Curious if this only applies to visuals. What about voices or music? For example can you accurately reproduce your parents, siblings, or friend&#x27;s voices in your head. Also, what happens if you take psychedelic drugs which produce visual hallucinations?<p>Also, I would assume the lack of visuals holds true for dreams as well? For dreams that you remember (if any), what were they composed of? Interestingly, some people dream in B&amp;W and other people dream in color. [1]<p>[1] <a href="http:&#x2F;&#x2F;schwitzsplinters.blogspot.de&#x2F;2008&#x2F;11&#x2F;new-studies-on-black-and-white-vs.html" rel="nofollow">http:&#x2F;&#x2F;schwitzsplinters.blogspot.de&#x2F;2008&#x2F;11&#x2F;new-studies-on-b...</a>