Brandy Callahan is an Assistant Professor of Psychology at the University of Calgary and a Full Member of the Hotchkiss Brain Institute. She holds a Tier II Canada Research Chair in Adult Clinical Neuropsychology and is licensed to practice clinical neuropsychology in Alberta, Ontario and Quebec.

Dr. Brandy Callahan
Principal Investigator

Himanthri weerawardhena
Master's Student
Himanthri is completing her Master's in Clinical Psychology at the University of Calgary. Her research is focused on ADHD and personality. Previously, she received an undergraduate degree at the University of Calgary with a Bachelor of Science Honours in Psychology and a Bachelor of Science Honours in Zoology.
Baeleigh VanderZwaag
Research Assistant
Baeleigh completed her Bachelor of Science (Honours) in Psychology at the University of Calgary. She is currently coordinating and facilitating multiple studies within the Neurocognitive Disorders Lab as a research assistant.

Hawra Al-Khaz'Aly
Undergraduate Honours Student
Hawra began volunteering with the Neurocognitive Disoders Lab in the fall of 2019. She is currently in the fourth year of her BA in Psychology at the University of Calgary. Hawra is interested in research on dementia and is conducting her honours thesis in the lab.
Ben is currently a doctoral student in Clinical Psychology. Previously, Ben received his Bachelor of Arts in English and Psychology as well as his Master's of Science in Psychology, specializing in Behavioural Neuroscience, from Wilfrid Laurier University. His current research focuses on cognitive decline and mood disorders in the aging brain.
past members

vivian huang
Visiting Doctoral Student
Vivian joined the lab in the summer of 2018 as a visiting doctoral student from Ryerson University. She completed a 3-month research practicum and examining whether participants in mild cognitive impairment (MCI) research are representative of MCI patients seen at memory clinics.

MORGAN SCHAEFFER
Undergraduate Honours Student
Morgan completed an honours research project for his Psychology BSc in the Neurocognitive Disorders Lab in April 2019. His honours project explored executive functioning in individuals with ADHD. In the summer of 2018 he also received an Alberta Innovates Summer Studentship to investigate the differential diagnosis of Alzheimer's disease and dementia with Lewy bodies.

johnathan milner
Undergraduate Researcher
In the fourth year of his Bachelor of Science in Psychology at the University of Calgary, Johnathan conducted a research project with the Neurocogntive Disorders Lab. He was studying familial links between dementia and ADHD.

Anaëlle gonzalez
Undergraduate Researcher
Anaëlle was an undergraduate volunteer in the Neurocognitive Disorders Lab. A Psychology student at the University François Rabelais in Tours, France, she did an exchange at the University of Calgary for the 2017/2018 academic year.

barrett schultz
Undergraduate Researcher
Barrett investigated possible links between restless leg syndrome and dementia in adults diagnosed with ADHD. His aim was to show RLS as an emerging indicator of dementia. Further, Barrett examined cognitive abilities of adults with ADHD, RLS, or both.

azra sorathia
Undergraduate Researcher
Azra volunteered with the Neurocognitive Disorders Lab during the final year of her BA in Psychology at the University of Calgary. She is passionate about volunteering and gaining further research experience in the field of neuropsychology.

ALEXANDRA WALL
Clinical Research Coordinator
Alexandra was the Lab's clinical research coordinator from 2018 to 2020. She has a Master's degree in Neuroscience from the University of Calgary and a Bachelor of Science Honours in Psychology from Queen's University.