Lumigraph: See What Your Mind Remembers

Inspiration

We started with a question that felt almost too simple: why can't we see our own memories?

The brain's visual cortex fires identically whether you're seeing something real or imagining it. Yet that internal cinema — the one that holds your grandmother's face, the smell of rain on hot pavement, the feeling of a place you'll never visit again — has always been completely invisible. No tool has ever let you look at it, measure it, or save it before it fades.

We also kept returning to a harder truth: 1 in 3 people will develop dementia. The first casualty isn't facts. It's the ability to picture the people you love.

That felt like the design problem worth solving.

What We Built

Lumigraph is a soft EEG headband and companion app that does two things no wearable has done before.

Transcribes Scent-Triggered Memories

When your olfactory cortex fires a recognition spike, Lumigraph captures the associated mental imagery and renders it as a high-definition visual or a 10-second video clip, filtered only for positive emotional states through Amygdala and HRV cross-referencing.

Trains Your Brain's Internal Visual Acuity

Lumigraph introduces a newly defined sense called Internal Visual Acuity, which measures how vividly and stably your mind constructs images.

Using occipital lobe activation patterns, Lumigraph produces a daily VisualScore and prescribes targeted exercises designed to strengthen visualization over time.

The new sense we are unlocking is Internal Visual Acuity. This capability has previously been invisible and unmeasurable outside laboratory environments, yet it is deeply connected to memory retention, emotional regulation, and cognitive health.

Who It's For

Lumigraph is designed primarily for people experiencing early cognitive decline and their caregivers, but its core use cases extend to a wider audience.

Margaret, 72

Margaret uses Lumigraph each morning to practice holding her daughter's face in her mind. Her caregiver watches her retention window grow slowly, two to three seconds at a time.

Darius, 28

Darius works with a therapist who uses Lumigraph's shared dashboard during CBT sessions focused on imagery rescripting. The system helps identify exactly when his visualization weakens during positive memory recall.

Priya, 19

During onboarding, Priya discovers she has aphantasia, meaning she cannot visualize mental imagery. Instead of framing this as a deficit, Lumigraph celebrates her cognitive profile and offers alternative memory techniques designed specifically for non-visual thinkers.

How We Designed It

We designed five core screens in Figma.

Screen	Purpose
Onboarding & Baseline Test	Warm, low-friction pairing and the user's first VisualScore
Home Dashboard	Daily score, streaks, and session prompts
Session Screen	Guided visualization exercises with a live headband signal indicator
Insights Page	Weekly vividness graph, memory retention curve, and processing breakdowns
Memory Garden	Our hero screen where captured memories grow stronger over time

The Memory Garden

The Memory Garden became the emotional centerpiece of the product.

Early concepts were too abstract. We kept asking ourselves a simple question:

What does it feel like to watch a memory get stronger?

The final design treats each saved memory as a growing plant, rooted in the moment it was first captured. As visualization strength improves and retention increases, the plant grows and blooms inside the user's personal memory landscape.

Safeguards We Built In

Extra perception comes with real responsibility. Lumigraph addresses this directly.

Consent-first sharing
Caregiver and therapist dashboards require explicit user opt-in and access can be revoked at any time.

No raw neural data stored
Only processed VisualScores are saved. Brainwave data never leaves the device unprocessed.

Distress detection
If a session triggers elevated stress patterns, Lumigraph pauses immediately and surfaces a grounding exercise.

Not a diagnostic tool
The interface clearly distinguishes wellness tracking from clinical diagnosis.

Caregiver controls
Session frequency can be managed by caregivers to prevent cognitive fatigue in users experiencing dementia.

What We Learned

Speculative design lives or dies by emotional grounding.

It is easy to build something that feels futuristic. It is much harder to build something that feels necessary.

The constraint that pushed our work the furthest was asking one simple question:

What would it mean for Margaret if this worked?

Every design decision passed through that lens.

We also discovered that the positivity filter — the Amygdala and HRV gate that prevents recording during stress or grief — is not just a safety feature. It is the emotional core of the product and what makes Lumigraph feel supportive rather than invasive.

What We Will Work On in the Future

Lumigraph is currently a weekend prototype, but the problems it addresses are long-term.

Hardware Refinement

Partner with neurotechnology researchers to move the Aura Band from speculative concept to a clinically validated EEG device, improving signal accuracy across hair types, skin tones, and head shapes.

Longitudinal Studies

Run structured studies with dementia caregivers and early cognitive decline patients to determine whether improvements in VisualScore correlate with real-world memory retention outcomes.

Expanding the Sense Library

Internal Visual Acuity is only one invisible sense. Future research may explore additional dimensions such as:

proprioceptive drift
interoceptive clarity
temporal perception

These signals could expand Lumigraph into a broader human perception platform.

Richer Memory Garden Interactions

Allow users to annotate, share, and revisit memories with loved ones, transforming the Garden into a collaborative memory archive rather than a personal one.

Aphantasia-First Design Track

Priya's experience revealed the need for a dedicated path for non-visual thinkers. Future versions will include onboarding and training programs developed in collaboration with aphantasia research communities.

Therapist Tooling

Expand the clinician dashboard with session comparison tools, exportable reports, and integration with CBT workflows so Lumigraph becomes a clinical companion rather than a standalone tool.

Challenges

Designing for a sense with no existing visual language required building our metaphor system, the Memory Garden, almost entirely from scratch.

Balancing the clinical utility of the caregiver dashboard with the warmth required for a personal wellness tool created constant tension between two design tones.

Finally, communicating a speculative hardware device entirely through a 2D interface required careful design decisions to ensure the product felt grounded and believable rather than like science fiction.