Lynn Hasher

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Karen Campbell

4th year PhD Candidate

Department of Psychology
University of Toronto
100 St. George Street
Room 600
Toronto, ON  M5S 3G3

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My research focuses on age differences in attentional control and how these differences influence subsequent memory performance. I am particularly interested in how older adults' lessened ability to inhibit irrelevant distraction, from both the environment and internally generated thoughts, may lead them to form broad associations across events occurring in close spatial and temporal contiguity. Older adults, and others with compromised inhibitory abilities, may have a broader sense of "the now", in that boundaries between distinct events may become more blurred as a result of poor inhibitory control. While these broad associations may typically lead to interference at retrieval and thus, poorer memory performance, I am particularly interested in situations in which older adults' broader associative knowledge may give them an advantage over younger adults (e.g., during creative problem solving).

The methods I use to address these questions include: behavioural measures, eye tracking, and fMRI.

Please feel free to email me if you would like to learn more about my research or if you have any questions about Toronto and the university. Or you could visit my website here:




Campbell, K. L., Grady, C. L., Ng, C., & Hasher, L. (in press). Age differences in the frontoparietal  

            cognitive control network: Implications for distractibility. Neuropsychologia.


Campbell, K. L., Zimerman, S., Healey, K. M., Lee, M. M. S., & Hasher, L. (2012). Age differences in visual statistical learning. Psychology and Aging.


Healey, M. K., Campbell, K. L., Hasher, L., & Ossher, L. (in press). Direct evidence for the role of inhibition in resolving interference. Psychological Science.


Campbell, K. L., Hasher, L., & Thomas, R. C. (2010). Hyper-binding: A unique age effect. Psychological Science, 21, 399-405.


Campbell, K. L., Al-Aidroos, N., Fatt, R., Pratt, J., & Hasher, L. (2009). The effects of multisensory targets on saccadic trajectory deviations: Eliminating age differences. Experimental Brain Research, 201, 385-392.


Campbell, K. L., & Ryan, J. D. (2009). The effects of practice and external support on older adults' control of reflexive eye movements. Aging, Neuropsychology, and Cognition, 16, 745-763. 


Campbell, K. L., Al-Aidroos, N., Pratt, J., & Hasher, L. (2009). Repelling the young and attracting the old:Examining age-related differences in saccade trajectory deviations. Psychology and Aging, 24, 163-168.


Healey, M. K., Campbell, K. L., & Hasher, L. (2008). Cognitive aging and increased distractibility: Costs and potential benefits. In W. S. Sossin, J.-C. Lacaille, V. F. Castellucci, & S. Belleville (Eds.). Progress in Brain Research, Vol. 169. Elsevier, Amsterdam, pp. 353-363.


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