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During my twenties, I observed my elderly relative through the pane of a café. I felt dumbstruck – she had passed away the year before. I stared for a moment, then remembered it couldn't possibly be her.

I'd encountered similar situations throughout my life. Periodically, I "knew" someone I was unacquainted with. Sometimes I could promptly pinpoint who the unfamiliar person resembled – for instance my elderly relative. Other times, a countenance simply had a vague familiarity I couldn't recognize.

Exploring the Range of Face Identification Abilities

Recently, I started wondering if different individuals have these odd encounters. When I questioned my acquaintances, one commented she often sees persons in unpredictable places who look recognizable. Others sometimes mistake a stranger or celebrity for someone they know in real life. But some described completely different responses – they could readily recognize people they'd met and people they hadn't.

I felt curious by this range of experiences. Was it just desire that made me see my elderly relative that day – or some kind of brain malfunction? Studies has found we spend about approximately 900 seconds of every hour looking at faces – do we just have inaccuracies sometimes? I was starting to understand that we can all see the same face but not experience the same thing.

Understanding the Spectrum of Facial Recognition Capacities

Researchers have created many evaluations to measure the skill to recall faces. There exists a extensive variety: at one side are superior face rememberers, who recall faces they have seen only momentarily or a considerable time past; at the other are people with prosopagnosia, who often struggle to identify family, dear acquaintances and even themselves.

Some tests also measure how proficient someone is at telling if they have not seen a face before. This is where I suspect I fall short. But scientists "haven't extensively researched this" as much as they've studied the capacity to recognize a face, according to brain researchers. It does seem that the two skills use different brain mechanisms; for example, there is evidence that exceptional facial identifiers and face-blind individuals do about as well as each other at recognizing new faces, despite their wildly different abilities to remember old faces.

Undergoing Face Identification Assessments

I felt intrigued whether these evaluations would provide insight on why unfamiliar individuals look recognizable. Was I someone who constantly recalls a face? I often recognize people more than they recognize me, and feel disheartened – a emotion that researchers say is typical for super-recognizers. But maybe I excessively identify faces – to the degree that even some new faces look familiar.

I obtained several facial recognition tests. I worked through them, feeling confused at times. In one, called the memory for faces evaluation, I had to look at black-and-white photos of a face from different viewpoints, then find it in lineups. During another test that instructed me to pick out celebrities from a mix of photos, many of the faces felt at least known, but I couldn't precisely recognize them – reminiscent to my everyday experience.

I felt uncertain about my results. But after assessment of my results, I had accurately recognized 96% of the public figure faces. The conclusion was that I qualified as a "borderline super-recognizer".

Grasping Incorrect Identification Rates

I also did exceptionally in the old/new faces task, which was described as especially effective for measuring someone's recognition for faces. The subject looks at a sequence of 60 monochrome photos, each of a distinct face. Then they examine a series of 120 comparable photos – the initial collection plus 60 new faces – and identify which were in the initial group. The exceptional facial identifier threshold is roughly 80%; I recognized 78% of the faces I'd seen. On the other end of the spectrum, people with face blindness correctly guess an average of 57%.

I felt satisfied with my result, but also taken aback. I recognized many of the previously seen countenances, but rarely confused a unfamiliar countenance for one that I'd seen before. My result on this metric, called the incorrect identification frequency, was 18%. Average identifiers, exceptional facial identifiers and prosopagnosics all have a mistaken recognition percentage of about 30% on average. So why was I mistaking a unfamiliar individual's face for my elderly relative's?

Examining Potential Reasons

It was theorized that I probably possessed some super-recognizer capacities. Everyone has a inventory of the faces we know in our memory, but exceptional facial identifiers – and probably borderline straddlers like me – have a fairly substantial and high-resolution catalogue. We're also possibly to distinguish countenances – that is, assign traits to each face, such as approachability or impoliteness. Studies suggests that the later element helps people to learn and store faces to enduring recollection. While differentiating may help me recall people, it may also trick me into seeing my elderly relative in a woman who has a similar air.

In furthermore, it was thought I might be "an engaged facial observer", meaning I pay a significant focus to faces. Others may have more incorrect identification moments, thinking they identify someone they don't know. But because I tend to look carefully at faces, I am disposed to notice the stranger who similar to my grandma. Indeed, one companion who said she doesn't make facial recognition mistakes confessed she doesn't really look at the people around her.

Investigating Hyperfamiliarity for Faces

These tests helped me understand where I positioned on the range. But I wanted to understand more about what is happening in the brain when we "know" strangers. Examining further, I read about a condition called excessive facial recognition (HFF), in which unfamiliar faces appear familiar. Initially, this sounded like it could apply to me. But the few of documented instances all happened after a health incident such as a epileptic episode or brain attack, unlike the peculiarity that I've been noticing my whole mature years.

Through investigative websites, experts have heard from about 24,000 face-blind individuals, as well as people with all kinds of person recognition difficulties, including perceptual alterations, like when faces appear to be melting. Researchers study many of these people, using methods like the old/new faces task and the facial recall assessment.

Experts have heard from only a small number of people with suspected HFF in extended periods of study.

"The prevalence is quite low," one expert said of HFF. However, they hypothesized that there may be a spectrum, with some people who think each countenance is known, and others, like me, who only undergo it a few times a month.

{Understanding