common and represent risk factors for the development of some of the most prevalent and challenging chronic illnesses, such as cardio-metabolic and neurodegenerative disorders.Circadian rhythms are ubiquitous in all organisms. These rhythms, maintained through a complex molecular transcription-translation feedback loop are present throughout the brain and body, and play a key role in the regulation of nearly all physiological and behavioral processes. S...
Wednesday 12 May, 2021
Regional brain function is determined by its local structure and connectivity. I will present work from our lab that strives to quantify connectivity for applications in healthy development and understanding the impact of disease - focusing on understanding normative cerebellar connectivity and quantifying the impact of stroke. I will also touch on some recent work linking interhemispheric functional connectivity to bimanual motor control in older adults.
With aging, there are declines in sensorimotor functions such as fine motor control, gait and balance. Moreover, the largest age differences in brain structure are observed in the motor and somatosensory cortices. A key question of interest is why some individuals are more resilient than others to these functional declines. I will describe my findings showing that, in some cases, individual differences in sensorimotor system structure and function are associated with motor performance meas...
The following posters will be presented:10:45am-10:50amMeasurement of Centre of Pressure using the Wii Balance Board in Older Adults with Simulated Visual ImpairmentPresented by: Berkley Peterson10:50am-10:55amDifference in symptom burden and distress among cancer patients undergoing antineoplastic treatmentPresented by: Elizabeth Smyth10:55am-11:00amInfluence of Auditory Load and Beat Perception in Rhythmic A...
Disorders of gait and cognition are central to many age related conditions and diseases. While there are medications available to treat some of these disorders, they have significant side effects and limited effectiveness. A better understanding of the inter-relationship between motor and cognitive function in aging may help guide the development of new therapeutic approaches for conditions such as frailty, mobility disability and dementia. In this talk, I will discuss non-pharmacological ...