In other words, what if homosexual behavior itself causes minute organic alterations in the body, which are only a posteriori assumed to be a contributing cause to homosexuality? Scientific studies have indicated that behavior itself might cause the size of the neurons to fluctuate, rather than the neurons causing specific homosexual or heterosexual behavior. Dr. Kenneth Klivington, former assistant to the president of the Salk Institute where Dr. LeVay did his study, pointed to "a body of evidence