The clock-drawing test is used for screening for
cognitive impairment and dementia and as a measure
of spatial dysfunction and neglect. It was originally
used to assess visuo-constructive abilities but we know
that abnormal clock drawing occurs in other cognitive
impairments. Doing the test requires verbal understanding,
memory and spatially coded knowledge in
addition to constructive skills [1]. Education, age and
mood can influence the test results, with subjects of
low education, advanced age and depression performing
more poorly [2 - 4].