Nöra — AI Cognitive Screening Agent

Early cognitive screening
through natural conversation

Nöra is a real-time voice AI agent that conducts standardized cognitive tests through natural dialogue — making Alzheimer's pre-screening accessible to anyone, anywhere, in any language.

What is Nöra?

Nöra is an AI-powered cognitive screening assistant that talks with users naturally — just like a clinician would — and guides them through 4 standardized tests to assess cognitive health.

Users simply speak to Nöra. The agent listens, asks follow-up questions, shows images, and records responses. All scores are computed deterministically in the backend — the AI never calculates, it only collects.

4 Cognitive Tests

8+ AI Agents

Multi Language

Who is this for?

👴

Elderly individualsAt-home screening without a clinic visit

👨‍👩‍👧

Family membersEarly warning for loved ones' cognitive health

🏥

Healthcare providersPre-screening triage before clinical assessment

🌍

Underserved communitiesMulti-language access regardless of geography

Why It Matters

Social impact & public health value

Early detection of cognitive decline is a global public health priority.

How It Works

Simple as having a conversation

The user talks to Nöra naturally. Nöra guides through 4 tests and delivers scored results.

🔐

Login

🎤

Talk to Nöra

Real-time voice conversation, interruptible

🧪

4 Tests

Verbal, memory, visual, orientation

📄

Results

Risk assessment + PDF report

Cognitive Tests

4 standardized screening tests

Each targets a different cognitive domain. All scored by backend algorithms — never by the LLM.

🗣️

Verbal Fluency

Say as many words as possible starting with a given letter in 60 seconds.

60s timed

📖

Story Recall

Nöra tells a story, user retells it. Backend performs similarity analysis.

Gemini 3.1 Flash Lite

🖼️

Visual Recognition

Nöra shows 3 dynamically generated images. User identifies each.

Imagen 4

🧭

Orientation

Nöra asks 7 time/place questions: date, day, city, etc.

7 questions

Technology

Built with Google AI & Cloud

Production-ready, fully deployed on Google Cloud Platform.

🤖 Gemini Live API

🎨 Imagen 4

⚡ Gemini 2.5 Flash

📝 Gemini 3.1 Flash Lite

⚛️ React + Vite

🚀 Node.js + Express

🗄️ PostgreSQL + Prisma

🐳 Docker

☁️ Cloud Run

🔐 Secret Manager

📦 Artifact Registry

🗃️ Cloud SQL

Architecture

System overview

Multi-agent orchestration with deterministic scoring and real-time WebSocket streaming.

User → React Frontend (Cloud Run) → Node.js Backend (Cloud Run) → Gemini Live API · Imagen 4 · Cloud SQL · Secret Manager

Key Design Decisions

Why it works

Critical architectural choices for reliability and clinical safety.

🎯 Deterministic Scoring

The LLM never calculates scores. All scoring is algorithmic in backend — zero hallucination risk in medical assessments.

🔌 WebSocket Proxy

Node.js proxy bridges browser ↔ Gemini Live API, handling auth, CORS, and session persistence server-side.

⏱️ Server-Side Timers

LLMs can't track time reliably. Test timers run on backend, events injected into the live session.

🔒 Security-First

JWT auth, rate limiting, input validation, tool-call sanitization for stable sessions.

Try & Explore

Scan to access — all links below

Live Demo

nora.knowhy.app

Source Code

github.com/knowhycodata/knowhy-nora

Demo Video

youtu.be/m4iG0bB2zdI

Nöra AI Cognitive Screening Agent

Early cognitive screeningthrough natural conversation