The flanker task (Eriksen & Eriksen, ) requires (spatial) selective attention and executive control. In this task, irrelevant stimuli have to be inhibited in order to. In the flanker task, the subject is required to move a lever in a particular direction. Which direction is required in condition B? a) Left b) Right. Besides the Stroop and Simon paradigm, the Eriksen Flanker paradigm is one of the three popular tasks to study effects of conflicting stimulus.

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Due to this, inferences and predictions about one task have been erikksen by theorists based on the published findings in a different task. Flanker task main experiment library copyright. Data output file TODO. The target is flanked by non-target stimuli which correspond either to the same directional response as the target congruent flankersto the opposite response incongruent flankersor to neither neutral flankers.

More recent work in this area has used neurophysiological measures such as event-related potentials [11] or imaging techniques such as fMRI.

In addition, costs of shifting instructions may be studied by asking the subject to switch focus between central and flanker stimuli depending on a cue. The save line of the PsyToolkit experiment script determines what is eriksem saved in the data output file. In this task, the stimulus, either a word, letter, or symbol, is shown on the right or left side of the computer screen.

Cognitive tests: Eriksen flanker test

If you want to upload the zipfile into your PsyToolkit account, make sure the file is not automatically uncompressed some browsers, especially Mac Safari, by default uncompress zip files. The flanker taskalso known as the Eriksen flanker task, was designed in the early s by Eriksen and Eriksen. Various psychiatric and neurological conditions also affect erikzen on flanker tasks. In cognitive psychologythe Eriksen flanker task is a set of response inhibition tests used to assess the ability to suppress responses that are inappropriate in a particular context.


The executive subsystem in the Attentional Network Test corresponds to the Eriksen inhibition score. Acta Psychologica Submitted manuscript.

Nonetheless interference still occurs, so it can be studied independently of search mechanisms. Effects of noise letters upon identification of a target letter in a non-search task. A congruent trial, for example, could be the word “left” shown erikzen the left side of the screen, while an incongruent trial might be the word “left” on flankfr right side of eroksen screen.

For example, in the original study, the spacing between the letters was varied, and in addition to compatible an incompatible letters, there were neutral letters.

Another possibility is to use a natural mapping, with arrows as stimuli. The basic effect is that when you need to respond to stimuli “flanked” by irrelevant stimuli, flajker irrelevant stimuli can still affect your response. In this task, you need to respond with the A or L key of your keyboard.

Flanker Task – Cognition Lab

Views Read Edit View history. The study used an on-the-road driving tests, and several laboratory tests including the letter version of the Eriksen task to assess the effects of two antihistamines and alcohol on driving skills.

Languages Polski Edit links. Besides the Stroop and Simon paradigm, the Eriksen Flanker paradigm is one of the three popular tasks to study effects of conflicting stimulus information.


This indicates the nature of cognitive dysfunction for the latter may involve broadening of selective attention. If there is a mismatch between the flanking letters their response and the response required by the central letter, we speak of a “incongruent” or “incompatible” condition. Both alcohol and the antihistamine cetirizine impaired performance in the test measures, and their effects were additive.

Transportation Research Part F: About this implementation The flanker task here is slightly different from the original flanker task from Eriksen and Eriksen for various practical reasons this version is just a bit easier.

Sequential Effects in the Flanker Task”.

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Click here to run a demo of the flanker task. British Journal of Psychiatry. Also, although most Eriksen Flanker Tasks show the flankers on the left and right reiksen the target, they can also be placed above or below the target, or in other spatial orientations. You need this information for your data analysis.

Retrieved from ” https: In this test, participants are told to name the color of a word as quickly as they can and as accurately as possible. Just as with the Eriksen Flanker Task, the response time and accuracy of congruent words is better than those of incongruent words.