2013 Fiscal Year Final Research Report
Predicting mental health disorders based on the time intervals between strokes while writing numbers
| Project/Area Number |
24650431
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Applied health science
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| Research Institution | Toyo University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | メンタルヘルス / 予兆把握 / 筆跡 / デジタルペン |
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| Research Abstract |
We investigated whether the Uchida-Kraepelin test could serve as a method for predicting mental health disorders using the handwriting which was acquired using a digital pen. In total, 166 students were recruited for a follow-up cohort study conducted over 3 times (once per year in early April). The participants completed the Uchida-Kraepelin test and a questionnaire GHQ30. We analyzed the time intervals between the first and second stroke of a number (4, 5, and 7; mean time interval: t1) and those between the completion of writing a number and initiation of writing the next number (mean time interval: t2). A correlation was observed between the t2/t1 ratio and social dysfunction scores on GHQ30 (p < 0.05). Furthermore, the dropout rate of the high-risk group (the group with t2/t1 > 11) was ten times higher than that of the low-risk group (the group with t2/t1 < 11; p < 0.01). These results suggest that it may be possible to predict mental health disorders using the t2/t1 ratio.
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