| 2001-2004 Editor-in-Chief, IEEE Transactions on Biomed Engineering |
| 2000 Co-Chairman, Symposium on Adaptive Systems |
| 2000 Member of the Program Committee, ICA 2000, Helsinki, Finland |
| 2000 Member of the Program Committee, Workshop on Signal Processing for Real World Problems |
| 1999-2001 Associate Editor, IEEE Transactions on Neural Networks |
| 1999 Session Organizer, ASILOMAR Conference on Signals, Systems and Computers |
| 1999 Member of the Program Committee, International Joint Conference on Neural Networks |
| 1997 Program Chair, IEEE Workshop on Neural networks for Signal Processing, Amelia Island |
| 1997-1999 Associate Editor, IEEE Transaction on Signal Processing |
| 1996-2000 Associate Editor, IEEE Transactions on Biomed Engineering |
| 1996 Technical Chair, Sintra Conference on Spatio-Temporal Models, Sintra, Portugal |
| 1996 Member of Technical Committee, IEEE Workshop on Neural Networks for Signal Processing, Kyoto, Japan |
| 1996 Program Chair, Office of Naval Research Grantees Workshop on Nonlinear Dynamical Systems, Gainesville, FL |
| 1995 Track Chair, Speech and Signal Processing area, Neural Information Processing Systems (NIPS8), Denver |
| 1995 Member of Technical Committee, IEEE Workshop on Neural Networks for Signal Processing, Boston |
| 1994 Member of Technical Committee, Neural Information Processing Systems Conference, Denver |
| 1994 Member of Technical Committee, IEEE Workshop on Neural Networks for Signal Processing, Greece |
| 1994 Member of Technical Committee, Int. Symp. Integrating Knowledge and Neural Heuristics, Pensacola, FL, May |
| 1993 Member of Technical Committee, IEEE Workshop on Neural Networks for Signal Processing, Maryland |
| 1992 Chairman of Session Quantitative EEG analysis, European EEG Congress, Lisbon |
| 1991 Program Co-Chair, Conference on Chaos and EEG, Tallahassee, Florida |
| 1990 Chairman of the session Expert systems in EEG analysis, IEEE EMBS 90, Philadelphia |
| 1990 Member of the Organizing Committee of the 5th IEEE Int. Symp. on Intel. Control, Philadelphia |
| 1990 Member of the discussion panel on Chaos and Fractals in Electroencephalography, 1st Conf. on Biomedical Computing, Atlanta, GA |
| 1990 Co-Editor, Special Issue on Interaction with and Visualization of Biomedical data, IEEE Trans. Biomedical Engineering |
| 1988 Member of the Organizing Committee, BioEng ’88 Conference, Porto, Portugal |
| 1987 Chairman of the session EEG signal Analysis, 9th Annual Int. Conf. IEEE/EMBS Society, Boston |
| 1984 Chairman of the session Signal Processing 1st Symposium of Electronics and Communications, IEEE sponsored meeting, Lisbon, Portugal |
| 1982 Chairman of the session Other Applications of Signal Processing, Portuguese Workshop on Signal Processing and its Applications, Portugal |
| 1982 Organizer of the workshop Computers in Biomedicine, University of Porto, Portugal |
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