Frequency-following responses (IMAGE) University of Pittsburgh Caption The sound profiles of Mandarin tones (T1-4) elicit similar frequency-following responses in humans (left), macaques (middle) and guinea pigs (right) both at the scalp and the auditory cortex Credit Nike Gnanateja Gurindapalli Usage Restrictions For use with this press release License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.