There are a number of stimuli that are necessary to be able to sense physical stimuli. The smallest amount of stimulation needed to allow us to experience sensory input is called absolute threshold. Second, the smallest contrast you notice between sensory outputs is called the difference threshold. The difference threshold increases as the stimulus becomes stronger. In this section of the chapter, it is recognized that objects in the physical world do not have color and that objects reflect light waves created by specific lengths. What happens is that our visual systems describe these waves as different colors. Light waves adjust to the information our brain can process. The cells in our eyes respond to certain wavelengths and adjust the physical signal into information that the brain can interpret. While you are driving, you come across a green light. Your brain will respond and tell you “Go”. Our brains are interesting when it comes to processing perception. Say no to plagiarism. Get a tailor-made essay on “Why Violent Video Games Should Not Be Banned”? Get an Original Essay The process of perception involves five specific stages. Sight, touch, smell, hearing and taste. This process also includes proprioception, which creates the ability to detect changes related to how bodies are positioned as well as our bodily movements. The process of perception is a sequence of events that begins with the environment, moving through perception of the stimulus followed by action to response to the stimulus. The process is happening, but we never focus on the time it takes us to think about the process as it happens. Many stages of the perception process play an important role. That being said, environmental stimulus, attended stimulus, retinal image, transduction, neural processing, perception, recognition, and action allow perceptual processing to occur. Steps and sequences play an important role in perceptual processing. These steps allow us to select, organize, and interpret information in different ways.Keep in mind: This is just a sample.Get a personalized article from our expert editors now.Get a Trial PersonalizedInsightsI chose the topic of how our senses detect physical stimuli and how our brain processes perception because there is a lot of useful information that can be extracted and exploited. I think this topic is interesting because it allows us to fully understand how our senses detect physical stimuli and how our brain processes perception. This topic was important to me because it explains the certain amount of stimulus that requires us to be able to detect physical stimuli. As well as the steps and understanding of how our brain processes information. These are all key factors that are important to us as human beings..