READ13 minSKILLSAttention & FocusUPDATEDOct 15, 2026

A row of arrows looks simple until the surrounding arrows start giving the wrong answer. In Flanker Arrows, your job is to focus on the center arrow and tap the direction it points while ignoring the arrows around it. That small rule creates a compact version of one of cognitive psychology’s classic experiments: the Eriksen flanker task.

Key Takeaways

  • Flanker tasks study selective attention: prioritizing relevant information while filtering nearby distractions.
  • When surrounding arrows point in the opposite direction, they create response conflict and usually slow responses or increase errors.
  • A strong performance generally suggests effective attention to the target, response selection and resistance to interference in that moment.
  • A score is not a direct measure of intelligence, overall attention, personality, brain health or future performance.
  • Single-session results can be affected by practice, fatigue, device latency, motor speed, strategy and how the game is scored.

Mentometry · Free to play · Attention & FocusFlanker ArrowsFocus on the center arrow only and tap the direction it points, ignoring the arrows around it.Play now ▶

What the Eriksen flanker task measures

The Eriksen flanker task was introduced by psychologists Barbara and Charles Eriksen in 1974. In the original experiment, people identified a target letter while ignoring nearby “noise” letters. The noise could support the same response as the target, conflict with it, or be relatively neutral. Conflicting flankers made responses slower, showing that information outside the intended focus can influence processing. (mendeley.com)

Later versions used arrows because their meaning is immediate and easy to map onto two response buttons. A central arrow might point left or right, while the surrounding arrows either point in the same direction or point the other way. The central arrow is task-relevant. The flankers are task-irrelevant, but they are still visible and they can activate a competing response.

This is the key scientific idea: selective attention is not always a perfect spotlight that makes irrelevant information disappear. Distractors can be processed enough to affect action, even when a person is deliberately trying to ignore them. The flanker effect is the measurable performance cost produced by that interference.

Congruent and incongruent trials

On a congruent trial, the center arrow and its neighbors point in the same direction. The visual display and the required response agree. On an incongruent trial, the center arrow points one way and the flankers point the other way. The display now supports two possible responses, although only one is correct.

Researchers commonly compare reaction time and accuracy across these conditions. The difference between incongruent and congruent performance is often called the flanker effect or congruency effect. A larger difference means that conflicting flankers had a larger impact under those testing conditions. It does not automatically mean that a person has poor attention in everyday life.

Science Corner

The classic flanker effect is an experimental contrast, not a universal personal “attention score.” It is calculated from performance across different trial types, and its meaning depends on the stimulus design, timing, number of trials, response method and scoring rules.

Selective attention: choosing the right signal

Selective attention helps the mind allocate processing priority. In Flanker Arrows, the instruction establishes a goal: identify the center arrow and ignore the surrounding arrows. Your visual system still receives the entire display, but goal-directed attention should give greater weight to the center position.

That filtering is not merely visual. The arrows also carry response meaning. A left-pointing arrow is associated with one action, and a right-pointing arrow with another. When the flankers point in the opposite direction, they may prepare or partially activate the wrong response before the target has been fully resolved.

This is why the task is more revealing than a simple reaction-time challenge. It combines perception, rule maintenance, response selection and inhibition of a competing action. The game’s central challenge is a short boss fight between two tendencies: respond to the whole display, or follow the task rule and respond only to the center.

Selective attention can operate through several related mechanisms. A person may enhance processing of the target location, reduce the influence of the flankers, delay responding until the target is clear, or combine all three. Behavioral data alone usually cannot identify one mechanism with certainty.

Attention is influenced by the display

The strength of flanker interference depends on features such as spacing, similarity, exposure time and the relationship between the distractors and the response options. In the original Eriksen research, closer noise letters produced more interference, and noise associated with the opposite response was especially disruptive. (mendeley.com)

Selective attention: choosing the right signal

That finding matters when interpreting any arrow-based game. A score reflects not only the player’s control of attention but also the challenge created by the display. Dense, fast or visually similar stimuli can create a different task from widely spaced, slower stimuli.

