EyeDetect®
The world’s first scientifically validated ocular-motor deception test. A non-contact, computer-based exam analyzing involuntary eye behavior in roughly 15–30 minutes.
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Science that sees what the eyes reveal
Converus builds scientifically validated credibility assessment technologies. As an authorized Service Partner, we deploy EyeDetect® and EyeDetect+® for organizations and individuals who need faster, more objective truth verification.
About Converus
With truth—protecting integrity at scale.
Converus (from Latin roots meaning “with truth”) is headquartered in Lehi, Utah. The company develops tools that help countries, corporations, and communities reduce corruption, crime, and threats through modern credibility assessment.
EyeDetect+®
The automated polygraph: ocular data plus physiological channels similar to traditional polygraph—impartial scoring, less invasive sensors, results typically available in minutes after the exam.
VerifEye®
A mobile credibility solution for rapid remote verification scenarios—part of Converus’s broader product family used worldwide.
How EyeDetect works
Ocular-motor deception testing (ODT)
Developed by scientists including University of Utah researchers who previously advanced computerized polygraph methods, EyeDetect uses a high-definition infrared eye-tracking camera to measure involuntary responses while the examinee answers true/false (or yes/no) questions on a computer.
- Pupil dilation and related autonomic signals
- Blink rate and gaze fixations
- Reading behavior and response timing
- ~60 measurements per second of each eye
- Algorithm produces a Converus Credibility Score
Deceptive answering tends to increase cognitive load and emotional arousal—patterns that leave measurable traces in eye behavior. Tests are standardized and fully automated for consistency.
Typical EyeDetect session
Preparation
Examinee is seated at the EyeDetect station; calibration of the eye tracker.
Automated Q&A
True/false or yes/no protocol administered by computer—no examiner interrogation mid-test.
Analysis & score
Ocular and response data scored by algorithm; credibility outcome available rapidly.
EyeDetect+
The next evolution of the polygraph.
EyeDetect+ converges standard EyeDetect ocular measurement with polygraph-style physiological sensors and automated protocols—creating what credibility experts describe as a comprehensive automated polygraph system.
What it measures
- Ocular-motor channels (pupil, blink, fixation, etc.)
- Physiological activity similar to traditional polygraph
- Enhanced data channels and modern sensors
- Less-invasive alternatives to classic cardio cuff discomfort
Why organizations choose it
- Impartial, computer-driven administration and scoring
- Reported accuracy in the high 80s to low 90s depending on test type
- Results available far faster than multi-hour traditional workflows
- Complements—or in some contexts replaces—legacy polygraph
Does EyeDetect replace the polygraph?
Not always—and it doesn’t need to. EyeDetect is often used alongside polygraph: a fast first-stage screen, with traditional methods for deeper event-specific follow-up. EyeDetect+ is purpose-built for customers who require polygraph-class physiology with modern automation. Deception Detection can help you choose the right protocol.
Compare
At a glance
| Capability | EyeDetect | EyeDetect+ | Traditional polygraph |
|---|---|---|---|
| Primary signal | Ocular-motor | Ocular + physiology | Cardiovascular, respiratory, EDA |
| Administration | Fully automated | Automated polygraph | Examiner-led |
| Typical duration | ~15–30 minutes | Under ~1 hour workflow | Often 2–4 hours |
| Scoring | Algorithm / credibility score | Automated hybrid scoring | Examiner interpretation |
| Invasiveness | Non-contact eye tracking | Less invasive sensors | Multiple attached sensors |
| Best fit | Screening & scalable testing | Automated polygraph needs | Event-specific deep exams |
Accuracy figures and protocols vary by test type and published study. Converus and independent researchers have published extensive peer-reviewed work on ocular-motor deception testing since 2009. Ask us for the latest technical white papers relevant to your use case.
Additional testing method
Successive hurdles with traditional polygraph
Beyond a single exam, Deception Detection offers a successive hurdles program: staged credibility assessment that pairs modern ocular screening with the traditional polygraph instrument for deeper, issue-focused follow-up—and higher decision confidence when independent tests agree.
