Does Walking Through Doorways Cause Forgetfulness?

We’ve all been there: you’ve got a million things you’re trying to get done, you’re running behind, you walk through a door into another room to get something and… wait a minute, what are you looking for again? Son of a…

According to new research (PDF here) from Notre Dame psychology professor Gabriel Radvansky, passing through doorways actually does cause us to forget things because of the way the brain compartmentalizes information. Doorways, according to Radvansky, serve as “event boundaries in the mind.” The simple act of having to adjust to a new setting takes just enough mental effort to cause a break in short-term memory. “Recalling the decision or activity that was made in a different room is difficult because it has been compartmentalized,” says Radvansky. 

Radvansky’s finding is based on a series of experiments he conducted, in both real and virtual environments, using 55 Notre Dame students (31 female) as subjects. The results were published recently in the Quarterly Journal of Experimental Psychology. From a university press release:

In the first experiment, subjects used a virtual environment and moved from one room to another, selecting an object on a table and exchanging it for an object at a different table. They did the same thing while simply moving across a room but not crossing through a doorway.

Radvansky found that the subjects forgot more after walking through a doorway compared to moving the same distance across a room, suggesting that the doorway or “event boundary” impedes one’s ability to retrieve thoughts or decisions made in a different room.

The second experiment in a real-world setting required subjects to conceal in boxes the objects chosen from the table and move either across a room or travel the same distance and walk through a doorway. The results in the real-world environment replicated those in the virtual world: walking through a doorway diminished subjects’ memories.

The final experiment was designed to test whether doorways actually served as event boundaries or if one’s ability to remember is linked to the environment in which a decision – in this case, the selection of an object – was created. Previous research has shown that environmental factors affect memory and that information learned in one environment is retrieved better when the retrieval occurs in the same context. Subjects in this leg of the study passed through several doorways, leading back to the room in which they started. The results showed no improvements in memory, suggesting that the act of passing through a doorway serves as a way the mind files away memories.

 


Jennifer

This is such a small sample size to base these findings, and with that they probably fall within the same 10 year or so age range, since they were ND students. Plus in today's technologically stimulated world, they could just be forgetting because of the 100's of other things going on around them. I've always been told that if I walk through a doorway and forget something, I can usually recall what I was thinking if I walk back into that same room. It could be the brain subconciously having to process new information (the new room, smells, lights, sounds, etc.) where as going back into the room you originally processed the thought promotes the memory.

pshrnk

State dependant memory is old news. Environmental context influences mental state. There is nothing new here.

Jim

Excellent information. I often experienced and observed the inability to follow directions and reorient one's self to a route after travelling in an elevator. I suspected all the cables disrupting unconscious magnetic alignments. Which I had to toss out when observing on shorter hydraulic only elevators. "Compartmentalization" aligns with the observations and offers another option for cause.

Eric M. Jones

If you live a purposeful life and meditate, this won't be a problem. Most people's brains are full of random noise which makes this experiment meaningless. College kids?...even worse!

Meditate.

Dumbledorito

Random thoughts are often amazing sources of creativity.

Trying to constantly make your brain as unproductive as a blank sheet of paper isn't appealing.

Bill Conerly

For an example of forgetting why you entered a room, http://www.gocomics.com/pickles/2011/11/27