What Is the Process of Cortexi? Cortexi is created to function in four different ways, including: Promoting Sound Hearing: It may get more difficult to hear as you age since your ear's hair cells naturally deteriorate. Typically, the noise in your environment is processed by your ear hair cells into electrical signals that your brain can understand. The ear hair cells may become damaged for a number of reasons, including injury, aging, disease, and some prescription drugs.