Trail Making Test is a neuropsychological method, the main task of which is to study the visual form of a person’s attention and ability to switch between several tasks. TMT includes 2 parts of 25 cards and is organized by analogy with the children's puzzle "Connect all the points in a certain sequence".
Trail Making Test helps determine:
For the first time, the Trail Making Test was applied in 1944 and assessed the general intelligence of a person as part of a large block of individual tests to determine the general abilities of military personnel. In 1956, Reitan tried to use the test to identify cognitive impairment provoked by cerebrovascular diseases. The study showed high performance, and therefore in the late 1950s, TMT was included in the Halstead-Reitan battery Neuropsychological Battery of Tests.
Today, the Trail Making Test is widely used in clinical practice as a diagnostic method for identifying abnormal brain functions.
The essence of TMT: a serial connection of 25 goals on paper or on a monitor screen.
TMT's task: the subject must finish connecting the indicated points as soon as possible — it is time that is the main indicator of performance.
The structure of TMT: two subtests — A and B. Subtest A reveals the speed of cognitive processing of information by the subjects, subtest B examines cognitive processes (flexibility of thinking, working memory, control of attention and inhibition).
Features of subtest A:
Features of subtest B:
The results of the study are based on the age of the test object. For the most objective diagnosis of TMT is used in combination with other neuropsychological techniques.