Overview
- The peer-reviewed eNeuro paper published Monday reports that each click–echo adds evidence the brain uses to judge an object's side.
- EEG decoding detected left-versus-right echo cues from the first click, and those signals tracked people’s accuracy in pointing to the target.
- Four blind experts outperformed 21 sighted novices in total darkness, and one expert identified direction after only two click–echo sets.
- The team presented virtual echoes from synthesized mouth clicks in trains of two, five, eight, or 11 and recorded brain activity with EEG.
- Years of research show the brain can repurpose visual areas to map space from sound, which sets up planned studies on training and the roots of expertise.