fMRI-Compatible Tablet Device

The laboratory has previously developed an fMRI-compatible tablet device that permits brain activity to be studied for realistic writing and drawing behaviour. Many of the tests used by neuropsychologists to evaluate impaired brain function are in "pencil and paper" format with writing and drawing used for communication. The tablet device enables brain mapping of these established neuropsychological tests, which are directly relevant to clinicians. As an example, the laboratory has conducted fMRI of the Trail Making Test, a very widely used pencil and paper test of frontal lobe function. More than 10 prototypes of the tablet have been fabricated for laboratories around the world, and the intellectual property has recently been patented, given that this device has commercial potential both in the neuroscience research market and in the clinical MRI market.

Ongoing work in this area involves use of the tablet to characterize the brain activity of several neuropsychological tests in the development of fMRI biomarkers for early detection of Alzheimer's disease. The work is currently funded by the Heart and Stroke Foundation of Canada.

To read more about our tablet, see Lab Equipment. If you are interested in potentially purchasing a tablet device, please contact

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Figure: the Graham Lab's fMRI-compatible tablet ready for fMRI, from Tam, Churchill, Strother and Graham (2011).

Recent Publications

Lin Z, Tam F, Churchill NW, Schweizer TA, Graham SJ. Sensors (Basel). 2021 Jan 8;21(2):401. doi: 10.3390/s21020401. PMID: 33430023