Tests of Sustained Attention

Toulouse-Piéron Test

This perceptual and attention test evaluates the ability to concentrate and resistance to monotony.

It consists of a sheet of paper with multiple graphic signs (small squares with dashes in different directions), where the subject must identify and cross out those that are identical to the models presented at the top.

Although the manual suggests a maximum time of 10 minutes, in clinical practice fatigue usually appears earlier, being common applications of 3 to 5 minutes. It is independent of cultural level, but requires visual acuity.

It is used to detect attention deficits and to train concentration in clinical and sports contexts.

Grid Test

Originated in sports psychology, the Grid Test (or grill board) evaluates selective attention and concentration ability.

It consists of a table with scattered numbers (from 00 to 99 or smaller sequences such as 1 to 38) that the subject must locate and point out in consecutive order in the shortest possible time. It can be administered in fixed time intervals (e.g. 1 minute) to measure how many numbers the subject locates, or to measure the total time it takes to complete the sequence.

It is a versatile tool for assessing attentional fatigue before and after demanding tasks, and is also useful as a cognitive stimulation exercise.

Summary

The Toulouse-Piéron test evaluates concentration and resistance to monotony. The subject must identify and cross out graphic signs identical to a model, generally applied for three to five minutes due to fatigue.

The Grid Test measures selective attention and visual scanning. It requires locating numbers in consecutive order within an unordered grid, assessing the speed of completing the sequence or fixed intervals.

Both tools detect attentional deficits. The Grid is especially useful for measuring attentional fatigue before and after demanding tasks, and also functions as an effective exercise for cognitive stimulation and training.