A thought has been tracked by neuroscientists as it travels through the human brain.
A study using epilepsy patients undergoing surgery has given neuroscientists an opportunity to track in unprecedented detail the movement of a thought through the human brain, all the way from inspiration to response.
The findings, published in 2018, confirmed the role of the prefrontal cortex as the coordinator of complex interactions between different regions, linking our perception with action and serving as what can be considered the "glue of cognition".
Previous efforts to measure the passing of information from one area to the other have relied on processes such as electroencephalography (EEG) or functional magnetic resonance imaging (fMRI), which, while non-invasive, offer less than perfect resolution.
The study led by researchers from the University of California, Berkley, recorded the electrical activity of neurons using a precise technique called electrocorticograhy (ECoG).
This required hundreds of tiny electrodes to be placed right up against the cortex, providing more spatial detail than EEG and improving the resolution in time of fMRI.
