n-back task

The n-back task is a cognitive exercise that tests your working memory, where you need to remember a sequence of items (like numbers, words, or symbols) and identify when the current item matches one from a specific number of steps earlier (e.g., 2 steps back). For example, if the task is 2-back, you compare each new item to the one two before it. This helps assess and train your ability to hold and manipulate information in your mind over short periods, and it’s often used in research to study brain function and enhance cognitive skills.