1. The Human Brain and Chemical Imbalances
... stone instruments. It was definitely not a sterile procedure, as sterile technique was not implemented until the early 19th century. The theory behind trephining was through this opening the evil spirits-- thought to inhabit one's head and causing the mental illness-would be released and the individual would be cured. Some of the people who underwent this stone aged procedure survived, but most perished from infection due to lack ... of sterile instruments. Trephining did not prove to be effective in removing the so-called spirits and the technique did not last long. In brief contrast, ...
- Word Count: 812
- Approx Pages: 3
- Grade Level: Undergraduate