The Medical Science Liaison (MSL) role continues to evolve—no longer just a scientific resource, but a strategic partner, a listener, and often, a subtle agent of change. While data remains at the core of what we do, it’s how we deliver that data—and more importantly, how we connect with healthcare professionals (HCPs)—that separates a good MSL from a truly impactful one.
This article is a reflection on how to take MSL engagements beyond transactional information exchange and into the realm of influence, trust-building, and long-term value creation. It’s less about reworking your slide deck, and more about rethinking the science of engagement.
From Presenter to Partner
Most HCPs have seen enough data to last a lifetime. What they remember, however, is how they felt during the interaction. That’s where the real work of an MSL begins—not just delivering the science, but delivering it in a way that resonates.
The best MSLs operate like cognitive architects: shaping how information is processed, remembered, and acted upon. To do this, you have to shift from a presenter mindset to a partner mindset—someone who helps KOLs think, reflect, and sometimes even reframe their beliefs.
🔍 Getting Into the Mind of a KOL: 5 Advanced Techniques Rooted in Psychology and Cognitive Science
KOLs are analytical, time-poor, and often inundated with repetitive messaging. To rise above the noise, MSLs must use more than information—they must activate attention, influence perception, and create mental anchors. These five strategies are based on neuroscience and behavioral psychology—and they work.
- Neural Framing: Align Your Message with Their Reward System
The brain prioritizes information that links to perceived reward. Instead of starting with the science, start by identifying what the KOL values most—clinical outcomes, speed, patient quality of life.
“If this therapy helps reduce relapse rates by even 10%, how does that change your approach to patient management?”
Why it works: This activates the brain’s reward circuitry, priming them to engage more deeply with the data you’re about to deliver.
- The Zeigarnik Principle: Use Incomplete Ideas to Drive Follow-Up
The brain remembers unfinished tasks better than completed ones. Introduce an open concept or emerging insight—and intentionally leave it unresolved.
“We’re still analyzing biomarker subgroup data, but one signal is showing a surprising trend. I’ll share it as soon as we have more clarity—I’d love your thoughts when that’s ready.”
Why it works: This triggers cognitive tension, prompting the KOL to stay mentally engaged and anticipate follow-up.
- Dual Coding: Mix Abstract and Visual Anchors
Neuroscience shows that combining verbal explanation with a visual cue significantly improves memory retention. Don’t just explain a mechanism—illustrate it, analogize it, or sketch it live.
“Think of this therapy as a GPS-guided strike: CD19 is the target, but the immune environment is the satellite feed. If that’s misaligned, precision is lost.”
Why it works: This uses both verbal and visual pathways in the brain, increasing comprehension and stickiness of the message.
- Socratic Tensioning: Ask Questions That Shift Belief, Not Confirm It
Use purposeful, thought-provoking questions that challenge existing mental models.
“We’ve historically stratified patients based on phenotype—what if immune profiling ends up being a more predictive variable?”
Why it works: These questions activate the prefrontal cortex and prompt cognitive reappraisal, which is key to shifting long-held clinical beliefs.
- Cognitive Echoing: Use Their Own Words as Anchors
People are more receptive to those who mirror their language and thought patterns. Pay close attention to how KOLs frame problems—and reflect that language back later.
If they say, “I’m focused on long-term safety,” later say:
“That’s why the long-term tolerability profile stood out to me too—especially for patients in your setting.”
Why it works: Mirroring creates subconscious rapport, builds trust, and makes the conversation feel tailored and collaborative.
Charisma Without the Spotlight
Charisma in the MSL world isn’t about taking over the room—it’s about making the other person feel like they own it. A charismatic MSL isn’t necessarily the loudest, funniest, or most polished. They’re the ones who make complex ideas feel simple, who listen actively, and who leave a lasting sense of value.
Professionalism and personality aren’t mutually exclusive. The best MSLs bring a human touch to scientific exchange—one that encourages clinicians to speak candidly, ask more questions, and view the MSL not as a script-reader, but as a trusted collaborator.
Metrics vs. Mindshare
It’s easy to measure calls made, slides shown, and insights logged. But influence—the kind that gets KOLs thinking differently—lives beyond metrics.
Did your conversation shift a perspective?
Did it spark curiosity?
Did it give the KOL something they wanted to follow up on?
Those are your real KPIs. And they’re the ones that turn meetings into long-term collaboration.
The Real Takeaway
Being an exceptional MSL today isn’t just about scientific expertise—it’s about mental agility, emotional intelligence, and strategic communication. It’s about getting into the rhythm of your KOL’s thinking and knowing how to leave a lasting imprint.
Sometimes the most powerful question isn’t “Did I present all the slides?” but “Did I spark something they’ll think about after I leave?”
Because when you can do that—you’re not just in the meeting. You’re in the mind.
About the Author
Aya Selim is a Pharmacist and Senior Medical Science Liaison with over five years of global Medical Affairs experience, specializing in Oncology, Hematology, and Autoimmune Diseases. She has supported CAR T-cell development in these areas and led clinical trial engagement across the U.S. and Europe. Having lived in multiple countries, Aya deeply values diversity and is passionate about continuous learning and growth.
Aya brings extensive expertise in Key Opinion Leader engagement, clinical trial strategy, and the creation of impactful medical content. She excels at translating complex data into actionable insights and has collaborated with leading organizations, including Syneos Health, Bristol Myers Squibb, IQVIA, Novartis, and Johnson & Johnson, among others.
Driven by curiosity and a passion for innovation, Aya leverages technology to streamline workflows, create unique medical content, enhance scientific communication, and improve strategic execution. Her work bridges science, storytelling, and strategy, with the ultimate goal of advancing the future of medicine through meaningful and impactful medical engagement.
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