Attention span: myths, and what helps

You’ve probably seen the claim. People now hold their attention for less time than a goldfish, because of phones. It spread so widely that it feels like common knowledge. It has no solid research behind it, and the real picture of attention is more interesting.

Attention isn’t one fixed number

Nobody has “an attention span” the way they have a height. How long you can stay with something depends on what it is. You can read a gripping novel for hours and lose the thread of a form in a minute, with the same mind on the same day.

Interest, tiredness, stress, noise and what else is pulling at you all change the picture. A single number, such as “eight seconds”, can’t capture that.

Minds wander. For everyone.

In a well-known study from 2010, researchers pinged people’s phones at random moments and asked what they were thinking about. People reported that their minds were elsewhere for a large share of the time, across many kinds of activity. Drifting off isn’t a personal failing. It is something minds do.

Why focus dips over time

In the 1940s, Norman Mackworth studied people watching a clock-like display for rare, small signals, a task modelled on the work of radar operators. People did well at first, and then missed more and more signals as the session went on. The pattern is now called the vigilance decrement.

The lesson isn’t that people are bad at paying attention. Staying alert to something rare and repetitive is hard, and nearly everyone slips on it.

Do phones shrink our attention?

It is a popular worry, and a fair question, but the evidence doesn’t back the biggest claims.

What looks more solid is smaller and more practical. In one experiment, simply getting a phone notification, without picking up the phone, made people’s performance on an attention task worse. That is a good reason to manage your interruptions. It isn’t proof that your attention has changed for good.

Multitasking is mostly switching

When people say they multitask, they are usually switching quickly between tasks, and each switch has a price. Research on attention residue found that after you leave one task, part of your mind lingers on it, and that makes the next task slower and weaker.

Closing extra tabs and finishing one thing before starting another isn’t a productivity cliché. It fits how attention behaves.

Small things that help

None of these is dramatic, and some have better evidence than others.

• Take short, planned breaks. A study in 2011 found that brief breaks from a long task kept people’s performance steadier than pushing straight through.
• Do one thing at a time. Switching tasks leaves part of your mind on the last one. Researchers call this attention residue, and it makes the new task harder.
• Protect your sleep. Tiredness is one of the most reliable ways to make focus worse.
• Make the task easier to start. Clear a desk, close extra tabs, set one small goal.
• Expect dips. Noticing that you drifted and coming back is the skill, not never drifting.

A ten-minute focus experiment

Pick one small task. Put your phone out of reach and set a timer for ten minutes. When your mind wanders, which it will, notice it and go back to the task without scolding yourself. Count the returns if you like.

The aim isn’t an unbroken stretch. It is getting quicker at noticing that you drifted, and coming back.

What a short test can and can’t show

A two- to three-minute task on one afternoon tells you how steady your responses were during those few minutes. It can’t tell you how well you focus in general, and it isn’t a test for any condition. If your attention keeps getting in the way of work, study or daily life, a doctor or a mental-health professional can look at it properly.

If you’d like to compare notes on speed, there is a related piece on what a reaction time test measures, and another on the Stroop effect, a classic example of two things competing for your attention.