If you live with anxiety, the fear is obvious: the machine measures fear, so you will fail. That reasoning is fair for the folklore version of a polygraph, and it is one of the reasons we use eye-tracking instead.
Here is what anxiety does and does not do to a credibility test, and what to tell your examiner in advance.
A polygraph measures arousal: breathing, pulse, blood pressure and skin conductance. Anxiety produces arousal. That is the honest basis of the concern, and it is why anxious examinees have always been considered a challenge for the instrument.
Well-run polygraph examinations manage this with comparison questions and a careful pre-test, but the concern never fully goes away.
EyeDetect® does not record arousal at all. It records involuntary eye behaviour — pupil dilation linked to cognitive load, blink rate and timing, fixation, reading behaviour and response latency — while you answer true/false statements on a screen.
The signal it looks for is mental effort, and deciding to lie takes more effort than telling the truth. Being frightened does not create that pattern, and there is no examiner in the room reading your face.
Some things genuinely matter, and none of them is the anxiety itself. Severe sleep deprivation, alcohol or recreational drugs, untreated eye conditions and certain medications — including some sedatives and anticholinergics that alter pupil response — can reduce data quality.
Disclose them on the suitability form. It does not usually stop the test; it tells your examiner how to prepare, and occasionally we rebook rather than run a test we cannot score cleanly.
Practical things help more than reassurance. We test at home where possible, keep the room quiet, run a practice section so the pace is familiar, and allow breaks in the pre-test discussion. You see every question before the test starts, so there are no surprises.
If you have panic attacks, tell us in advance. We can build in pauses and, if a panic episode does interrupt the examination, we stop and resume rather than pushing through with unusable data.
Anxiety is one of the most common things people disclose when they book, and the appointment is straightforward to adapt. Testing at home rather than an unfamiliar venue removes a large part of it. So does an early slot if anticipation builds through the day, extra time before the recorded section, and repeating the practice block as many times as you want.
During the examination itself you are looking at a screen rather than being observed across a desk, which most anxious people find markedly easier than they expected. There are breaks between blocks, and you can stop entirely at any point without giving a reason.
There are situations where the honest advice is to rearrange. Acute illness, a migraine, an overnight shift with no sleep, or a change in medication started in the last few days all reduce concentration, and weak concentration produces weak data rather than a fair result.
Rearranging costs you nothing in this situation and gives you a better test. If you turn up and it becomes clear on the day that conditions are poor, we will say so before running anything rather than take a result we would not stand behind.
No. Eye-tracking testing measures cognitive load rather than arousal, so feeling anxious does not produce a deceptive outcome.
Never stop prescribed medication for a test. Take it as normal and list it on the suitability form so your examiner can account for it.
Breaks are fine in the pre-test discussion, and if you need to stop during the examination we pause and resume rather than continue with poor data.
It is not compulsory, but it genuinely helps. It affects how we pace the appointment and whether we recommend testing that day. It does not change the questions or how the data is scored.
Panic is not read as deception. If it stops you concentrating on the statements, the affected block can be paused and repeated once you are settled.
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