Researchers have identified a brain activity pattern that functions as an internal compass for navigation, which could enhance understanding of neurological diseases and improve navigational tech in robotics and AI.have for the first time been able to pinpoint the location of an internal neural compass which the human brain uses to orientate itself in space and navigate through the environment.
Measuring neural activity in humans while they are moving is challenging as most technologies available require participants to remain as still as possible. In this study, the researchers overcame this challenge by using mobile EEG devices and motion capture. In a separate study, the researchers monitored signals from 10 participants who were already undergoing intercranial electrode monitoring for conditions such as epilepsy.
After accounting for ‘confounds’ in the EEG recordings from factors such as muscle movement or position of the participant within the environment, the researchers were able to show a finely tuned directional signal, which could be detected just before physical changes in head direction among participants.
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