Why I Can’t Find My Coffee Mug, Explained

Well, maybe. Walking through doorways robbed my memory, or so says Professor Radvansky in this piece just published in Notre Dame News.

We’ve all experienced it: The frustration of entering a room and forgetting what we were going to do. Or get. Or find.

New research from University of Notre Dame Psychology Professor Gabriel Radvansky suggests that passing through doorways is the cause of these memory lapses.

“Entering or exiting through a doorway serves as an ‘event boundary’ in the mind, which separates episodes of activity and files them away,” Radvansky explains.

“Recalling the decision or activity that was made in a different room is difficult because it has been compartmentalized.”

The study was published recently in the Quarterly Journal of Experimental Psychology.

Conducting three experiments in both real and virtual environments, Radvansky’s subjects – all college students – performed memory tasks while crossing a room and while exiting a doorway.

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.

Go read the rest. Me losing track of my coffee cup was a running joke when I was Sir Topham Hat at Crack O’ Dawn Trucking. Nowadays, I just drink my coffee on the way into work. Problem solved! Now…where the hell is my cell phone? Perhaps I should just remain seated.


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