Recognizing someone's name but forgetting how you met them is all in your head
Thursday, October 25, 2007
New research from The University of Western Ontario suggests the sometimes
eerie feeling experience when recognizing someone, yet failing to remember how
or why, reveals important insight into how memory is wired in the human
brain.
In research published recently in one of the world's most-cited
multidisciplinary scientific publications, “Proceedings of the National Academy
of Sciences USA," Western psychology graduate student Ben Bowles and psychology
professor Stefan Köhler have found that this feeling of familiarity during
recognition relies on a distinct brain mechanism and does not simply reflect a
weak form of memory.
“Recognition based on familiarity can be contrasted with recognition when
we spontaneously conjure up details about the episode in which we encountered
the person before, such as where we met the person or when it happened,"
explains Köhler.
The authors report that a rare form of brain surgery that can be highly
effective for treatment of epilepsy can selectively impair the ability to assess
familiarity.
“It is counterintuitive but makes a lot of sense from a theoretical
perspective that familiarity can be affected, while the ability to recollect
episodic detail is completely spared," adds Köhler.
The research is based on Bowles' Master's thesis and was supported by a
grant from the Canadian Institutes of Health Research (CIHR) to Dr. Köhler. It
has important implications for understanding memory deficits in neurology,
including in Alzheimer's disease.
The study was conducted in collaboration with researchers at the London
Health Sciences Centre, McGill University, and at the University of California.
For more information, please contact Stefan Köhler at 519-852-2519 (cell),
519-661-2111, ext. 86364 (office), 519-661-2111, ext. 86299 (lab) or email at stefank@uwo.ca
MEDIA CONTACT: Jeff Renaud, Media Relations Officer,
519-661-2111, ext. 85165
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