COGNITO - Inserm

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1. REACTION TIME The test measures simple reaction time using the dominant hand. When a stimulus (a clown) appears on the screen, the subject must press the space bar. The time recorded appears on the screen. After reading the instructions to the subject press the Start button to begin the 5 Practice trials. The subject should have his finger just above the space bar in preparation for each stimulus. The practice trial may be repeated as often as necessary if the subject has difficulty in understanding the instructions or begins to touch the bar before the stimulus has appeared. Trials are given with random inter-trial intervals. The reaction time is recorded to one hundredth of a second. A correct response will be between 100 and 500 milliseconds. If the subject responds before 100 milliseconds it is counted as an Anticipation error. If the subject responds between 500 and 2000 milliseconds it is considered a time Lapse problem (an very slow response - subject has probably been distracted from a correct response leading to a possible outlier score). If the subject does not respond at all after 2 seconds it is considered a failure (Over Time error). The test is terminated when the subject has recorded 12 valid responses. A maximum of 36 trials may be given. The interviewer should only start the real test when the instructions are understood In the Results file the following are recorded: - Validity of response for each trial - The mean of the 12 valid responses - Total number of trials by the subject - The number of Anticipation errors - The number of time Lapses - The number of Over Time errors 4
2. FAMILIARISATION TASK USE OF THE TESTING MENU Familiarisation This task is designed to familiarize the subject with the tactile screen. It is not scored or recorded in the results. The subject is asked to touch the stimulus (the clown from the reaction time test) and differentiate two stimuli (name of the clown). The subject then touches the clown at 3 different places on the screen. The testing menu Taking the cursor or touching the upper part of the screen will make a menu bar appear in green. From this menu the interviewer may activate/disactivate a voice which reads the instructions for each test, see the list of tests which have been started and completed, go to the next test or back to the last test, return to the <strong>COGNITO</strong> home page or exit from the battery. This menu accompanies every test in the battery. 5
Page 1 and 2: COGNITO 2012 Introduction Construct
Page 3: GETTING STARTED Home page Identific
Page 7 and 8: 4. AUDITORY ATTENTION The subject i
Page 9 and 10: 6. VISUAL AND AUDITORY ATTENTION In
Page 11 and 12: 8. ARTICULATION AND IMMEDIATE RECAL
Page 13 and 14: 10. VISUO-SPATIAL SPAN A screen is
Page 15 and 16: 12. PHONEME COMPREHENSION A word ap
Page 17 and 18: 14. MATRICES This test of visuospat
Page 19 and 20: 16. DRAWING ABSTRACT FIGURE The sub
Page 21 and 22: 18. NAME FACE ASSOCIATION The subje
Page 23 and 24: 20. VERBAL FLUENCY PHONEMIC CUE The
Page 25 and 26: 22. DESCRIPTION RECALL This test re
Page 27 and 28: 24. IMPLICIT MEMORY The subject is
Page 29 and 30: RESULTS On completion of the batter
Page 31: Artero S, Tierney MC, Touchon J, Ri

COGNITO - Inserm

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