Born in Unye/Ordu, eastern Black Sea, Turkey. Completed Medical School, Goettingen, Germany, in 1966. Worked in various universities on the motor system, cognition, cerebral lateralization, finger length patterns, sex-related differences in handednessi, intelligence, finger-length patterns regarding the sex hormones, and the Uner Tan syndrome. Retired in 2004. Now studying the Uner Tan syndrome (human quadrupedalism, mental retardation, and impaired speech or no speech), as a senior scientist in Cukurova University, Adana, Turkey.