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Throughout my twenties, I observed my grandmother through the pane of a coffee shop. I felt astonished – she had passed away the prior year. I stared for a brief period, then recalled it was impossible to be her.

I'd experienced comparable situations throughout my life. From time to time, I "identified" an individual I was unacquainted with. Sometimes I could quickly identify who the stranger reminded me of – for instance my grandma. On other occasions, a face simply had a vague familiarity I couldn't identify.

Exploring the Range of Facial Recognition Capabilities

Recently, I started wondering if different individuals have these unusual situations. When I inquired my friends, one said she frequently sees individuals in unpredictable places who look known. Others occasionally mistake a unfamiliar individual or public figure for someone they know in actual life. But some reported completely different responses – they could effortlessly distinguish people they'd met and people they hadn't.

I felt curious by this spectrum of responses. 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 approximately 900 seconds of every hour looking at faces – do we just make mistakes sometimes? I was beginning to realize that we can all see the same face but not experience the same thing.

Grasping the Range of Facial Recognition Abilities

Researchers have created many evaluations to quantify the ability to recognize faces. There exists a extensive variety: at one side are superior face rememberers, who remember faces they have seen only briefly or a distant past; at the other are people with facial agnosia, who often find it challenging to recognize family, intimate companions and even themselves.

Some assessments also assess how proficient someone is at telling if they have not seen a face before. This is where I believe I am deficient. But scientists "haven't extensively researched this" as much as they've studied the skill to recall a face, according to neuroscience experts. It does seem that the two capabilities use distinct brain processes; for example, there is evidence that super-recognizers and prosopagnosics do about as well as each other at identifying new faces, despite their extremely distinct abilities to recall old faces.

Taking Facial Recognition Assessments

I felt curious whether these evaluations would provide insight on why unfamiliar individuals look familiar. Was I someone who always remembers a face? I often recognize people more than they recall me, and feel disheartened – a sentiment that researchers say is typical for superior face rememberers. But maybe I over-recognize faces – to the point that even some new faces look recognizable.

I received several person recognition tests. I worked through them, feeling puzzled at times. In one, called the Cambridge Face Memory Test, I had to look at grayscale 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 familiar, but I couldn't precisely recognize them – reminiscent to my real-life experience.

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

Comprehending Incorrect Identification Frequencies

I also excelled in the known/unknown countenances task, which was described as especially effective for assessing someone's recognition for faces. The participant looks at a sequence of 60 monochrome photos, each of a different face. Then they examine a series of 120 similar photos – the original series plus 60 new faces – and specify which were in the first set. The superior face rememberer threshold is roughly 80%; I remembered 78% of the faces I'd seen. On the other extreme of the continuum, people with prosopagnosia properly recognize an average of 57%.

I felt content with my performance, but also taken aback. I recognized many of the old faces, but rarely misidentified a new face for one that I'd seen before. My result on this measure, called the false alarm rate, was 18%. Average identifiers, exceptional facial identifiers and face-blind individuals all have a mistaken recognition percentage of about 30% on average. So why was I misidentifying a unfamiliar individual's face for my elderly relative's?

Investigating Potential Explanations

It was suggested that I likely possessed some super-recognizer capacities. Everyone has a database of the faces we know in our recall, but superior face rememberers – and probably borderline straddlers like me – have a comparatively extensive and detailed catalogue. We're also probably to individuate faces – that is, attribute qualities to each face, such as amiability or rudeness. Research suggests that the second aspect helps people to learn and commit faces to permanent recall. While individuating may help me recognize people, it may also mislead me into seeing my elderly relative in a woman who has a similar air.

In furthermore, it was thought I might be "a attentive countenance examiner", meaning I pay a considerable notice to faces. Others may have more incorrect identification moments, thinking they know someone they don't know. But because I tend to look attentively at faces, I am disposed to notice the unfamiliar individual who resembles my grandmother. Indeed, one friend who said she doesn't make facial recognition mistakes admitted she doesn't really look at the people around her.

Investigating Hyperfamiliarity for Faces

These tests helped me understand where I stood on the continuum. But I wanted to understand more about what is happening in the brain when we "recognize" strangers. Examining further, I read about a disorder called excessive facial recognition (HFF), in which unfamiliar faces appear familiar. On the surface, this sounded like it could relate to me. But the small number of reported cases all happened after a medical episode such as a epileptic episode or stroke, unlike the peculiarity that I've been noticing my whole mature years.

Through research sites, experts have heard from about 24,000 those with facial agnosia, as well as people with all kinds of facial recognition difficulties, including visual distortions, like when faces appear to be dissolving. Researchers study many of these people, using tools like the previously seen/unfamiliar faces task and the Cambridge Face Memory Test.

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

"The frequency 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 known, and others, like me, who only undergo it a several occasions a month.

{Understanding