Until now, we have assumed, as commonly done in neuroscience, that the computation is classical. However, Qualia may also be explained with quantum computing. As a physicalist, we must ask why modern neuroscience cannot detect qualia. One reason could be, that the brain must be conscious, which in many experimental set-ups wouldn’t be the case. The other reason could be that the computation is based on quantum mechanics which cognitive neuroscience, defined in the realms of classical physics, wouldn’t observe. If qualia is a manipulation of a wave function, then it only becomes observable after its collapse. This may be the reason why we cannot communicate the information stored and processed in qualia to the outside world because we cannot fully obtain this information in a single measurement.