The information in chapter 4 is about our human senses and how they are not always right or are misleading. We all know how all of our senses work, but until I read this chapter I had never thought about them in the way it explains. Such as the way our brain multitasks and how we focus on specific inputs. Everyone trusts their senses, but they are not always right. This chapter talks about how our brain chooses the types of information it uses, it picks the information from past experiences. It explains how our brain has a sensory field, and that our senses work from the senses meeting the brain with three things; whats in the sensory field, what was there a moment ago and what we remember from our past.
What I found most interesting about this chapter is our the way our hearing works. There are vibrations of air molecules that create the sound waves, and then creates pressure to the cochlea, then the hair cells are enclosed. The message is then sent through the auditory nerve. I have always wondered why we lose our hearing as we get older, and I found out that it's because we lose our sensory cells. Our cochlea changes with age, and the hairs of the cochlea are lost over time and the nerve endings often deaden, and our hairs don't grow back which is why we lose hearing with age.