Understand the research
Dementia-Seizure Subtype Atlas
Explore the evidence across five dementia types. Read about clinical events and EEG findings, with sources, limitations, and unanswered questions alongside the findings.
Explore the atlasSeizure clarity in dementia
Seagull Health helps people describe concerning episodes, understand dementia-specific research, and bring that knowledge into healthcare tools and services.
Have an episode to describe? Explore Public DSEF →
Understand the research
Explore the evidence across five dementia types. Read about clinical events and EEG findings, with sources, limitations, and unanswered questions alongside the findings.
Explore the atlasDescribe one episode
Organize what was observed and explore how the reported pattern relates to published research. Receive a free educational summary with supporting sources. It cannot determine whether an event was a seizure.
Explore Public DSEFExplore an organizational use
License and customize DSEF for your platform, service, or program. Adapt responses and summaries to your audience, with supporting evidence and limitations preserved.
Explore the organizational offerTrain a team
A ready-to-run workshop that teaches staff to notice an unusual episode, write down what they actually saw, and route it to the right person, across five dementia types. Free to work through; a $199 facilitator license to lead it.
Open the workshopWhy this matters
A pause in speech, a change in response, or an unusual movement can be hard to interpret when someone is living with dementia. Seizures are one possible explanation. Illness, fainting, medication effects, sleep, and dementia-related changes can also matter.
A memory-clinic study found that some subtle seizure events had been noticed but attributed to dementia. Its findings show a recognition problem in that setting; they do not establish the cause of any one person's episode.
Illustrative example. This describes an invented episode and is not a DSEF result.
What someone noticed
“She stopped talking and stared ahead.”
That observation starts the account. Timing, responsiveness, recovery, and what remains unknown give it context.
An account with more detail
“During lunch, she stopped speaking and stared ahead. She did not answer two questions for about 40 seconds. Then she resumed speaking. A similar episode was noticed yesterday.”
This account preserves what happened without assigning a cause. Whether she returned fully to her usual state remains a question to clarify.
Public DSEF helps organize a reported episode and its context into an educational summary. See how Public DSEF works →
DSEF for Organizations
Help your users explore possible seizure-related episodes in people with dementia. License and customize DSEF to complement your platform, service, or program.
Tailor the wording, level of detail, and information included in responses and summaries while preserving supporting evidence and limitations.
DSS, DSEF, and SeizureSafe support Seagull's work with reported episodes. The atlas provides a separate place to explore dementia-specific research.
Describe the observations
The Dementia Seizure Spectrum™ provides shared language for describing changes in movement, awareness, behavior, and recognized seizure presentations.
Explore DSS →Explore the reported pattern
The Dementia Seizure Evaluation Framework checks whether enough information is available and compares the reported pattern with published research, keeping sources and limitations visible.
Explore Public DSEF →Support follow-through
Practical guidance connects recognition, response, documentation, and advocacy. Clinical decisions and emergency responses remain with the appropriate people and local care pathways.
Explore SeizureSafe →Who stands behind the work
Seagull Health was founded by Russ Barker, MHA, DHSc(c), whose family experience and 25 years in long-term care shaped his doctoral research into seizure recognition in dementia.
Read the founder's background →Seagull publishes the atlas with evidence-review dates, study limitations, and a route for corrections. The atlas discloses AI-assisted preparation and has not undergone independent clinical peer review.
Read the atlas evidence methods → Explore all public resources →