Brain-Computer Interfaces This image shows a person wearing an EEG (Electroencephalography) cap used for brainwave recording and monitoring. These caps contain multiple electrodes to measure the electrical activity of the brain. The data is being displayed on a computer screen, likely for research or diagnostic purposes. This setup is common in neuroscience labs and medical facilities for studying brain activity, conducting brain-computer interface (BCI) experiments, or diagnosing neurological conditions.