This is the first post in a three-part series about the San Diego Pain Summit. You can find part two here and part three here (coming soon). This initial post is a summary review of the San Diego Pain Summit Talks prior to 2023. My first time attending was in February 2023, so I decided to watch as many of the previous years' videos as possible in the months leading up to the event. My brain still hurts. Many of the talks led me to read research papers and as I moved through the work, a beautiful web was created as many of these presenters have connections to other presenters. The pain neuroscience and pain management world, it seems, is far-reaching, and also quite small. Having nearly completed watching all the previous videos, and most of the ones listed below multiple times, I've compiled the most impactful pieces (in my opinion), organized into three themes: pain neuroscience, pain management, and special topics. You can watch any - or all - the previous San Diego Pain Summit recordings here.
I originally started watching videos from the San Diego Pain Summit in order to learn Pain Neuroscience. Yep... NERD ALERT! Lately there has been debate on social media about the utility of teaching pain neuroscience to patients. The theory was that if patients understood how pain worked, they might be better able to tolerate it and potentially even have reduction in symptoms. I have read numerous books and written posts about them including Explain Pain and Explain Pain Supercharged in the past, but I don't actually teach most patients pain neuroscience. I do, however, find continued benefit as a clinician understanding the neuroscience so that I can better apply it to the interventions I'm choosing. The level of scientific research presented was impressive, and I’d be lying if I said I understood all this work, but I took away many interesting pieces that inform my patient care.
Pain Neuroscience
Let's start with animals. In the
2016 Summit, Dr. Robert Sapolsky’s lecture was not recorded, but he permitted his
Q&A session to be shared. Dr.
Sapolsky is a Neuroendocrine Researcher who studies stress at Stanford University and who also examined behaviors of baboons and other animals in Africa. For this he reminds me of my childhood hero, Jane Goodall, though she studied chimpanzees. He is the author of several books, including "Why Zebra’s Don’t Get Ulcers,”
which I recently read, and he shares a fun anecdote about how zebras tend to be very social creatures with short memories of their stresses. A zebra could be running away from a lion and once it's free, quickly return to eating grass, seemingly not perseverating on its recent close encounter with a lion. Their stress levels don't persist the same way human stress levels do. If I can't find my keys in the morning, it's going to keep my stress levels high through lunch time, much longer than the zebra who just avoided imminent death. Dr. Sapolsky describes social grooming - when animals groom one another, removing parasites and eating them off one another - and how this behavior is a stress reliever with associated decrease in heart rate and cortisol (stress hormone) levels. He explains that each person's level of optimal stress varies from the person next to them. Cortisol, when sustained at elevated levels during a chronic stress state, can lead to illness.
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| Dr. Jeffrey Mogil talks mice and rats |
Also in 2017, Dr. Melissa Farmer, Clinical Psychologist and Co-Founder/CEO of Aivo Health, shared her work based on animal models she created to represent some of the patients she had treated. She talks about memory: the capacity to encode, store, retain, and recall information and engrams: the brain's physical changes that represent a memory. Memories induce changes in your brain and this doesn't occur in a single location, but rather it exists in a network throughout the brain. When you think back to a moment that makes you very happy, perhaps you can link together what you saw, the sensations on your skin, smells and sounds and even how you felt, all different brain areas mapped together from that event. You can also have these memory maps for pain. She described synaptic efficacy: a nervous system pathway becomes more efficient at transmitting information when it is repeated, so in the case of a person experiencing chronic pain, the brain pathways are being used repeatedly and become more efficient at experiencing pain. Memories are based on learning and she also describes a key retention window within the four hours following education where there is opportunity to enhance memory through various approaches such as caffeine or incorporating multiple senses. Her presentation also illuminates research from Dr. Apkurian's (below) lab indicating how the limbic system, the brain’s emotion center, is involved in chronic pain. Dr. Farmer demonstrates how fear can create a memory that can be reversed through training via a dramatic video of a patient overcoming his fear of tarantulas.
