Psycholinguistics 101

I found this book by chance in the library when I was looking for some books about behavioral psychology. To tell you the truth, I didn’t know the academic area “psycholinguistic.” I ran over this book, but this field seemed interesting for me… Psycholinguistics covers “zone 4?” Is that correct? If so, this theory and knowledge will be useful for my future education program (I’m going to create a new kind of education program: “integral developmental education program” I don’t want to explain this here in detail, but this education program aims to support human psychological growth.)

This is my impure motives, but I hope my English will improve by learning linguistics and applying the theory to myself.