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Throughout my young adulthood, I spotted my elderly relative through the glass of a coffee house. I felt astonished – she had departed the previous year. I looked intently for a moment, then recalled it couldn't be her.

I'd encountered analogous experiences all through my life. From time to time, I "recognized" someone I was unacquainted with. Occasionally I could quickly determine who the stranger reminded me of – for instance my elderly relative. Other times, a face simply had a indistinct knowingness I couldn't identify.

Examining the Variety of Person Recognition Capabilities

Recently, I became curious if different individuals have these odd encounters. When I questioned my friends, one commented she frequently sees individuals in unpredictable places who look known. Others at times mistake a unfamiliar individual or public figure for someone they know in actual life. But some described completely different responses – they could effortlessly identify people they'd met and people they hadn't.

I felt intrigued by this diversity of experiences. Was it just yearning that made me see my elderly relative 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 make mistakes sometimes? I was starting to understand that we can all see the same face but not experience the same thing.

Grasping the Range of Person Recognition Capacities

Investigators have created many evaluations to measure the skill to recall faces. There exists a broad spectrum: at one extreme are super-recognizers, who recognize faces they have seen only for a short time or a distant past; at the other are people with facial agnosia, who often struggle to know relatives, close friends and even themselves.

Some assessments also assess how good someone is at recognizing if they have not seen a face before. This is where I think I am deficient. But scientists "haven't extensively researched this" as much as they've looked at the capacity to remember a face, according to cognitive neuroscientists. It does seem that the two capabilities use distinct brain functions; for case, there is evidence that super-recognizers and prosopagnosics do about as well as each other at recognizing new faces, despite their extremely distinct abilities to remember old faces.

Undergoing Facial Recognition Tests

I felt interested whether these evaluations would offer understanding on why strangers look recognizable. Was I someone who never forgets a face? I often remember people more than they recall me, and feel disappointed – a emotion that experts say is typical for superior face rememberers. But maybe I hyper-recognize faces – to the extent 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 facial recall assessment, I had to look at monochrome photos of a face from three angles, then find it in groups. During another test that told 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 – similar to my real-life experience.

I felt doubtful about my performance. But after assessment of my scores, I had properly distinguished 96% of the celebrity faces. The conclusion was that I qualified as a "almost superior face rememberer".

Understanding Incorrect Identification Percentages

I also performed well in the previously seen/unfamiliar faces task, which was described as particularly good for measuring someone's recognition for faces. The participant looks at a collection of 60 monochrome photos, each of a different face. Then they look through a string of 120 comparable photos – the first group plus 60 new faces – and specify which were in the original collection. The superior face rememberer benchmark is roughly 80%; I remembered 78% of the faces I'd seen. On the other end of the range, people with face blindness properly recognize an average of 57%.

I felt pleased with my score, but also taken aback. I recognized many of the familiar visages, but rarely mistook a new face for one that I'd seen before. My performance on this metric, called the mistaken recognition percentage, was 18%. Typical rememberers, exceptional facial identifiers and prosopagnosics all have a incorrect identification frequency of about 30% on average. So why was I misidentifying a stranger's face for my grandmother's?

Examining Possible Reasons

It was suggested that I possibly possessed some exceptional facial identifier capacities. Everyone has a inventory of the faces we know in our memory, but superior face rememberers – and probably near-exceptional individuals like me – have a relatively large and precise catalogue. We're also possibly to differentiate visages – that is, attribute qualities to each face, such as approachability or rudeness. Studies suggests that the second aspect helps people to develop and retain faces to permanent recall. While individuating may help me remember people, it may also deceive me into seeing my grandmother in a woman who has a comparable demeanor.

In furthermore, it was believed I might be "an active face perceiver", meaning I pay a considerable notice to faces. Others may have more mistaken recognition moments, thinking they identify someone they don't know. But because I tend to look attentively at faces, I am prone to notice the unknown person who similar to my elderly relative. Indeed, one acquaintance who said she doesn't make facial recognition mistakes confessed she doesn't really look at the people around her.

Examining Excessive Recognition for Faces

These tests 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" unfamiliar individuals. Examining further, I read about a disorder called over-familiarity with countenances (HFF), in which unrecognized faces appear familiar. Initially, this sounded like it could apply to me. But the few of reported cases all occurred after a health incident such as a seizure or cerebral accident, unlike the quirk that I've been noticing my whole mature years.

Through investigative websites, experts have heard from about 24,000 prosopagnosics, as well as people with all kinds of face identification difficulties, including sight abnormalities, like when faces appear to be melting. Researchers study many of these people, using instruments like the previously seen/unfamiliar faces task and the Cambridge Face Memory Test.

Experts have heard from only a few of people with potential HFF in extended periods of study.

"The prevalence is quite low," one expert said of HFF. However, they theorized that there may be a spectrum, with some people who think each countenance is familiar, and others, like me, who only experience it a multiple instances a month.

{Understanding