Conflict resolution and response inhibition

Flanker trials create at least two kinds of conflict. First, there is stimulus conflict: the center arrow and the flankers point in different directions. Second, there is response conflict: the display activates competing motor choices. The correct answer is not simply “see the center arrow.” It is “select the response linked to the center arrow while suppressing the response suggested by the flankers.”

This is why the flanker task is often discussed alongside response inhibition and executive control. The word inhibition can sound as if the brain fully shuts down the distractors. In practice, the task may involve a mixture of selective enhancement, distractor suppression, delayed response selection and competition between partially activated actions.

Conflict-monitoring theories propose that the cognitive system detects competition between incompatible response tendencies and increases control when needed. In a widely cited model, Botvinick and colleagues argued that conflict monitoring helps regulate cognitive control, with the anterior cingulate cortex playing a role in detecting situations that call for additional control. (pubmed.ncbi.nlm.nih.gov)

Neuroscience research has also examined how control systems may amplify task-relevant information and reduce the influence of irrelevant information. One influential account links conflict monitoring with control processes involving frontal brain networks, while emphasizing that the precise neural mechanism is more complicated than a single “attention center.” (nature.com)

Trial featureWhat it createsTypical behavioral consequence
Center and surrounding arrows agreeCompatible information and one dominant responseFaster and more accurate responding is usually expected
Center and surrounding arrows disagreeCompeting stimulus and response informationResponses are often slower or less accurate
Rapid presentation or short response windowGreater pressure on perceptual selection and motor timingMore speed–accuracy trade-offs
Repeated exposure to the same rulePractice with the target location and response mappingPerformance may improve without a broad change in ability
Pro Tip

When playing for a meaningful personal baseline, use the same device, posture and response method. A touchscreen, mouse and keyboard can place different demands on motor speed and timing.

Conflict monitoring and the next trial

One of the more interesting findings in conflict research is that performance can change after a difficult trial. In many studies, the effect of a conflict is smaller when the previous trial was also incongruent. This pattern is known as the congruency sequence effect, conflict adaptation effect or Gratton effect.

The classic interpretation is that conflict prompts a temporary increase in control. After encountering incompatible arrows, a participant may pay more attention to the target or become more cautious about the distractors on the next trial. The result can be better protection against interference.

However, the interpretation is debated. A smaller conflict effect after a conflict trial can also arise from stimulus–response priming, feature repetition, expectancy and other sequential influences. Reviews conclude that conflict adaptation may contribute, but it is not safe to treat every trial-to-trial change as a pure readout of a specialized control system. (pubmed.ncbi.nlm.nih.gov)

This distinction illustrates an important principle in cognitive science: a robust group-level effect does not automatically reveal a simple mental trait in each individual. Researchers can reliably observe that incongruent trials tend to be harder than congruent trials while still finding that a person’s exact interference score varies from session to session.

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Conflict monitoring and the next trial

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What a high Flanker Arrows score generally reflects

Because the supplied game description does not specify its scoring formula, a high score should be interpreted cautiously. In a typical speed-and-accuracy version of this task, strong performance generally reflects the ability to identify the target, maintain the rule, resist conflicting flankers and produce the correct response efficiently.

It may also reflect familiarity with the game format. Practice can improve understanding of the instruction, response mapping and visual layout. A player who has learned the rhythm of a particular game may perform better than someone with similar underlying abilities who is encountering it for the first time.

A high result can therefore be described as evidence of effective performance on this particular selective-attention challenge. It is not evidence that someone has a globally superior brain, higher intelligence or uniformly better executive function.

If the score rewards speed heavily, a player may achieve a high result by responding quickly while accepting occasional errors. If it rewards accuracy more strongly, a cautious player may do well through deliberate response control. Without the scoring details, the same displayed score cannot be mapped confidently onto one psychological capacity.

What a low score may reflect

A lower result may indicate that the player was more affected by distractors, responded more slowly, made more errors or struggled to maintain the task rule. But several non-cognitive factors can produce the same outcome: fatigue, divided attention, unfamiliarity with the controls, a poor viewing angle, motor difficulty, touch-screen latency or a momentary lapse in concentration.

Even within cognitive performance, a low result does not identify one specific weakness. The bottleneck could be visual discrimination, response mapping, cautious decision-making, motor execution or interference control. The task is a compact measurement situation, not a diagnostic instrument.

