2. Correlational studies are a type of research in which the relationship between the two variables, independent and dependent, is studied without performing experimental manipulation of the independent variable. The reason Scientists can’t test lead poisoning on people or animals because it is inhumane, therefore, they find people already exposed to lead poisoning, and do research from there, which is called, “natural experiment,” where something already occurred by chance, or naturally, in the world outside the laboratory. Another example of natural experiment would be the West Nile virus, or exposure to Mercury, or Hg as an element, and the symptoms that occur from it.
The potential drawbacks of correlational studies are the difficulty of comparing two groups that were not randomly assigned. Therefore making it diffic...
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...the motor cortex contains an upside map of our body represented as a homunculus, which it controls the motor movements of our body. Keep in mind that the left brain hemisphere and the right brain hemisphere do apply to the motor movement of our bodies, left hemisphere controlling the right part of our bodies and the right hemisphere controlling the left part of our bodies. The major functions of the frontal lobe include, motor movement, producing speech, and creating abstract thoughts. The parietal lobe, located in the rear of each frontal lobe, controls the sensations of touch, body position, and understanding speech. The temporal lobe, located at the lower side of each cerebral hemisphere, controls the hearing, smelling, and the recognition of faces. The occipital lobe, located at the back of the brain, controls what we see with our eyes, or in short, our vision.
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