1 Lie detector tests conducted by certified professionals typically cost $200-$2,000. 2  The length of the test plays a factor in the price, with all-day tests on the high end of the range. 3  Typical two-hour, single-issue polygraph exams are generally $200-$800.ie detector tests, also called polygraph tests, are used to determine whether a person is telling the truth. According to the American Polygraph Association, research has shown standard lie detector tests are 80%-98% accurate.
What Causes Brain and Spinal Cord Tumors in Adults? The cause of most brain and spinal cord tumors is not fully understood, and there are very few well-established risk factors. But researchers have found some of the changes that occur in normal brain cells that may lead them to form brain tumors. Normal human cells grow and function based mainly on the information contained in each cellâs DNA. Brain and spinal cord tumors, like other tumors, are caused by changes in the DNA inside cells. DNA is the chemical that makes up our genes, which control how our cells function. We usually look like our parents because they are the source of our DNA.
Secondary Brain Tumors. Secondary brain tumors are tumors caused from cancer that originates in another part of the body. These tumors are not the same as primary brain tumors. The spread of cancer within the body is called metastasis. Cancer that spreads to the brain is the same disease and has the same name as the original (primary) cancer. For example, if lung cancer spreads to the brain, the disease is called metastatic lung cancer because the cells in the secondary tumor resemble abnormal lung cells, not abnormal brain cells. Treatment for secondary brain tumors depends on where the cancer started and the extent of the spread as well as other factors, including the patient's age general health, and response to ...