People without audition problems.
The aim of this experiment is to determine the role of attention in the rule-learning process. The task is very simple: while you listens some Martian words, you'll see different figures on the screen. Some of them are red and some are black. Your task is to press the key B each time you see a red figure. After this, there is a test phase. Here, you will listen to two Martian words consecutively. You have to choose which word is more similar to the Martian language you heard during the red-figures task.