Speaker: Walter Crinnion. Matching toxicants such as mercury, lead, common solvents and pesticides with their symptom pictures can help us understand the origins of neurological degeneration and mental illness. Functional changes in mental acuity and memory may be more associated with the collection of environmental toxicants rather than birthdays. This talk can help clinicians differentiate normal changes from toxic changes. The use of computerassisted neurobehavioral testing is reviewed and natural and botanical assistance in reversing toxicant induced changes are addressed.