The Trail Making Test is a neuropsychometric test consisting of two parts, A and B, designed to estimate a subject’s visual attention and task switching ability.*
For healthcare professional use only.
Part A tests cognitive processing speed. The subject is asked to consecutively connect the numerical points accurately, in ascending order, from 1 to 25 as quickly as possible, i.e., 1, 2, 3 etc.
Part B tests executive functioning. The subject is asked to consecutively connect both numerical and alphabetical points accurately, in ascending order as quickly as possible. i.e., 1, A, 2, B, 3, C, etc. The purpose of the test is to ascertain an overall time for completing both parts and gain information about:
• Visual search speed
• Scanning
• Speed of processing
• Mental flexibility
• Executive functioning
* Tombaugh, T.N.T.N (2004). “Trail Making test A and B: Normative Data Stratified by Age and Education”. Archives of Clinical Neuropsychology : The Official Journal of the National Academy of Neuropsychologists 19 (2): 203–214. Retrieved 2012-01-10.Retrieved 2012-01-10.
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