Reality Check

Do not treat one low score as proof of an attention problem, and do not treat one high score as proof of exceptional intelligence. Meaningful interpretation requires repeated, comparable measurements and a clear understanding of how the game converts performance into a score.

What the game does—and does not—say about broader ability

The flanker task is useful because it isolates a clear challenge. It asks whether a person can follow a target-selection rule when nearby information points toward a competing response. That makes it relevant to selective attention, interference control and aspects of cognitive control.

But human cognition is made of many partly related abilities. Memory, language, reasoning, visuospatial processing, planning, sustained attention and learning are not interchangeable. A person can be quick and accurate in an arrow task yet have very different strengths in other domains.

Research on individual differences also urges caution. Classic cognitive tasks can produce strong and repeatable experimental effects across groups while showing less stable person-to-person differences than users might expect. Hedge, Powell and Sumner found that test–retest reliability varied across several widely used tasks, including the Eriksen flanker task, and argued that robust laboratory effects do not automatically make a task a reliable measure of stable individual traits. (pubmed.ncbi.nlm.nih.gov)

That limitation is especially relevant to game scores. A leaderboard can be motivating, but ranking is not the same as psychological measurement. Differences in hardware, practice, age, visual comfort, motor control, gaming habits and scoring rules can all influence performance.

What the game does—and does not—say about broader ability
Pros

  • Targets a well-established research construct: interference during selective attention.
  • Creates a clear, easy-to-understand conflict between target and distractors.
  • Can make speed–accuracy trade-offs and concentration lapses visible to the player.
  • Repeated play may help establish a personal performance pattern under similar conditions.
Cons

  • Does not provide a complete measure of attention or intelligence.
  • Scores may mix attention, reaction speed, motor timing and familiarity with the controls.
  • Single-session performance can be noisy and state-dependent.
  • Without validated norms, a leaderboard position has limited scientific meaning.

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How to play and interpret results more thoughtfully

If you want to use Flanker Arrows as a personal challenge rather than a one-off test, consistency is more useful than chasing a single peak score. Treat each session as one data point in a small self-observation experiment.

  1. Use the same device and control method whenever possible.
  2. Play at a similar time of day and avoid comparing a rested session with one played while distracted or exhausted.
  3. Record the score, number of errors if available, and any obvious conditions such as interruptions or unfamiliar controls.
  4. Compare sessions with yourself rather than assuming the leaderboard represents a clinical or scientific norm.
  5. Look for patterns across several sessions, not dramatic conclusions from one result.

Pay attention to the speed–accuracy trade-off. If you become faster but less accurate, the change may reflect a different strategy rather than improved conflict resolution. If you slow down and accuracy rises, you may be using more deliberate response control.

For a broader set of interference challenges, Color Clash uses a different conflict: the word names one color but is displayed in another, and the task is to choose the ink color rather than the word. That makes it conceptually related to the Stroop task, although it is not the same paradigm as Flanker Arrows.

Mentometry · Free to play · Attention & FocusColor ClashA word names a color, but is shown in a different color. Tap the button matching the ink color, not the word.Play now ▶

Reverse Direction adds a rule-based response switch: the color determines whether the player should follow the arrow or tap the opposite direction. It therefore places more emphasis on maintaining and applying a conditional rule than on ignoring spatial flankers alone.

These games can make cognitive concepts feel tangible, but they should be treated as structured challenges, not as proof of a fixed mental profile. The best use of a score is often practical and modest: notice how your performance changes with focus, practice and strategy.

Challenge

Play Flanker Arrows three times on separate days using the same device. Aim for a balanced strategy: respond promptly, but do not sacrifice accuracy just to gain speed.

Flanker, Stroop and Simon tasks all involve responding to relevant information while ignoring an irrelevant feature that may activate a competing response. Their surface details differ. Flanker tasks usually create conflict between nearby stimuli, Stroop tasks often create conflict between word meaning and ink color, and Simon tasks commonly create conflict between stimulus location and response location.

Because the tasks share a family resemblance, people sometimes describe all of them as measuring “inhibitory control.” That shorthand is convenient but incomplete. Each task also depends on perceptual processing, task rules, response mappings, timing and the specific source of conflict.

