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During my mid-20s, I noticed my grandma through the glass of a coffee shop. I felt astonished – she had departed the prior year. I looked intently for a short time, then reminded myself it couldn't possibly be her.

I'd had analogous experiences throughout my life. Occasionally, I "identified" someone I had never met. At times I could promptly pinpoint who the unfamiliar person reminded me of – like my grandmother. On other occasions, a countenance simply had a vague familiarity I couldn't recognize.

Investigating the Variety of Person Recognition Capabilities

Recently, I began questioning if other people have these odd encounters. When I inquired my acquaintances, one said she often sees people in random places who look known. Others occasionally confuse a unknown person or celebrity for someone they know in real life. But some reported no such experiences – they could effortlessly recognize people they'd met and people they hadn't.

I felt intrigued by this range of responses. Was it just desire that made me see my grandma that day – or some kind of cognitive error? Studies has found we spend about 14 minutes 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 perceive the same thing.

Understanding the Continuum of Facial Recognition Skills

Researchers have created many evaluations to measure the skill to remember faces. There exists a extensive variety: at one extreme are superior face rememberers, who remember faces they have seen only momentarily or a considerable time past; at the other are people with prosopagnosia, who often find it challenging to identify family, close friends and even themselves.

Some tests also measure how proficient someone is at recognizing if they have not seen a face before. This is where I suspect I have limitations. But experts "just haven't dug into this" as much as they've looked at the capacity to remember a face, according to neuroscience experts. It does seem that the two capabilities use different brain functions; for case, there is evidence that super-recognizers and face-blind individuals do about as well as each other at discerning new faces, despite their vastly dissimilar abilities to recall old faces.

Undergoing Person Recognition Assessments

I felt interested whether these tests would offer understanding on why strangers look familiar. Was I someone who never forgets a face? I often remember people more than they recognize me, and feel let down – a emotion that scientists say is typical for exceptional facial identifiers. But maybe I excessively identify faces – to the extent that even some new faces look known.

I was sent several face identification tests. I completed them, feeling confused at times. In one, called the facial recall assessment, I had to look at black-and-white photos of a face from different viewpoints, then find it in lineups. During another test that directed me to pick out famous people from a mix of photos, many of the faces felt at least familiar, but I couldn't quite place them – comparable to my real-life experience.

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

Comprehending Incorrect Identification Rates

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 series of 60 monochrome photos, each of a distinct face. Then they review a sequence of 120 comparable photos – the initial collection plus 60 unfamiliar countenances – and specify which were in the initial group. The superior face rememberer cutoff is roughly 80%; I remembered 78% of the faces I'd seen. On the other side of the continuum, people with prosopagnosia accurately identify an average of 57%.

I felt content with my performance, but also astonished. I recognized many of the familiar visages, but seldom confused a new face for one that I'd seen before. My score on this metric, called the mistaken recognition percentage, was 18%. Typical rememberers, superior face rememberers and prosopagnosics all have a false alarm rate of about 30% on average. So why was I confusing a unfamiliar individual's face for my grandma's?

Investigating Potential Reasons

It was proposed that I possibly possessed some super-recognizer capabilities. Everyone has a inventory of the faces we know in our recollection, but exceptional facial identifiers – and probably borderline straddlers like me – have a comparatively extensive and high-resolution catalogue. We're also likely to differentiate visages – that is, attribute qualities to each face, such as amiability or impoliteness. Studies suggests that the second aspect helps people to develop and retain faces to permanent recall. While individuating may help me recognize people, it may also mislead me into seeing my grandmother in a woman who has a similar air.

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 incorrect identification moments, thinking they identify someone they don't know. But because I tend to look closely at faces, I am disposed to notice the unknown person who similar to my grandma. Indeed, one companion who said she doesn't make face identification mistakes admitted she doesn't really look at the people around her.

Researching Hyperfamiliarity for Faces

These assessments helped me understand where I positioned on the range. 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 over-familiarity with countenances (HFF), in which unrecognized faces appear familiar. Superficially, this sounded like it could pertain to me. But the small number of recorded occurrences all happened after a physical event such as a epileptic episode or cerebral accident, unlike the idiosyncrasy that I've been noticing my whole mature years.

Through scientific platforms, experts have heard from about 24,000 face-blind individuals, as well as people with all kinds of person recognition difficulties, including sight abnormalities, like when faces appear to be melting. Researchers study many of these people, using instruments like the known/unknown countenances task and the Cambridge Face Memory Test.

Experts have heard from only a small number of people with possible HFF in long durations of study.

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

{Understanding