The Blank Tab Effect: A Modern Doorway Phenomenon Have you ever switched to a new browser tab, only to find yourself staring at a blank page and wondering why you opened it in the first place? This common experience is strikingly similar to what psychologists call the doorway effect and it’s one of quirks of how our memory works. Understanding the Doorway Effect The doorway effect occurs when people forget their intentions after passing through a doorway. This happens because our brains compartmentalize information based on the environment, treating each room as a separate context. For example, in the kitchen, your mind focuses on relevant items like refrigerators and sinks. Moving to another room, like a bedroom, requires your brain to reset and focus on new surroundings, causing potential memory lapses.