On this episode of Talks With Toh, we talk with Jeffrey Lim a PhD Candidate in Dr. Zoran Nenadic's lab. He is working specifically on brain computer interfaces (BCI), devices that are designed to record a person's brain signals and use it to perform some sort of action. This includes moving things with a person's mind and restoring a person's ability to walk for a few steps. We get into the nitty gritty of how difficult it is to interface a machine with human thoughts. The barriers are both physical and biological! Check out his research at Center for  BioMedical  Signal Processing and  Computation.