Tianjin: Chinese researchers have developed a groundbreaking device aimed at helping individuals with hearing impairments to "understand sounds," thereby enhancing their hearing capabilities.

According to Thai News Agency, a team of researchers from Nankai University in Tianjin has introduced the world's first bio-neuroassistant device. This innovative technology allows the brains of those with hearing disabilities to comprehend sound, marking a significant advancement over traditional cochlear implants.

Lead researcher Xu Wen-tao from the College of Electronic and Optics Engineering highlighted the limitations of current cochlear implants, which are mostly confined to solving the problem of 'hearing' due to their signal-synthetic mechanism and limited electrodes. These constraints result in reduced temporal resolution and speech discrimination abilities, particularly in noisy environments.

Sui, a member of the research team, emphasized that the goal was not only to enable hearing but also to foster true sound comprehension. The new device is designed to select, process, and transmit auditory information akin to natural nerve functions. This represents a substantial leap in hearing rehabilitation, shifting the focus from merely restoring auditory perception to reconstructing the auditory system's functionality.

Research underscores that hearing involves not just the ear but also the auditory nerve, which serves as a conduit for transmitting sound signals to the brain. Traditional cochlear implants convert sound into electrical signals but still depend on the patient's existing auditory nerve to deliver these signals to the brain. Xu noted that if the auditory nerve is severely damaged or absent, even advanced cochlear implants may not be effective.

The newly developed device is a neuromorphic artificial neural interface that imitates the natural auditory nerve's signal encoding process. It combines sound reception, neural signal encoding, sound meaning processing, and bioelectrical signal output into a comprehensive artificial neural circuit. Additionally, it filters, analyzes, and encodes sound similarly to natural hearing before transmitting meaningful information to the brain.

The research, titled "Neuromorphic Neural Interfaces for Hearing Restoration," was published online in the journal Nature Materials on July 1.