I always tell myself I’m going to eat more fruit.
I’ll buy it.
I’ll put it in the refrigerator.
I’ll have every intention of eating it.
Then I put it in the drawer.
And that’s usually where our relationship ends.
It’s not that I suddenly hate fruit.
I genuinely forget it’s in there.
Bananas have a much better survival rate in my house.
They’re sitting in the middle of the table.
I see them when I walk by.
I remember that I bought them.
The fruit hidden inside the refrigerator drawer?
Apparently that’s on its own.
And this doesn’t just happen with food.
I have a plethora of charging cables.
If you asked me how many I own, my brain would probably tell you two.
In reality, there may be 42 of them scattered around the house or sitting inside drawers somewhere.
I also have an incredible ability to put something somewhere safe and never see it again.
Right now, I have two pairs of sunglasses that are missing.
I know they’re here.
I know I probably put them somewhere specifically because I didn’t want to lose them.
I bought another pair.
Hopefully the other two eventually show up.
And tasks?
Forgetting tasks once they’re no longer in front of me might actually be my specialty.
If any of this sounds familiar, you’ve probably heard it described online as ADHD object permanence.
The experience is real.
The name isn’t quite right.
What Does “Out of Sight, Out of Mind” Mean With ADHD?
For some people with ADHD, something can become much harder to remember once it stops being visible or stops demanding their attention.
Food gets pushed into the back of the refrigerator.
An email notification gets cleared with every intention of answering it later.
A bill gets placed inside a drawer.
A task gets interrupted by another task.
Something important gets put somewhere “safe.”
None of these things have actually disappeared.
But they can disappear from your current awareness.
That’s an important distinction.
ADHD is associated with difficulties involving attention, organization, forgetfulness, losing things and executive functioning.
Research has also found differences in aspects of working memory among people with ADHD.
Those difficulties can make keeping track of information, and acting on it later, more complicated than simply knowing that something exists.
Which brings us to object permanence.
Is “ADHD Object Permanence” Actually a Thing?
Not in the way the phrase is commonly used online.
Object permanence is a developmental concept.
It refers to understanding that an object continues to exist even when you can’t see it.
If someone puts your phone inside a drawer, you don’t suddenly believe your phone has ceased to exist.
You know it’s still there.
That’s object permanence.
There isn’t evidence that ADHD causes adults to lose that basic understanding, and impaired object permanence isn’t part of the diagnostic criteria for ADHD. The phrase has instead become popular as a way of describing the very real out-of-sight, out-of-mind experience many people with ADHD report.
So when my fruit disappears into the refrigerator drawer, I haven’t forgotten that fruit continues to exist as a concept.
I haven’t lost object permanence.
I’ve stopped actively thinking about that fruit.
That’s a different problem.
Working Memory May Be Part of the Explanation
One piece of this is working memory.
Working memory allows us to temporarily hold information in mind while we’re using it.
Think about reading a set of instructions and remembering step one while you’re working on step two.
Or walking into another room while keeping track of what you went there to get.
Or remembering that the thing you just moved is now in a different location.
ADHD has long been associated with working-memory difficulties, although as with pretty much everything involving ADHD, not every person experiences them in exactly the same way.
And working memory isn’t simply a storage locker where memories either exist or don’t.
It has limited capacity.
Information has to compete for your attention.
That’s where visibility can become useful.
The bananas sitting on my table don’t require me to spontaneously retrieve the thought:
I bought bananas. I should eat one.
The environment is reminding me.
I see banana.
I remember banana.
The refrigerator drawer isn’t doing me that favor.
There’s Also Something Called Prospective Memory
This part gets especially interesting when we stop talking about objects and start talking about tasks.
Because sometimes the problem isn’t:
Where did I put the thing?
It’s:
I completely forgot I was supposed to do the thing.
Researchers call the ability to remember to carry out an intention in the future prospective memory.
Remembering that you have a dentist appointment tomorrow.
Remembering to move the laundry into the dryer.
Remembering to call someone after work.
Remembering to send an email when you get home.
Remembering why you opened your phone before another notification hijacked your attention.
Studies of adults with ADHD have found difficulties with aspects of prospective memory and especially the processes involved in planning and carrying out future intentions. One controlled study found particularly large difficulties in task planning among adults with ADHD, while more recent research has continued finding lower everyday prospective-memory performance in adults with ADHD compared with controls.
