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Throughout my mid-20s, I noticed my grandma through the window of a coffee shop. I felt stunned – she had departed the prior year. I looked intently for a moment, then remembered it was impossible to be her.

I'd experienced analogous occurrences all through my life. Occasionally, I "knew" a person I was unacquainted with. Sometimes I could promptly determine who the unknown individual reminded me of – for instance my grandma. Other times, a face simply had a indistinct knowingness I couldn't recognize.

Investigating the Range of Person Recognition Experiences

Lately, I became curious if different individuals have these unusual situations. When I asked my friends, one commented she often sees individuals in unexpected places who look recognizable. Others sometimes misidentify a unfamiliar individual or public figure for someone they know in real life. But some reported completely different responses – they could readily recognize people they'd met and people they hadn't.

I felt curious by this diversity of perceptions. Was it just longing that made me see my elderly relative that day – or some kind of cognitive error? Studies has found we spend about a quarter-hour of every hour looking at faces – do we just make mistakes sometimes? I was commencing to comprehend that we can all see the same face but not experience the same thing.

Comprehending the Spectrum of Person Recognition Abilities

Researchers have designed many tests to assess the skill to recall faces. There exists a broad spectrum: at one end are super-recognizers, who remember faces they have seen only momentarily or a considerable time past; at the other are people with facial agnosia, who often struggle to recognize family, close friends and even themselves.

Some tests also measure how skilled someone is at determining if they have not seen a face before. This is where I think I have limitations. But researchers "haven't extensively researched this" as much as they've looked at the skill to remember a face, according to cognitive neuroscientists. It does seem that the two abilities use distinct brain mechanisms; for instance, there is evidence that super-recognizers and prosopagnosics do about as well as each other at identifying new faces, despite their wildly different abilities to recall old faces.

Undergoing Person Recognition Evaluations

I felt intrigued whether these assessments would provide insight on why strangers look recognizable. Was I someone who never forgets a face? I often remember people more than they recognize me, and feel let down – a sentiment that researchers say is frequent for superior face rememberers. But maybe I over-recognize faces – to the extent that even some new faces look recognizable.

I received several person recognition tests. I worked through them, feeling confused at times. In one, called the Cambridge Face Memory Test, I had to look at grayscale photos of a face from three angles, then find it in lineups. During another test that instructed me to pick out famous people from a mix of photos, many of the faces felt at least known, but I couldn't precisely recognize them – comparable to my real-life experience.

I felt doubtful about my performance. But after assessment of my performance, I had correctly identified 96% of the celebrity faces. The finding was that I qualified as a "near-exceptional facial identifier".

Comprehending Mistaken Recognition Frequencies

I also performed well in the old/new faces task, which was described as particularly good for measuring someone's memory for faces. The test-taker looks at a sequence of 60 grayscale photos, each of a distinct face. Then they look through a series of 120 similar photos – the original series plus 60 new faces – and indicate which were in the initial group. The exceptional facial identifier threshold is roughly 80%; I remembered 78% of the faces I'd seen. On the other side of the range, people with face blindness properly recognize an average of 57%.

I felt pleased with my score, but also surprised. I remembered many of the previously seen countenances, but rarely mistook a unknown visage for one that I'd seen before. My score on this indicator, called the mistaken recognition percentage, was 18%. Normal recognizers, super-recognizers and those with facial agnosia all have a incorrect identification frequency of about 30% on average. So why was I mistaking a unfamiliar individual's face for my grandmother's?

Examining Potential Reasons

It was suggested that I probably possessed some superior face rememberer capacities. Everyone has a database of the faces we know in our memory, but super-recognizers – and likely near-exceptional individuals like me – have a fairly substantial and precise catalogue. We're also likely to individuate faces – that is, ascribe characteristics to each face, such as approachability or rudeness. Studies suggests that the later element helps people to learn and commit faces to enduring recollection. While distinguishing may help me recognize people, it may also deceive me into seeing my grandma in a woman who has a analogous presence.

In moreover, it was considered I might be "a attentive countenance examiner", meaning I pay a lot of attention to faces. Others may have more false alarm moments, thinking they know someone they don't know. But because I tend to look closely at faces, I am prone to notice the unknown person who resembles my grandma. Indeed, one friend who said she doesn't make person recognition mistakes confessed she doesn't really look at the people around her.

Examining Hyperfamiliarity for Faces

These assessments helped me understand where I positioned on the spectrum. But I wanted to understand more about what is happening in the brain when we "identify" unknown people. Examining further, I read about a syndrome called hyperfamiliarity for faces (HFF), in which unrecognized faces appear recognizable. On the surface, this sounded like it could relate to me. But the small number of documented instances all happened after a health incident such as a epileptic episode or brain attack, unlike the quirk that I've been experiencing my whole mature years.

Through research sites, experts have heard from about 24,000 prosopagnosics, as well as people with all kinds of facial recognition difficulties, including visual distortions, like when faces appear to be melting. Researchers study many of these people, using methods like the previously seen/unfamiliar faces task and the memory for faces evaluation.

Experts have heard from only a few of people with suspected HFF in long durations of investigation.

"The prevalence is quite low," one expert said of HFF. However, they hypothesized that there may be a spectrum, with some people who think every face is recognizable, and others, like me, who only encounter it a several occasions a month.

{Understanding