Key evidence & numbers
| Timing concept | Meaning | Limit |
|---|---|---|
| First target | Item that must be selected or reported | Task instructions define its role |
| Second target about 200–500 ms later | Often harder to report | Approximate experimental window |
| Immediate following target | Can show relative sparing in some designs | The time course is not a simple fixed blackout |
Raymond and colleagues' original experiment and later reviews examine rapid serial visual presentation: successive items appear quickly, with targets embedded among distractors. The approximate window depends on the sequence and what participants must do. It is not a normative duration measured by every attention game. Raymond et al., 1992 Dux et al., 2009
Is the second item not seen at all?
The behavioural outcome is reduced report of the second target under specific conditions. Theories differ over selection, conscious access, working-memory encoding and related bottlenecks. The reviews examine this evidence rather than equating every missed report with a single early sensory failure. Dux et al., 2009 Martens et al., 2009
This is why report accuracy, target timing and the requirement to identify the first target matter. An instruction or stimulus change can alter the observed effect. A task definition is needed before a millisecond range can be interpreted. Raymond et al., 1992 Martens et al., 2009
How does working memory enter the explanation?
Selecting and retaining the first target can compete with processing a following item. Working-memory theories distinguish storage and control processes, while Cowan's review discusses capacity under particular constraints. These frameworks help formulate explanations; they do not make the blink a direct measure of a person's total memory capacity. Baddeley, 2012 Cowan, 2001
What affects it?
Is it the same as a short attention span?
No. A subsecond difficulty reporting closely spaced targets differs from maintaining performance over minutes. Sustained-attention research examines fluctuations and errors across time, while attentional-blink experiments manipulate the interval between events. Calling both attention does not make their units interchangeable. Esterman et al., 2013 Dux et al., 2009
The sleep-deprivation meta-analysis similarly separates several cognitive domains and outcomes. A lapse on a sustained task cannot automatically be assigned the 200–500 ms explanation, and one missed rapid target does not establish sleep deprivation or a condition. Lim et al., 2010
Do age and sex supply personal norms?
The cited reviews describe experimental effects and variation across designs, not a universal age-by-sex percentile chart for an online test. Assigning someone an attention age from a few missed targets would require validation that these sources do not supply. Martens et al., 2009 Dux et al., 2009
Reliability is also a separate question. The broader reliability-paradox findings show that a robust average cognitive effect does not guarantee a stable individual difference measure. A brief demonstration is not automatically a diagnostic or trait assessment. Hedge et al., 2017
What can you realistically do with the finding?
Use it to understand why closely spaced information can be missed even when someone is trying to attend. The evidence does not establish a universal daily-life spacing rule, a guaranteed training schedule or a claim that practising an attention game makes people generally smarter. Those would require specific transfer evidence. Dux et al., 2009 Martens et al., 2009
For informal task comparisons, keep the sequence rate, targets and report requirements fixed and examine accuracy rather than inventing a single recovery score. A different type of attention game should be described as a different task. Raymond et al., 1992 Hedge et al., 2017
Try the related free test
Attention span test
Try the attention span test to explore sustained responding and errors. It is not a rapid-serial-target attentional-blink experiment, so its score cannot estimate your personal 200–500 ms window. The research explains a related aspect of attention, with a different measurement.
Common questions
Is this caused by blinking my eyes?
The term names a performance effect in rapid visual target reporting, not a required physical blink. Dux et al., 2009
Does it mean everyone has a 500 ms attention span?
No. The approximate window concerns the timing of two targets in a specific experiment, not how long a person can concentrate. Martens et al., 2009
Can a regular attention game measure it?
Only a suitable task with the relevant target timing and report requirements could assess that effect. A sustained-attention score is a different measure. Raymond et al., 1992 Esterman et al., 2013
Sources
- Dux et al. (2009). The attentional blink: A review of data and theory.
- Martens et al. (2009). The attentional blink: Past, present, and future of a blind spot in perceptual awareness.
- Raymond et al. (1992). Temporary suppression of visual processing in an RSVP task: An attentional blink?.
- Baddeley (2012). Working Memory: Theories, Models, and Controversies.
- Cowan (2001). The magical number 4 in short-term memory: A reconsideration of mental storage capacity.
- Esterman et al. (2013). In the Zone or Zoning Out? Tracking Behavioral and Neural Fluctuations During Sustained Attention.
- Lim et al. (2010). A meta-analysis of the impact of short-term sleep deprivation on cognitive variables..
- Hedge et al. (2017). The reliability paradox: Why robust cognitive tasks do not produce reliable individual differences.
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