·      Sept., 1995, Neurotrophins and Sensory Neurones, The Royal Society, London, UK, Organizer and Speaker

·      Nov., 1995, American Pain Society, Los Angeles, Invited Plenary Speaker

·      May 1996, Canadian Network Centre of Excellence on Recovery of Function, Symposium on Inflammatory Pain, Ottawa, Invited Speaker 

·      Aug., 1996, International Association for the Study of Pain, Symposium on neuronal sprouting in the spinal cord, Vancouver, Canada, Invited Speaker

·      Sept., 1996, NIH Conference on Spinal Cord Injury, Washington, DC,  (Organizing Committee) and Invited Discussant

·      Nov., 1996, Society for Neuroscience, Washington, DC, Special lecture (plenary)

·      Nov., 1997, NIH Conference on Pain, Washington, D.C. Discussion leader

·      Nov., 1997, Neuroscience Symposium on Spinal Cord and Nerve Injury: Models and Mechanisms. Wright State University, Dayton, OH, Plenary Speaker.

·      March 1998, Symposium on Motor Function and the Spinal cord, Emory University, Invited Speaker

·      April, 1998, Symposium on Information Processing in the Axonal Tree. Paris, France, Invited Speaker

·      July 1998, International Congress of Pharmacology, Munich, Germany, Symposium on Therapeutic Effects of Neurotrophins, Invited Speaker

·      Dec., 1998, Colloquium on “The Neurobiology of Pain”  National Academy of Sciences, Irvine California, Invited speaker

·      June, 1999, Gordon Conference on NGF, Bristol, RI, Invited Speaker (unable to attend due to family emergency)

·      Sept., 1999, ASPET- Ray Fuller Symposium on the Cellular Mechanisms and Novel Strategies for Pain control, Indianapolis, IN, Invited speaker

·      Nov., 1999, International Bladder Symposium, Washington, DC, Invited speaker

·      May, 2000, NGF 2000, Montreal, Canada, Invited speaker

·      Nov. 2000, Journal of Physiology Symposium, New Orleans, LA, Invited speaker

·      Jan., 2001, NIH Conference on Spinal Cord Injury, Bethesda, MD, Invited speaker

·      April, 2001, NIH Spinal Cord Symposium in honor of Robert E. Burke, Bethesda, MD, , Invited speaker

·      April, 2001, American Pain Society, Symposium on Neurotrophins and Sensitization of Nociceptors, Phoenix, AZ,  Invited speaker

·      Sept., 2001, Spinal Cord Injury: mechanisms of spinal autonomic reflexes and their plasticity. Sydney, Australia, Invited speaker

·      Sept., 2001, Segerfalk Symposium: Spinal cord function, plasticity and repair, Ystadt, Sweden, Invited Speaker.

·      June, 2002, Symposium on Motoneurons: Groningen, The Netherlands, Invited speaker

·      March, 2003, American Pain Society, Symposium, Bumps, Burns and Bruises: Ion channels underlying the response to physical stimuli. Chicago, Invited Speaker.

·      April, 2004, Spring Pain Research Conference, Grand Cayman Island, Contributed oral presentation

·      August, 2004 IV Congreso Internacional de Rehabilitacion Infantil Oritel, Mexico City, Invited speaker

·      September, 2005  Symposium on Synaptic Transmission in honor of Stephen Redman, Heron Island, Australia, Invited Speaker

·      September, 2005  Retreat of the Groupe de Recherche sur le Système Nerveux Centrale, Université de Montréal, Orford, Québec, Invited Keynote Speaker

·      April, 2006, ASPET Symposium on Therapeutic Effects of Nerve Growth Factor, San Francisco, CA, Invited speaker

·      April, 2006, Spring Pain Research Conference, Grand Cayman Island, Contributed oral presentation

·      April 2007, Banbury Conference, Cold Spring Harbor Laboratory, Molecular Approaches to Pain: Translational Potential and Challenges, Invited Speaker

·      September 2007, Joint Spinal Cord Meeting: State of the Art in Spinal Cord Injury Research and Clinical Application, Zurich Switzerland, Invited Speaker

·      January, 2008, Spinal Cord Injury Symposium, NY Academy of Science, Organizing Committee and participant.

·      May, 2008, Spinal Cord Injury Symposium, Christopher and Dana Reeve Foundation, Atlanta, Ga, Invited Participant

·      May, 2008, Symposium on “Development and Function of Somatosensation and Pain” Berlin, Germany, Invited Speaker

·      June, 2008, 2008 International Conference of Pain Research and Control, Wuhan, China, Invited Plenary Speaker

Departmental seminars- about 90 seminars in USA, Canada, Mexico, Europe, Australia