The broader Mentometry Brain Games directory includes games categorized around attention and focus, such as NeuroNation – Brain Training (by Synaptikon GmbH). Its store description is marketing text and should not be treated as independent evidence that a product changes general cognitive ability.

NeuroNation - Brain Training coverMemory Games · Brain TrainingNeuroNation – Brain TrainingSynaptikon GmbH★ 4.7 (4.5K votes)Free · App StoreMemoryAttention & FocusView ratings & details ▶

Hidden-object games such as Hidden Object Games: Seek It can also involve visual search and sustained attention, but spotting an item in a scene is not the same construct as resolving arrow conflict. Similar labels such as “attention” can cover very different mental operations.

Hidden Object Games: Seek It coverHidden Object & Spot the Difference · Relaxing & ZenHidden Object Games: Seek ItNimbleMind★ 4.9 (160.2K votes)Free · App StoreSpatial & VisualAttention & FocusView ratings & details ▶

That difference is worth remembering when moving between games. A strong result in one challenge may show that its particular combination of visual search, memory, rule use or response control suits your current skills. It does not guarantee the same result in a flanker task.

Conclusion: a focused window, not a whole-brain score

Flanker Arrows is grounded in a serious and influential line of research. Its central arrow and distracting neighbors model a basic problem of goal-directed behavior: relevant and irrelevant information arrive together, but only one response should win.

A high performance generally suggests that you handled this combination of selective attention, response competition and task-rule control effectively in that session. A low performance suggests that the challenge had a larger effect on your speed or accuracy at that time. Neither result, by itself, defines your intelligence, character, health or overall cognitive ability.

Think of the game as one instrument in a larger cognitive toolkit. It can show how you manage a particular kind of interference. It cannot tell the whole story of how you learn, reason, remember or adapt.

Player Two: Games to Try Next

Hand-picked from Mentometry and the Brain Games directory, matched to this article.

Frequently Asked Questions

What is the Eriksen flanker task?

It is a cognitive task in which people respond to a central target while ignoring nearby distractors. When the distractors suggest a competing response, reaction time and errors usually increase.

What does Flanker Arrows measure?

It mainly challenges selective attention, interference control and response selection. Performance also depends on reaction speed, motor timing, task familiarity and the game’s scoring rules.

Does a high Flanker Arrows score mean I am more intelligent?

No. A high score generally reflects effective performance on this particular arrow-conflict challenge. It is not a complete measure of intelligence or broader cognitive ability.

Why are conflicting arrows harder?

Surrounding arrows can activate a response that conflicts with the direction of the center arrow. Resolving that competition usually takes more time or produces more errors than responding when all arrows agree.

Can Flanker Arrows diagnose an attention problem?

No. A game score is not a diagnostic assessment. Fatigue, distraction, device differences, practice and motor speed can all affect performance.

How can I compare my scores more fairly?

Use the same device and control method, play under similar conditions and compare several sessions rather than one result. Interpret changes alongside both speed and accuracy when those measures are available.

Sources

  • Effects of Noise Letters Upon the Identification of a Target Letter in a Nonsearch Task — Barbara A. Eriksen and Charles W. Eriksen, Perception & Psychophysics, 1974.
  • Conflict Monitoring and Cognitive Control — Matthew M. Botvinick, Todd S. Braver, Deanna M. Barch, Cameron S. Carter and Jonathan D. Cohen, Psychological Review, 2001.
  • Congruency Sequence Effects and Cognitive Control — Tobias Egner, Cognitive, Affective, & Behavioral Neuroscience, 2007.
  • Opposing Influences on Conflict-Driven Adaptation in the Eriksen Flanker Task — Michael J. Wendt, Thomas Kluwe and Arne Peters, Psychological Research, 2009.
  • The Heterogeneous World of Congruency Sequence Effects: An Update — Maren Grange and colleagues, Psychonomic Bulletin & Review, 2014.
  • The Reliability Paradox: Why Robust Cognitive Tasks Do Not Produce Reliable Individual Differences — Craig Hedge, Georgina Powell and Petroc Sumner, Behavior Research Methods, 2018.
  • Cognitive Control — David Badre and colleagues, Annual Review of Psychology, 2025.

Educational content, not medical or financial advice.

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