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Eye tracking can reveal an unbelievable amount of information about you:
Eye tracking technology is starting to pop up more and more, keeping track of where you're looking and how your pupils and irises are reacting for a variety of different purposes. It doesn't require particularly complex technology; a HD video camera that can watch your face is enough to collect the data.
But according to a 2020 research review, this data can divulge an extraordinary amount of information about you when it's crunched through advanced data analysis systems. "Our analysis of the literature," reads the paper's abstract, "shows that eye tracking data may implicitly contain information about a user's biometric identity, gender, age, ethnicity, body weight, personality traits, drug consumption habits, emotional state, skills and abilities, fears, interests, and sexual preferences."
That's not all; "Certain eye tracking measures," says the review, "may even reveal specific cognitive processes and can be used to diagnose various physical and mental health conditions." According to Grandview Research, "the analyzed data is used to study a myriad of psychiatric and neurological conditions, such as autism spectrum disorder (ASD), attention deficit hyperactivity disorder (ADHD), obsessive-compulsive disorder (OCD), Parkinson's, Alzheimer's, and Schizophrenia, among others."
[...] They can also track the length of fixations, rapid eye motions between fixations, smooth pursuit movements and things like the acceleration and maximum speed of your eye movements.
They can analyze your eyelids, watching how far open your eyes are, how often you're blinking and how long your eyes are staying shut when you do. They can take note of redness and see how watery or dry your eyes are through reflections. They can measure the dilation of your pupils – famously an indication of sexual interest or arousal, but also linked to drug use, fear and certain types of brain damage. They can note your eye color and iris texture.
[...] Biometric identity can be established using a combination of things. The colors and patterns in your irises, for starters, can be used almost like a fingerprint. But so can your pupil reactivity, your gaze velocity and the trajectories your eyes take when following a moving object; mechanical and brain function differences make these things unique to you.
Then there's mental workload – an area in which eye tracking sometimes performs better than an EEG. Pupil dilation can be used as a measure of task difficulty and mental effort. Your blink rate correlates with dopamine levels, signifying learning and goal-directed behavior.
[... The full study – What Does Your Gaze Reveal About You? On the Privacy Implications of Eye Tracking – is available for free at Springer Link.
(Score: 1, Insightful) by Anonymous Coward on Thursday April 08 2021, @12:25PM (4 children)
It's already 'discovered' that following people's browsing history makes little difference in their shopping impulses. This eye tracking is also mostly another moot point in this regard. And since there is no money here, who actually cares?
The only thing I can think of is actual diagnosis for mental issues like phobias, depression, and similar. Aside from this, this is like tracking your DNA - once thought to bring instant all-knowing information about you but now mostly just useless data that only really is applicable to that person.
(Score: 4, Funny) by SomeGuy on Thursday April 08 2021, @12:51PM
Higher up marketing managers who only believe what they read in shiny marketing brochures. It PROMISES there will something they can make money with in some vauge abstract way. Say, do you want a side of AI with your AI, AI, and AI?
If this eye tracking detects someone who rolls there eyes at every idiot, then it automatically signs them up for consumer re-education.
(Score: 1, Insightful) by Anonymous Coward on Thursday April 08 2021, @02:20PM (1 child)
I expect that soon eye-tracking videos will be used to "prove" that women were being "eye raped" by men who dared to glance at them for a few milliseconds.
The future's so bright, I gotta wear shades.
(Score: 2) by deimtee on Friday April 09 2021, @12:08AM
You can't wear shades no matter how bright the future. Wearing shades is just you attempting to hide your criminal eye-raping nature.
No problem is insoluble, but at Ksp = 2.943×10−25 Mercury Sulphide comes close.
(Score: 2) by The Vocal Minority on Friday April 09 2021, @05:08AM
When was this "discovered" and by whom? Not to put too fine a point on this but it sounds like complete bullshit.