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Listening to speech with a guinea pig-to-human brain-to-brain interface

Richter et al. explored the possibility of exchanging neural information between the brains of guinea pig and human. They determined characteristic frequency and recorded guinea pig inferior colliculus (ICC) neural response patterns to single spoken words with NeuroNexus A1x16-5mm-100-177 probes. The single-word spike trains were then played through corresponding electrodes of cochlear implants in human subjects. Subject performance on a few word recognition tests was better than chance, confirming the possibility of lexical information transmission from an animal auditory system to the human auditory system.

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