on the behavioural (i.e. cognitive) level. Similarly, the intracerebral gene transfer of ECE (endothelin-converting enzyme) via a virus vector stereotactically injected in the right anterior cortex and hippocampus, has also shown to reduce Aβ deposits in a transgenic mouse model of Alzeimer's dementia. There is also research going on on genoeconomics, a protoscience that is based on the idea that a person's financial behavior could be traced to their DNA and that genes are related to economic behavior. , the results have been inconclusive. Some minor correlations have been identified. Databases about potential modifications George Church has compiled a list of potential genetic modifications based on scientific studies for possibly advantageous traits such as less need for sleep, cognition-related changes that protect against Alzheimer's disease, disease resistances, higher lean muscle mass and enhanced learning abilities along with some of the associated studies and potential negative effects. See also Biohappiness Crossbreeding Directed evolution (transhumanism) Designer baby Epigenetics Genetic screening: allows detecting personal genetic weaknesses to be addressed Genetic factors of addiction Procreative beneficence New eugenics Life extension References Emerging technologies Biological engineering Body modification Biotechnology Molecular biology Engineering disciplines