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| Stages for Chronic Pain |
New Zealand Occupational Therapist Dr. Bronnie Lenox Thompson’s 2016 talk described Motivational Interviewing (MI) as a communication structure for patient care to be a partnership based on clinicians guiding patients with compassion and by evoking motivation for them to pursue their own goals. She includes three related concepts: cognitive dissonance: inner drive to hold all of our beliefs in harmony, but when a patient's beliefs are contrary to our beliefs, we may have to act in a way that opposes what we believe. This is a conflict in our own thought practices as we think but act in opposing ways. Self perception theory: we like to behave according to what we say and believe. In this theory, our emotions are related to our actions and behaviors. Interpersonal warmth: being a nice, warm, supportive, listening person to encourage others to go along with what we say. With these concepts in mind, giving your patient autonomy in deciding how to improve their condition considering your guidance is an ideal therapeutic alliance approach.
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| Alison Sim demonstrates CBT |
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| Social Communication Model of Pain |
You may notice that nothing I've mentioned has been physical yet. And I'm a physical therapist. The Pain Summit includes occupational therapists, massage therapists, chiropractors, mental health providers, physicians, and patients as attendees, so the talks cover many different perspectives. All the providers would need to move beyond communication and into their specialized interventions. In 2017, Cor-Kinetic Owner and Physio Ben Cormack from London talked about exercise and movement. The numerous benefits of exercise - like improved respiration and cardiovascular endurance, increased strength, and reduction in pain, are all discussed. He describes the need to guide patients so they transfer from an external to an internal locus of control and help them to form new memories that are positive instead of the negative pain memories they've associated with movement. In 2018, Canadian Biomechanist, Physio, Chiro, and Strength and Conditioning Specialist Greg Lehman shared "When Biomechanics Doesn't Matter." These guys are really great presenters, but it's probably harder to make neuroscience funny where it's a bit easier to make exercise a bit comical. Both of them demonstrate that specific exercises like the ones we frequently provide in physical therapy practice aren’t the necessary target for intervention – but more so getting patients to participate in the activities that bring them joy is a more optimal approach. I've previously written about Dr. Lehman's "Reconciling Pain Science and Biomechanics" course and here he negates numerous concepts learned in PT School about movement patterns and biomechanics that research does not support. It’s not that form and posture and movement patterns never matter, it’s just that for the general population, most of the time it is unlikely to be the driver of pain. So yes, exercise is helpful for management of chronic pain. The exercise probably doesn't need to be specific and is one piece of a more complicated puzzle.
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| Body-Wide Symptoms of Long Covid |
And
last, but very certainly not least, I encourage all healthcare providers to
watch the 2022 talk from Dr. Lisa VanHoose entitled "Your Pain Evaluation Is Incomplete Without a Zip Code Assessment." where she goes into great detail
about your personal biases and how zip
code data can give you a lot of context and is easy to get. This link (after you scroll down to "Discover the Power of Data") gives you the chance to enter a zip code and see numerous data points including household income, cost for medical insurance, how many people live in that neighborhood, diversity, and demographics. The data will be presented as averages and needs to be confirmed along with the story from the patient in front of you. Understand that two patients could live a mile away from each other, and
one have limited access to medical care, physicians, pharmacies, schools, green
spaces, public transportation, grocery stores, and more – all of which impact
their lived experienced and their health. If you can't watch the full hour of her talk or you're not convinced, here's the five minute video "A tale of two zip codes" Dr. VanHoose shared that starts you thinking. I found this talk eye opening and highly recommend it.
There were so many additional excellent speakers, many of whom I’ve gotten to know in some capacity, others who are juggernauts in the field. Some of the topics, such as pelvic health, are incredibly important but are a very small percentage of my patient population, so I couldn't relay the important pieces from those talks in a way that would help others. If you're working with patients experiencing chronic pelvic pain, I highly encourage you to go to the Pain Summit YouTube Page and check out the videos there. Other talks stood alone like the presentation from Dr. Sandy Hilton and Dr. Mark Milligan on clinician burnout, which is a really important topic and relevant, but is less specific to patient care. I had to draw a few lines, and it left out amazing speakers. I’m sorry to leave everyone else out of this post. Your work and your knowledge have impacted me, and I’m so grateful.
Stay tuned for Part Two coming soon!






