That’s closer to what I mean when I say:
Once a task isn’t in front of me anymore, there’s a decent chance I’m going to forget about it.
The intention can still exist.
Retrieving that intention at the right moment is another matter.
Why Visible Things Can Be Easier to Remember
This is why I’ve started thinking about visibility differently.
Leaving something where I can see it can function as an external cue.
The environment is carrying part of the memory burden for me.
That’s why hiding every reminder in the name of being organized can sometimes backfire.
A perfectly clean drawer doesn’t help much if everything inside it stops entering your awareness.
The solution obviously isn’t to dump your entire life onto the kitchen counter.
But there’s a middle ground between:
everything hidden
and
my house looks like someone turned a junk drawer upside down.
The goal is to make important things easier to encounter at the moment you need them.
What This Can Look Like in Everyday Life
The out-of-sight, out-of-mind experience isn’t limited to losing your keys.
It can show up as:
- buying another item because you forgot you already owned one
- finding expired food that you fully intended to eat
- putting something somewhere safe and forgetting where “safe” was
- forgetting a task after being interrupted
- seeing a message, planning to answer later and then completely forgetting
- missing appointments unless they’re on a visible calendar or reminder
- forgetting laundry in the washer
- discovering three versions of something because every previous version disappeared into a drawer
- needing frequently used objects to remain visible
- remembering something immediately when you finally see the object again
Some of those experiences can happen to anyone.
ADHD isn’t diagnosed because you once forgot strawberries in your refrigerator.
What matters is the broader, persistent pattern and whether difficulties with attention, memory, organization and follow-through are interfering with your life.
Why “Just Remember” Isn’t a Particularly Useful Strategy
This is the part that used to frustrate me.
If remembering were reliable, I wouldn’t need the reminder.
Telling myself:
Don’t forget this.
feels very convincing at the moment.
Future me apparently wasn’t included in that conversation.
So instead of relying entirely on remembering internally, it can help to move some of that information into the environment.
That might mean:
Visible storage.
Clear containers, open shelves or designated visible locations for things you regularly forget.
Strategic placement.
Putting something where you’ll encounter it when you need to act on it.
Reminders that appear at the right time.
A reminder that’s visible three hours before you can do something may disappear from awareness long before you can act on it.
Calendars and task systems you actually look at.
The greatest organizational system ever invented is useless if you forget the organizational system exists.
Reducing duplicate hiding places.
Having one predictable home for important objects can reduce the number of “safe places” you have to search.
Externalizing future intentions.
If something needs to happen later, get it out of your head and into a system that can bring it back to you.
There’s some research behind this broader idea of strengthening cues around future intentions. Recent studies have explored techniques such as mentally imagining yourself carrying out a future task, with preliminary evidence that strengthening how an intention is encoded can improve prospective-memory performance. That’s interesting, but it isn’t a magic ADHD hack, and the research is still developing.
The bigger principle is simpler:
Your brain doesn’t have to do all the remembering by itself.
I Still Want Those Glasses
I keep thinking someone is eventually going to build the perfect version of this.
A normal-looking pair of glasses with a screen only you can see.
Everything you need to remember sitting somewhere in your field of view.
Work.
Home.
Appointments.
Things to buy.
Things you’ve been putting off.
You look at a category and everything you need appears.
Basically an external working-memory system floating in front of your face.
Whoever gets that right is going to make a lot of money.
Until then, I have calendars.
Reminders.
Notes.
Apps.
Visible objects.
And apparently 42 charging cables.
The Experience Is Real Even If “Object Permanence” Isn’t the Right Name
I understand why ADHD object permanence became popular terminology.
“Out of sight, out of mind” describes the experience incredibly well.
But there’s a difference between a phrase being relatable and it being scientifically accurate.
People with ADHD don’t simply stop understanding that objects exist when they’re hidden.
The more useful explanation appears to involve a combination of attention, working memory, executive functioning and prospective memory, systems that help us keep information accessible and remember to act on it when the right moment arrives.
That distinction matters.
Because if the problem were literally object permanence, there wouldn’t be much you could do about where you put the strawberries.
But if part of the problem is keeping important information accessible?
You can change the environment.
You can create cues.
You can make important things visible.
You can stop expecting your brain to hold every future intention in the background while you’re doing seventeen other things.
And maybe you can eat the fruit before it turns into something you no longer recognize.