Researchers are exploring various methods for detecting and modulating deep brain neural information, including the use of electrode arrays and non-invasive stimulation techniques. Studies have investigated the use of these technologies in primates and other mammals, with some focusing on their potential applications and others discussing the ethical implications. The field appears to be advancing with developments in microelectrode arrays, optoelectronic nanoparticles, and other technologies, although the specific focus and goals of the research vary across different studies.