1. Prozac is an antidepressant medication prescribed to treat people suffering from depression. One way to test and see if Prozac is an effective medication for depression is to run an experiment. The first step of the experiment is to divide the test subjects into two randomly assigned groups, one of the groups is the control group and the other group is the experimental group. The second stage of the experiment involves giving the control group the placebo, without telling them whether it is a placebo or an antidepressant, thus keeping them blind, and the experimental group the Prozac, without telling them if it is the antidepressant. depressant or placebo, which also keeps the experimental group blind. The independent variable in this case is Prozac, while the dependent variable asks and checks each group, the control group and the experimental group, to see which one is doing better or feeling less depressed.2. Correlational studies are a type of research in which the relationship between the two variables, independent and dependent, is studied without performing any experimental manipulation of the independent variable. The reason scientists can't test for lead poisoning on people or animals is because it's inhumane. Therefore, they find people already exposed to lead poisoning and do research from there, called "natural experiments", where something has already happened by chance. , or of course, in the world outside the laboratory. Another example of a natural experiment would be West Nile Virus, or exposure to mercury, or Hg as an element, and the resulting symptoms. Potential disadvantages of correlational studies are the difficulty of comparing two groups that have not been randomly assigned. What makes things difficult... middle of paper ...... the motor cortex contains an inverted map of our body represented as a homunculus, whose motor movements of our body it controls. Keep in mind that the left hemisphere of the brain and the right hemisphere of the brain apply to the motor movement of our body, with the left hemisphere controlling the right part of our body and the right hemisphere controlling the left part of our body. our body. The primary functions of the frontal lobe include motor movement, speech production, and the creation of abstract thoughts. The parietal lobe, located behind each frontal lobe, controls sensations of touch, body position, and speech understanding. The temporal lobe, located at the bottom of each cerebral hemisphere, controls hearing, smell and face recognition. The occipital lobe, located at the back of the brain, controls what we see with our eyes, or in short, our vision.