Faculty mentor/PI email address
jim010@aol.cm
Is your research Teaching and Learning based?
1
Keywords
Stroke mimics; Stroke chameleons; Cognitive scaffolding; Schema activation; Emergency Medicine education;
Date of Presentation
5-6-2026 12:00 AM
Poster Abstract
Background
Stroke mimics and stroke chameleons contribute significantly to diagnostic uncertainty in Emergency Medicine. Traditional teaching often relies on enumerating examples, yet residents struggle to internalize these distinctions.
Objective
To present a conceptual teaching framework that maps stroke mimics to false positives and stroke chameleons to false negatives, leveraging pre-existing diagnostic schemas.
Methods
Using representative cases—including hypoglycemic hemiparesis and spinal epidural lipomatosis presenting as stroke mimic—we developed an explanation for residents involving framing mimics as false positives and chameleons as false negatives.
Results
Framing mimics as false positives and chameleons as false negatives activates existing learner schemas related to sensitivity and specificity, reducing cognitive load and enhancing retention. In a conference setting, residents demonstrated improved conceptual clarity and threshold reasoning.
Conclusions
Educational strategies that leverage pre-existing scaffolding facilitate deeper integration of complex diagnostic concepts. Reframing stroke evaluation through false positive/false negative reasoning transforms stroke teaching from memorization to recall and application to a previously learned schema.
Disciplines
Cardiovascular Diseases | Diagnosis | Medical Education | Medicine and Health Sciences
Stroke Mimics and Stroke Chameleons: Leveraging the False Positive/False Negative Diagnostic Schema in Resident Teaching
Background
Stroke mimics and stroke chameleons contribute significantly to diagnostic uncertainty in Emergency Medicine. Traditional teaching often relies on enumerating examples, yet residents struggle to internalize these distinctions.
Objective
To present a conceptual teaching framework that maps stroke mimics to false positives and stroke chameleons to false negatives, leveraging pre-existing diagnostic schemas.
Methods
Using representative cases—including hypoglycemic hemiparesis and spinal epidural lipomatosis presenting as stroke mimic—we developed an explanation for residents involving framing mimics as false positives and chameleons as false negatives.
Results
Framing mimics as false positives and chameleons as false negatives activates existing learner schemas related to sensitivity and specificity, reducing cognitive load and enhancing retention. In a conference setting, residents demonstrated improved conceptual clarity and threshold reasoning.
Conclusions
Educational strategies that leverage pre-existing scaffolding facilitate deeper integration of complex diagnostic concepts. Reframing stroke evaluation through false positive/false negative reasoning transforms stroke teaching from memorization to recall and application to a previously learned schema.