P300 Wave

The P300 wave is a specific pattern in brain activity that occurs approximately 300 milliseconds after a person recognizes something meaningful or unexpected. It reflects how the brain processes important information, such as detecting a rare sound or recognizing a familiar image amidst others. Scientists measure this wave using a technique called EEG, which records electrical signals from the scalp. The presence and characteristics of the P300 wave help researchers understand attention, decision-making, and certain neurological conditions. Essentially, it's a marker of the brain’s quick response to significant stimuli.