The child's psychological functions begin to be mediated by culture around the age of two (Culture In Infancy), but the child's physical perceptions such as depth and lateral adaptations have already begun to come into play. Have you ever noticed how a child reaches out to grab something? This is due to the fact that physical depth perception (like many other psychological perceptions) is learned through experience. Once they learn the lateral (depth) movement, it is programmed into their mind as an experience. Having repeated this experience, the mind will eventually automatically retreat when the same or similar opportunity presents itself. The same goes for our thought process. After our brain experiences something on a cultural level, it sets this experience as part of our reality of how things are. This is the time when a person's culture and background begins to develop perception in children and, subsequently, thought processes in adults. “Our brain is shaped by the external world and shapes our perception of the external world.” (Cultural Influence p 59) As we begin to age, our perceptions become culturally shaped. Scientists have actually discovered biological differences in how different cultures process brain stimulation. (Cultural Experience). EATING INSECTS, AN EXCELLENT SOURCE OF PROTEIN, IS PRACTICED IN MANY PARTS OF THE WORLD, BUT NOT IN THE UNITED STATES: THE IDEA OF INSECTS AS FOOD FOR HUMANS HAS AN IMAGE PROBLEM BASED ON MOST AMERICANS' PERCEPTION OF INSECTS LIKE PARASITES. This is done through brain scans to find out which parts of the brain are used during this stimulation. There are differences in the thought process even between different cultures due to their different backgrounds. An example... in the middle of the paper... is because they are just good friends. In Portland, if we see the same people, we assume they're homosexual and it's kind of the norm. In the small town of Pendleton, where they may not have been as exposed to alternative lifestyles, these same people may be chastised, insulted, or perhaps even stones thrown at them. OREGON'S CASCADE RANGE MARKS ONE OF THE MOST DIFFICULT DIVISIONS OF THE COUNTRY'S CLIMATE AND ECOLOGY, AND THIS COUPLES WITH LARGE DIFFERENCES IN THE CULTURE AND LIFESTYLE OF PEOPLE LIVING EAST OF THE CASCADES, WHO TEND TO BE MORE CONSERVATIVES OF THE OREGONS LIVING IN THE WILLAMETTE VALLEY. These are just a couple of examples out of thousands of how a person's culture and background can influence someone's perception. Perception does not necessarily distinguish good from evil. It's just our physiological interpretation due to background and culture.