Dr. Rosanna Olsen

Dr. Olsen is the passionate LEADER and DIRECTOR of the Olsen Lab. She is a Scientist at the Rotman Research Institute (RRI) at Baycrest and an Assistant Professor at the University of Toronto.


She received her PhD in Psychology with concentration in cognitive neuroscience from Stanford University in California. She then completed her postdoctoral fellowship at Rotman Research Institute at Baycrest.


Shireen is a graduate student in the Department of Psychology at the University of Toronto. She is co-supervised by Dr. Olsen and Dr. Cheryl Grady.

She completed her Bachelor's of Science at the University of Toronto, with concentrations in Psychology. She has volunteered at the Olsen lab since 2016. 

Her current project investigates the effect of hyperbinding in older adults. She aims to find out if memory impairment in the elderly is partially due to inappropriate allocation of attention and memory to irrelevant details. 

Shireen Parimoo

Kirk Geier

Kirk is a graduate student in the Department of Psychology at the University of Toronto.


He has completed his BSc in Biomedical Science with concentration in neuroscience from King’s College London. He then went to complete his Master’s in Space Physiology and Health. His experience ranges from working with C.elegans and rats, to working in a diagnostic setting, to conducting neuroimaging and eye-tracking experiments.

Negar Mazloum

Negar is a graduate student in the Department of Psychology at the University of Toronto. She is co-supervised by Dr. Rosanna Olsen and Dr. Jennifer Ryan.


She completed her Honours Bachelor of Science in Psychology at York University. Some of her experiences in cognitive neuroscience include delivering research based interventions to patients with dementia in order to investigate effects on memory, as well as exploring the neuroscience of learning and memory in younger and older adults.


She is interested in examining the structural brain changes that occur in older adults who are exhibiting early signs of cognitive decline, as well as identifying specific regions of the brain that are affected by neurological impairments.

Nick Hoang

Nick is a graduate student, co-supervised by Drs. Rosanna Olsen and Bradley Buchsbaum, in the Department of Psychology at the University of Toronto. 

His research assesses pattern completion and pattern separation as a function of eye movements, brain activations, healthy aging, and hippocampal amnesia. 


In 2016 and under the supervision of Drs. Shayna Rosenbaum and Morris Moscovitch, he assessed pattern separation in the auditory and visual modalities of healthy older adults and amnesic patients; the findings were presented as a nano-symposium talk at Neuroscience 2017 in Washington, D.C. 


In 2018, he conducted a fMRI study under Dr. Morris Moscovitch to assess gist and detailed mnemonic discrimination of highly similar scenes along the hippocampal longitudinal axis. The behavioural and neuroimaging results were presented as posters in Neuroscience 2019 in Chicago and Cognitive Neuroscience Society 2020 in Boston, respectively.


For access to his online CV, please click on the link below:


Nathanael Shing

Nathanael is a research assistant and the current lab manager in the Olsen lab.


He obtained his BScH in Life Science with a Specialisation in Drug Development and Human Toxicology from Queen's University. He then went on to complete his Master's in Advanced Neuroimaging from University College London, London, UK.


His experience in neuroscience research ranges from studying neural oscillations in genetically engineered mice to investigating cell-free nucleic acids as a biomarker for Alzheimer's Disease.

For recent publications, visit:

He is currently involved in a collaborative project studying brain changes in aging via imaging, eye-tracking, and behavioral measures at the Rotman Research Institute.


Linke Yu

Research Assistant

Fall 2018 to Present

Anika Choi

Research Assistant

Fall 2018 to Present

Zenan Tang


Summer 2019 - Present

Wei Shao


Fall 2019 to Present

Yesh Rai

Yesh Rai

Summer 2016

Rachelle Martell

Anastasia Liu

Summer 2016

Claire Lung

Claire Lung

Fall 2016 to Spring 2017

Claire Lung

Rachelle Martell

Fall 2016 to Spring 2017

Mikaeel Valli

Lab Manager: Fall 2016 - Summer 2018

Graduate Student, UofT

Shamanth Chedde

Fall 2017

Claire Lung

Verena Mikhail

Winter 2017 to Fall 2018

Nahid Iseyas


Fall 2017-June 2019

Claire Lung

Keisha Joseph

Winter 2018

Lauren Iafrate

Research Assistant

Summer 2019

Leanne Mendoza

Leanne Mendoza

Research Assistant: Summer 2016 to Fall 2019

Graduate Student, UCL

Jessica Robin

Postdoctoral Fellow: 2016-2019

Scientist at Winterlight Labs

Aasritha Thotakura

Summer 2017

Kristine Jeganathan

Summer 2017

Yumna Farooq 

Winter 2017 to Summer 2017

© 2016 Olsen Lab