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Before you start, make sure that you are seated in a quiet environment with your sound turned on. Make sure you can see your screen clearly.

In this experiment, you will be presented with a series of spoken words and written words, each preceded by a plus (+) symbol. Try to keep your eyes focused on the screen and keep your gaze fixed on the plus (+) symbol in between words.

If the word you heard began with the sound /b/ (like the b sound in beach or balm), press F on the keyboard.

If the word you heard began with the sound /p/ (like the p sound in peach or palm), press J on the keyboard.

If you aren't sure, pick which sound you think is closest to what you heard. When you are ready, press the spacebar to begin the experiment.