Deutsch English Francais

Eye-Movement - TAP 2.3.1

One of the most efficient forms of focusing is to look at something, that is, to change the direction of gaze and fixating on relevant information in the environment. This is a central function, on the basis of which we explore our surroundings and are able to orient ourselves in a given situation. Impaired eye movement can represent a major handicap in road traffic and may result in impaired reading ability, especially when there is a right-sided manifestation. In rehabilitation a deficit in saccadic eye movements can render compensation training of a visual field defect considerably more difficult.

In this task, the latency of saccadic eye movement to the left or to the right is assessed in a reaction task. Either a critical or a neutral stimulus is presented to the left or right of a fixation stimulus (an "S" lying on its side) in pseudorandom sequence. A critical stimulus appears centrally at irregular intervals. The subject should respond as quickly as possible by pressing the key as soon as this critical stimulus appears.
The task is administered under two conditions: a "gap" and an "overlap" condition.

Screenshot of the Subtest "Eye Movement" of TAP 2.3

The instruction screen of the subtest "Eye movement" of TAP 2.3 (to get a larger view (1024*768) - opening in a new browser window - please click on the image)

Execution time: approx. 8 minutes