Retirement finds most of us spending
more time in our homes, making us aware of how frequently we forget where we’re
headed when we go from one room to another. You might think this is because
we’re home more often. Turns out, there’s a scientific reason for this memory
gap.
The University of Notre Dame
published a study some years ago that has only now come to my attention. The
author is Professor Gabriel Radvansky, and his ND webpage tells us his research
“is
aimed at understanding… how younger and older adults differ on their use of
mental models.” I’m sure this is a fascinating field,
but I’m mostly interested in his paper: “Walking
through doorways causes forgetting.”
In that study,
subjects either walked through a doorway to another room to get something, or
they walked the same distance within a room. Those who crossed a threshold (what
Radvansky calls an “event boundary”) showed
more memory loss than those who walked within a room. He concluded that
these event boundaries compartmentalize activities in the mind, filing them in separate
mental spaces. This impedes the ability to retrieve
thoughts or decisions made in a different room.
His conclusion comes as no
surprise to me. In fact, I can add to his findings. The more doorways you walk
through, the harder it is to remember what you started out planning to do. We
have a big house (please, Lord, not for much longer). I have things going on
from the basement to the third floor and the two floors in between. I rarely get
through a day without forgetting which floor I’m headed to, never mind for what
reason. The further I have to go, the more likely I am to forget why before I
get there.
Speaking of floors,
stairs are another major “event boundary.” If something requires me to hit the
stairs, chances are I’m going to forget what it was that put me there. If I’m
lucky enough to remember why I’ve arrived on an upper floor, I’ll likely realize
I left an important paper in the basement from whence I set out. Or I need a
tool that’s in a closet or drawer on a lower floor.
Luke’s nail clippers,
for instance. He’s usually on one of the second floor beds, but his clippers
are in a cabinet off the kitchen. I’m not likely to forget why I’m carrying a
bowl of his food upstairs. But it can take weeks before I put the notion of
carrying the clippers with me into the equation. Note to self: why not store
the extra pair of clippers in the linen closet between the bedrooms? Second
note to self: remember where you just put that first note.
I think I know why
stairs are such a major contributor to forgetfulness, other than Radvansky's research or Murphy’s Law.
It has to do with this charming A. A. Milne poem:
Half
way down the stairs is a stair where I sit.
There
isn’t any other stair quite like it.
I’m
not at the bottom; I’m not at the top.
So
this is the stair where I always stop.
Halfway
up the stairs isn’t up and it isn’t down.
It
isn’t in the nursery; it isn’t in the town.
And
all sorts of funny thoughts run round my head.
It isn’t really anywhere! It’s
someplace else instead!”
There you have it. We
lose our minds on stairs because when we get halfway from here to there we’re
nowhere. And our minds are happy to join us there.
This leads to the
conclusion that the best way to deal with these event boundaries is to
eliminate them from our homes. In other words, when we retire, we should adopt
an open floor plan: one enormous room with no doorways and no stairs. My
husband loves that loft-style architecture. Me, not so much.
If you’re giving this
careful thought, you’ve probably realized that there needs to be at least one
door: to the bathroom. Chances are, we won’t forget why we were headed there,
no matter how many trips we make in a day. For most of us, that’s one thing to
be thankful for. Of course, when we come out of the bathroom, figuring out
where to go back to is something else entirely. That's what sticky notes are for. Note to self: add post-its to shopping list.