Submitted
2025 Global Health Challenge

SGMA

Team Leader
Holly Hake
SGMA is a fast, online tool that measures how well someone learns and remembers. In just 8 minutes, users match simple pairs—like a picture and a name. From their performance, SGMA calculates how quickly they typically forget. It combines two technologies: a memory model that uses accuracy and response time to estimate memory strength, and an adaptive system that adjusts...
What is the name of your organization?
MemoryLab Health
What is the name of your solution?
SGMA
Provide a one-line summary or tagline for your solution.
The Seattle-Groningen Memory Assessment (SGMA) is a model-driven memory assessment capable of frequent remote testing.
In what city, town, or region is your solution team headquartered?
Groningen
In what country is your solution team headquartered?
NLD
What type of organization is your solution team?
Hybrid of for-profit and nonprofit
Film your elevator pitch.
What specific problem are you solving?
Most tools for assessing memory cannot be used frequently. But high-frequency testing is essential for detecting early cognitive changes. The problem is methodological—no existing tool combines accessibility, reliability, and resistance to practice effects. The Seattle-Groningen Memory Assessment (SGMA) fills this gap. It is a home-based tool proven to support high-frequency testing. SGMA resists training effects, delivers consistent results across versions, and measures a core computational property of memory, offering stable, meaningful insights over time. This kind of tool has been missing, limiting progress in key areas. It has slowed Alzheimer’s research, complicated concussion recovery, and left us in the dark about how drugs and conditions like Long COVID affect memory. To make real progress, memory tests must be both accurate and practical. SGMA is self-guided, remote, and designed for real-world use. It removes a critical barrier to data-driven, equitable care.
What is your solution?
SGMA is a fast, online tool that measures how well someone learns and remembers. In just 8 minutes, users match simple pairs—like a picture and a name. From their performance, SGMA calculates how quickly they typically forget. It combines two technologies: a memory model that uses accuracy and response time to estimate memory strength, and an adaptive system that adjusts to each user’s learning speed. This creates a personalized task that is both intuitive and precise. Because SGMA is short, repeatable, and web-based, it can track memory over time.
Who does your solution serve, and in what ways will the solution impact their lives?
SGMA is built for people who need frequent, accessible memory testing—especially those underserved by traditional healthcare. This includes individuals with conditions like early-onset Alzheimer’s, who could benefit from treatments such as transcranial magnetic stimulation but often lack access to specialists. SGMA enables remote, automated assessments, expanding access to care. It also supports children, adolescents, and adults with chronic neurological conditions that cause day-to-day memory changes. These groups need more frequent monitoring than standard tools can offer. SGMA fills this gap with validated, high-frequency testing for users aged 5 to 85. For those in rural areas or “neurology deserts,” SGMA removes geographic barriers. Its remote design ensures that memory care reaches those who would otherwise go without. Whether managing a complex condition or unable to visit a clinic regularly, SGMA brings reliable memory testing directly to the user.
Solution Team:
Holly Hake
Holly Hake
Postdoctoral Researcher
Hedderik van Rijn
Hedderik van Rijn
Andrea Stocco
Andrea Stocco
Hilco Boerlage
Hilco Boerlage