Evidence-Based Medicine

David Louis, MD David Louis, MD (1 Posts)

Resident Physician Contributing Writer

Brown University


David was born and raised in Parsippany, New Jersey. He obtained his Bachelors of Science in Microbiology at New Mexico State University followed by both his Masters in Biomedical Science (MBS) and Doctor of Medicine (MD) from Geisinger Commonwealth School of Medicine. He is currently an Internal Medicine resident at Brown University, where he has invested himself in clinical research regarding coronary and peripheral artery revascularization, He is pursuing a career in interventional cardiology.




Figure 1. “Relationship between System 1 and System 2 thinking.” Daily encounters lead to the activation of System 1 or System 2 thinking. Problems demanding higher levels of thought either directly or indirectly activate System 2. Repetitive exposure decreases the demand for System 2 thinking and increases both productivity and the risk for error.

Systems-Based Thinking: How Subconscious Thought Affects Medical Decision Making

System-based thinking describes a set of subconscious thought processes aptly named System 1 and System 2. The profession of medicine relies heavily on SBT — the ability to rapidly diagnose, treat, and improvise during stressful situations is dependent on these systems, which develop and mature throughout one’s training.

Brian Secemsky, MD Brian Secemsky, MD (2 Posts)

Resident Editor Emeritus (2015-2016)

UCSF One Medical Group


Brian Secemsky, MD is an internal medicine physician currently practicing and teaching outpatient medicine in San Francisco, CA. His interests include preventive health, patient education and medical journalism. The goal of his writing is to expose those who are interested in medicine to various health care topics and to break down the jargon of medical literature into something that everyone can understand and learn from. You can find him on Twitter @BrianSecemskyMD or the website http://www.briansecemskymd.com