COGNITO - Inserm

11. MATCHING
GEOMETRIC FIGURES
This test requires the subject to
discriminate form and line
orientation by matching a sample
complex figure on the left side of
the screen to one of 6 on the right
side. The position of the correct
match changes across trials.
Distractor figures are designed to
detect visuospatial field neglect
and difficulties with line
orientation. The test is timed.
The subject has 20 seconds to
respond. There is one practice
trial.
8 trials are given. A “Regret” key
permits the interviewer to alter
the initial response if the subject
declares having made an error. In
this case the time count
continues.
The following appears in the
Results file :
- Response time for each
trial
- The figure touched (the
figures are numbered for
this purpose)
- Occurrence of a
“Regret” or autocorrection
- Total correct responses
- Total inversions
- Total “Regrets”
- Field neglect
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