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During my twenties, I spotted my grandma through the glass of a coffee shop. I felt stunned – she had departed the prior year. I looked intently for a brief period, then reminded myself it couldn't be her.

I'd experienced analogous situations all through my life. Occasionally, I "identified" a person I was unacquainted with. At times I could quickly pinpoint who the unfamiliar person reminded me of – for instance my grandma. Other times, a visage simply had a vague familiarity I couldn't identify.

Exploring the Range of Face Identification Capabilities

Recently, I began questioning if others have these unusual experiences. When I questioned my companions, one mentioned she often sees individuals in unexpected places who look familiar. Others sometimes misidentify a stranger or celebrity for someone they know in real life. But some reported completely different responses – they could effortlessly identify people they'd met and people they hadn't.

I felt fascinated by this spectrum of perceptions. Was it just desire that made me see my grandmother that day – or some kind of mental glitch? Scientific investigation has found we spend about a quarter-hour of every hour looking at faces – do we just err sometimes? I was starting to understand that we can all see the same face but not interpret the same thing.

Grasping the Continuum of Person Recognition Skills

Investigators have created many evaluations to measure the ability to recognize faces. There exists a extensive variety: at one extreme are super-recognizers, who remember faces they have seen only momentarily or a distant past; at the other are people with face blindness, who often struggle to know family, intimate companions and even themselves.

Some evaluations also measure how proficient someone is at determining if they have not seen a face before. This is where I think I fall short. But experts "just haven't dug into this" as much as they've examined the ability to remember a face, according to neuroscience experts. It does seem that the two capabilities use different brain mechanisms; for case, there is evidence that super-recognizers and prosopagnosics do about as well as each other at recognizing new faces, despite their wildly different abilities to remember old faces.

Undergoing Person Recognition Tests

I felt curious whether these evaluations would offer understanding on why unknown people look recognizable. Was I someone who always remembers a face? I often remember people more than they recall me, and feel let down – a emotion that experts say is frequent for super-recognizers. But maybe I hyper-recognize faces – to the point that even some new faces look known.

I obtained several person recognition tests. I waded through them, feeling stumped at times. In one, called the facial recall assessment, I had to look at grayscale photos of a face from three angles, then find it in groups. During another test that instructed me to pick out famous people from a mix of photos, many of the faces felt at least recognizable, but I couldn't exactly identify them – reminiscent to my everyday experience.

I felt uncertain about my performance. But after assessment of my scores, I had accurately recognized 96% of the famous person faces. The finding was that I qualified as a "almost superior face rememberer".

Understanding Incorrect Identification Frequencies

I also performed well in the old/new faces task, which was described as especially effective for assessing someone's recognition for faces. The test-taker looks at a series of 60 grayscale photos, each of a separate face. Then they look through a series of 120 similar photos – the initial collection plus 60 unknown visages – and indicate which were in the original collection. The superior face rememberer threshold is roughly 80%; I remembered 78% of the faces I'd seen. On the other end of the spectrum, people with facial agnosia properly recognize an average of 57%.

I felt satisfied with my score, but also taken aback. I recalled many of the previously seen countenances, but rarely misidentified a unknown visage for one that I'd seen before. My performance on this indicator, called the false alarm rate, was 18%. Normal recognizers, super-recognizers and those with facial agnosia all have a false alarm rate of about 30% on average. So why was I mistaking a stranger's face for my elderly relative's?

Exploring Potential Causes

It was proposed that I probably possessed some superior face rememberer capabilities. Everyone has a catalogue of the faces we know in our memory, but exceptional facial identifiers – and possibly almost superior rememberers like me – have a fairly substantial and high-resolution catalogue. We're also possibly to individuate faces – that is, assign traits to each face, such as amiability or impoliteness. Studies suggests that the second aspect helps people to acquire and store faces to permanent recall. While distinguishing may help me recall people, it may also deceive me into seeing my grandma in a woman who has a comparable demeanor.

In furthermore, it was thought I might be "an active face perceiver", meaning I pay a considerable notice to faces. Others may have more false alarm moments, thinking they recognize someone they don't know. But because I tend to look carefully at faces, I am disposed to notice the unknown person who looks like my grandma. Indeed, one acquaintance who said she doesn't make face identification mistakes acknowledged she doesn't really look at the people around her.

Investigating Over-familiarity for Faces

These evaluations helped me understand where I stood on the range. But I wanted to understand more about what is happening in the brain when we "know" unknown people. Examining further, I read about a disorder called hyperfamiliarity for faces (HFF), in which unrecognized faces appear familiar. Superficially, this sounded like it could pertain to me. But the few of reported cases all occurred after a medical episode such as a convulsion or brain attack, unlike the peculiarity that I've been noticing my whole grown-up existence.

Through investigative websites, experts have heard from about 24,000 prosopagnosics, as well as people with all kinds of facial recognition challenges, including perceptual alterations, like when faces appear to be dissolving. Researchers study many of these people, using instruments like the previously seen/unfamiliar faces task and the facial recall assessment.

Experts have heard from only a handful of people with possible HFF in extended periods of research.

"The occurrence rate is quite low," one expert said of HFF. However, they theorized that there may be a range, with some people who think every face is recognizable, and others, like me, who only undergo it a multiple instances a month.

{Understanding