Have you ever walked into a room, only to forget what you were planning to do in the room? It happens to the best of us every once and a while. However, Psychology Professor Gabriel Radvansky of the University of Notre Dame has recently come up with an explanation. He claims that walking through a doorway is an "event boundary" in the mind. This separates episodes of activity, such as why you were entering a room, and files them away. The reason that it is difficult to remember why you came into a room can be hard is because your brain "puts the information away". Professor Radvansky conducted three experiments, all on college students. The experiments took place in both real and virtual environments, and involved memory tasks while the students crossed a room or while they exited a doorway. Radvansky found that the students were more likely to forget the information after walking through a doorway than after walking the same distance across a single room.
This article is very interesting, however the claims should probably be evaluated using a few of the six principles of critical thinking. First off, this study is fairly recent, so it has not yet been replicated. Until other psychologists can find similar results, these claims could be considered a one-time fluke. In addition, in my opinion, this is an extraordinary claim. Therefore, there should be extraordinary evidence to support it. However, this article contains no specific data or very many specifics about the experiment. There should be no lack of evidence if these claims are to be accepted as true. The experiment offered no explanation as to why the majority of the time we can remember just fine. Finally, there could be many other reasons why people forgot things while walking through doorways. Some of the rival hypothesizes could deal with people's natural ability to remember things, or the sort of information or tasks the participants were to remember.
While this claim is very interesting, there are many additional steps that need to be taken for it to be taken seriously and accepted as true.