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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Read here how to easily deal with this. 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. Journal of Experimental Psychology.

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Pages with DOIs inactive since Download The PsyToolkit code zip file. You need this information for your data analysis. Acute administration of antihistamine or alcohol severely impairs CRT in test measures, a deficit which Ramaekers et al. Further reading Eriksen, B. Earlier work had used visual search[9] but because these tasks involve an active scan of the environment to identify the target stimulus, this experimental design made it difficult to separate the effects of distraction from the effects of the search process.

To measure how conflicting information affects choice response speed, different conditions are introduced: In this example, you will see 5 letters appear above the fixation point, but you must only respond to the central letter which is above the fixation point.

Mixed Focus — Single Focus task switching. Quick Links Sign up for free trial Request more information Request cost estimate.


A congruent trial, for example, could be the word erikksen shown on the left side of the screen, while an incongruent trial might be the word “left” on the right side of the screen. The word can either be congruent, which would mean the word erkksen match the font color, such as the word “blue” in blue font color, or it can be incongruent where the word would not match the font color like the word “purple” in yellow font color.

Nonetheless interference still occurs, so it can be studied independently of search mechanisms. They proposed a continuous flow model of perception gask which information is processed in parallel for different stimulus elements, and accumulates over time until sufficient information is available to determine a response.

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Just as with the Eriksen Flanker Task, the response time and accuracy of congruent words is better than those of incongruent words.

Evaluation of a two-choice tester using ethanol”. Each stimulus consisted of a set of seven letters, with the target stimulus placed in the central position. Flanker task main experiment library copyright. There are three different types of conflict tasks that research has been largely focused on, one of these being the Eriksen Flanker Task.

Besides the Stroop and Simon paradigm, the Eriksen Flanker paradigm is one of the three popular tasks to study effects of conflicting stimulus information. Development of attentional networks in childhood. In PsyToolkit, the data output file is simply a textfile. The flanker paradigm was originally introduced as a way of studying the cognitive processes involved in detection and recognition of targets in the presence of distracting information, or “noise”.

For example, Kopp et al.

Cognitive tests: Eriksen flanker test

It is observed to be more active in response to processing incongruent stimuli than congruent stimuli. The three attentional networks: The subject must focus on a target stimulus while ignoring adjacent flanker stimuli. Data output file TODO. A direct comparison of two competing accounts”.


On this first trial trial n the incongruent stimulus presented will lead to an increase in conflict detected by the ACC. The ACC is a frontal brain structure responsible for a wide variety of autonomic functions. From Wikipedia, the free encyclopedia. The flanker taskalso known as the Eriksen flanker task, was designed in the early s by Eriksen and Eriksen. More recent work in this area has used neurophysiological measures such as event-related potentials [11] or imaging techniques such as fMRI.

Eriisen this test, participants are told to name the color of a word as quickly as they can and as accurately as possible. This indicates the nature of cognitive dysfunction for the latter may involve broadening of selective attention.

Library Scripting Features Pricing Contact. Eriksenwho first published the task inand also for the flanker stimuli that surround the target. Impairment in selective attention flankrr in the influence of prior learning? Various forms of the task are used to measure information processing and selective attention. Some results and methodological considerations”.

Then, that measured conflict is used to enhance the amount of control the participant has on the next trial.

This process leads to an interaction called the Gratton effect, which is the finding of a lower interference effect after an incongruent trial compared to the effect after a congruent trial. Eevaluation of a small group intervention in prekindergarten and kindergarten children.