Human ultrasonic hearing is induced by a direct ultrasonic stimulation of the cochlea

► Thresholds for air-conducted sounds increased following the cisplatin administration. ► Thresholds for BCUs decreased following the cisplatin administration. ► The observed decrease in BCU threshold may be explained by the hypersensitivity. ► BCU thresholds were independent of a lower frequency sound due to non-linear process. ► Direct ultrasonic stimulation to the cochlea induces human ultrasonic perception.