What “successive hurdles” means
In credibility assessment, a successive-hurdles (or multi-stage) strategy uses a first test as a screen, then follows unresolved or flagged issues with a second, more focused examination. The American Polygraph Association’s Standards of Practice describe screening techniques as methods that should be used in a successive-hurdles approach—additional testing with validated methods when the screening examination is not favorably resolved.
In classic polygraph practice, that often means a multi-issue screening exam first, then a single-issue (specific-issue) polygraph on the question that scored most poorly. Single-issue testing is generally more accurate than broad multi-issue screening alone; the second “hurdle” is designed to reduce false positives and sharpen the decision on what actually matters.
Why independent tests matter
Successive hurdles is most powerful when the two stages measure different behavioral or physiological channels—so agreement is not just repeating the same measurement twice. Converus emphasizes this independence for EyeDetect + polygraph programs:
- Traditional polygraph — cardiovascular, respiratory, and electrodermal (skin conductance) activity under structured question formats
- EyeDetect — ocular-motor and reading/response behaviors tied to cognitive load (pupil, blink, fixation, and related signals)
Running two polygraphs back-to-back does not create the same independence benefit as combining ocular-motor testing with traditional polygraph instrumentation.
Stage 1 — Screen
Fast, standardized screening (often EyeDetect or a multi-issue protocol) to identify whether issues require deeper work—and which topics matter most.
Stage 2 — Traditional polygraph hurdle
On unresolved or high-priority issues, a traditional polygraph instrument exam—frequently single-issue / event-specific—to apply validated polygraph technique where precision counts.
Stage 3 — Integrated decision
Results are interpreted in context: agreement across independent methods strengthens outcome confidence; divergence guides further investigation or legal strategy—not a simplistic “pass/fail TV moment.”
Outcome confidence
When independent methods agree
Converus describes the combination of EyeDetect and polygraph in a successive-hurdles model as a scientifically effective way to improve testing results, reporting outcome confidence on the order of approximately 97–99% when both independent tests point the same direction (figures depend on base rates, protocol, and Bayesian modeling assumptions used in the successive-hurdles literature—not a guarantee in every individual case).
That framing is often compared to strengthening an evidentiary argument: two independent measurement systems, one conclusion.
Who uses this model
Practical applications we support
- Pre-employment and public-safety screening pipelines
- Criminal defense and investigative follow-up after a screen
- PCSOT-style and multi-issue programs that resolve flags with focused testing
- High-stakes private matters where a second, instrumented polygraph hurdle is requested
- Attorney-directed strategies that benefit from independent corroboration
Offered at Deception Detection LLC.
As examiners equipped for both Converus EyeDetect/EyeDetect+ and traditional polygraph instrumentation, we can design a successive-hurdles plan tailored to your case—screen first, then traditional polygraph on the issues that remain. Contact us to discuss protocol selection, timing, and who receives the report.
Sources & further reading
- American Polygraph Association. Standards of Practice (screening examinations; successive-hurdles approach when screening is not favorably resolved). polygraph.org PDF · summary: polytest.org overview
- Converus. Polygraph & Successive Hurdles — independence of polygraph vs. EyeDetect measures; successive testing and reported outcome-confidence framing. converus.com/polygraph-successive-hurdles
- Converus. Benefits of Using Successive Hurdles Testing in Court Cases (references Handler & Honts screening / successive-hurdles discussion). PDF
- Handler, M. (presentation for Converus). Polygraph Expert Explains… Successive Hurdles — educational discussion of multi-stage confidence (video). YouTube
- Krapohl, D. J., et al. / APA literature on validated techniques — single-issue vs. multi-issue accuracy and successive-hurdles rationale in screening. Validated techniques overview (PDF)
- Industry practice notes on pre-employment successive hurdles (multi-issue screen → specific-issue polygraph). e.g. polytest.org pre-employment
Accuracy and “outcome confidence” figures depend on test type, base rates, and study design. Successive hurdles improves decision strategy; it is not a guarantee of courtroom admissibility (rules vary by jurisdiction). This page is educational and not legal advice.
In the field
The station that sees what words conceal.
From infrared eye tracking to automated polygraph channels, Converus equipment delivers standardized credibility assessment — now available through your local Service Partner.
Book a demo briefingDeploy modern credibility assessment.
Talk with our examiners about EyeDetect+, traditional polygraph, or a successive-hurdles program.