In a novel „The Tell-Tale Heart‟(1843), a main character suffering from a schizophrenia shouts: “Didn’t I tell you that what you think is madness is actually a hypersensitivity of emotions?” 

Sensory changes are particularly prominent in the early stages of schizophrenia. For example, the main character experienced sharpened hearing. However, visual changes are more common than auditory changes. A patient depicts: 

“Now the color looks brighter. It’s like fluorescent paint. You can’t tell if things are solid or liquid. I’m not a very artistic person, but I think I’m more sensitive to color. Everything looks lively. Especially red.” 

I found this narrative very interesting because it was exactly what I went through when I had a severe depression a few years ago. And it was the starting point of my colour and pattern research. 

Sometimes