| Year | Position | Institution |
| 1977 | Postdoctoralfellow | University Of Texas Medical Branch 4 |
| 1986 | University Of California Medical School 4 | |
| 1990 | Roche Institute Of Molecular Biology 4 | |
| 1991 | Roche Institute Of Molecular Biology 4 | |
| 1992 | Jefferson Medical College 4 | |
| 1993 | Jefferson Medical College 4 | |
| 1994 | Jefferson Medical College 4 |
| Year | Role | Course |
| 1990 | Faculty | Neurobiology 1990 |
| 1991 | Faculty | Neurobiology 1991 |
| 1992 | Faculty | Neurobiology 1992 |
| 1993 | Faculty | Neurobiology 1993 |
| 1994 | Faculty | Neurobiology 1994 |
| Year | Subject | Role |
| 1977 | Independent | |
| 1986 | Independent |