Does White Noise Help You Focus in ADHD?

For people who cannot work in a silent room but can work in a café, this subject carries a strange relief: perhaps the matter is not discipline but arousal level.

This article looks at the evidence for that claim and proposes a protocol without exaggerating.

Level of evidence: moderate and mixed. There are studies with positive results, and there are newer studies that find no effect. It is not possible to give firm advice; a personal trial makes sense.

What is the claim

The study by Söderlund, Sikström and Smart (2007) reported that auditory white noise improved memory performance in children with ADHD, while in the control group it lowered performance. A 2010 study by the same team found a similar pattern in school children with attention problems.

This two-way effect is the most interesting side of the finding. The same sound helps in one group and harms in the other.

The explanation: moderate brain arousal

The model proposed by Sikström and Söderlund (2007) works like this.

When dopamine function differs in the circuits that play a role in attention and impulse regulation, it becomes harder to separate the signal from the background. A certain level of noise added from outside can help a signal that falls below the threshold become perceptible. This mechanism is called stochastic resonance.

The model's prediction is this: the level of external stimulation needed for optimal performance is higher in ADHD. In other words, silence is not ideal for everyone.

This matches everyday observation. It seems like the physiological counterpart of what I wrote in the article on stimulus seeking: the mind starting to produce its own stimulus in a silent, flat environment.

But the evidence does not point one way

Skipping this part would be a serious mistake.

The study by Jostrup and colleagues (2024) reported that auditory and visual white noise had no effect on oculomotor control in children with ADHD. Other studies published around the same time produced results that question explaining the benefit by stochastic resonance, and showed that who benefits from noise and whose performance drops varies from person to person.

So the picture is this: it works in some people, does not in others, and harms in some. No general recommendation comes out of it.

The consensus statement of the World Federation (Faraone et al., 2021) also treats environmental approaches of this kind as supportive practices; not as a method that replaces treatment.

The evidence does not say “everyone should listen to white noise.” It says “this is a variable worth trying on yourself.”

The application protocol

If you want to try it on yourself, a trial that is of any use has its conditions.

1. Fix the type of sound. White noise, pink noise or brown noise. No words: song lyrics, podcasts, videos. Words occupy the language center and lower performance in reading and writing tasks. I wrote about this distinction in the article on music.

2. Keep the volume constant. High enough to mask speech, low enough not to make itself noticed. Constant adjusting spoils the experiment.

3. Try it on a single type of task. Tasks that involve reading, writing and repetition respond differently. Compare on the same type of task.

4. Measure for two weeks. One day with noise, one day without. At the end of each session, one line: how long I was able to work, how many times I broke off.

5. Decide by the data. Gut feeling is misleading on this subject; especially when trying something new, the “this works” feeling of the first days is not reliable.

When it does not work

If there is sensory overload. For someone with sound sensitivity, constant background sound can be tiring. If there is a picture of sensory overload, this method can backfire.

If headphone fatigue sets in. Working with headphones for a long time is a load in itself.

If you slide into words. For most people white noise turns into music, and music into a podcast, in a short time. At that point the method has turned into a distraction.

If the problem is not sound. If the reason for not being able to focus is the vagueness of the task, sound solves nothing. First you need to go through the questions on task paralysis.

A side use: sound as a signal

Sound has a second function, and it is independent of the arousal model.

Turning on the same sound at every work session turns, over time, into a starting signal. Even if the sound does not make the work itself easier, it gives the signal “it is work time now.”

This is a mechanism based on conditioning, and it is the same logic as in the article on building a routine. Putting on the headphones becomes synonymous with sitting down at the desk.

How it stands with me

What held for me was less the sound itself than its being wordless. I cannot write when there are words playing; I have tried this many times and the result has been the same each time.

The second thing I noticed is that the sound changes with the type of task. When I read, silence is better; when I do repetitive work that needs little thought, sound is better.

I am not writing this as general advice, because the evidence does not support general advice either. What I am writing is this: this is a measurable variable and you can find your own answer in two weeks. I also described how to set up an experiment on yourself in the article on lesser-known methods.