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Throughout my twenties, I observed my grandmother through the pane of a coffee shop. I felt astonished – she had departed the previous year. I stared for a short time, then remembered it was impossible to be her.

I'd had analogous occurrences during my life. Periodically, I "identified" someone I was unacquainted with. Sometimes I could quickly identify who the stranger resembled – such as my elderly relative. On other occasions, a visage simply had a indistinct knowingness I couldn't recognize.

Examining the Variety of Facial Recognition Abilities

In recent times, I began questioning if others have these odd situations. When I questioned my friends, one mentioned she frequently sees persons in unpredictable places who look familiar. Others occasionally mistake a unknown person or celebrity for someone they know in everyday existence. But some reported completely different responses – they could effortlessly distinguish people they'd met and people they hadn't.

I felt fascinated by this range of responses. Was it just desire 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 err sometimes? I was beginning to realize that we can all see the same face but not perceive the same thing.

Comprehending the Continuum of Person Recognition Skills

Investigators have created many evaluations to measure the ability to recall faces. There exists a extensive variety: at one end are super-recognizers, who recognize faces they have seen only briefly or a long time ago; at the other are people with face blindness, who often have difficulty to recognize family, dear acquaintances and even themselves.

Some evaluations also measure how proficient someone is at telling if they have not seen a face before. This is where I suspect I fall short. But researchers "haven't extensively researched this" as much as they've studied the ability to recall a face, according to neuroscience experts. It does seem that the two skills use separate brain mechanisms; for instance, there is indication that superior face rememberers and prosopagnosics do about as well as each other at identifying new faces, despite their vastly dissimilar abilities to recall old faces.

Undergoing Face Identification Evaluations

I felt curious whether these assessments would offer understanding on why unfamiliar individuals look familiar. Was I someone who constantly recalls a face? I often recall people more than they remember me, and feel disappointed – a feeling that scientists say is common for exceptional facial identifiers. But maybe I over-recognize faces – to the point that even some new faces look familiar.

I received several face identification tests. I waded through them, feeling stumped at times. In one, called the memory for faces evaluation, I had to look at grayscale photos of a face from different viewpoints, then find it in arrays. During another test that told me to pick out public figures from a mix of photos, many of the faces felt at least recognizable, but I couldn't exactly identify them – comparable to my everyday experience.

I felt doubtful about my performance. But after evaluation of my results, I had properly distinguished 96% of the famous person faces. The conclusion was that I qualified as a "borderline super-recognizer".

Comprehending Incorrect Identification Percentages

I also did exceptionally in the old/new faces task, which was described as particularly good for evaluating someone's recognition for faces. The test-taker looks at a collection of 60 monochrome photos, each of a separate face. Then they look through a string of 120 analogous photos – the initial collection plus 60 unfamiliar countenances – and indicate which were in the original collection. The exceptional facial identifier threshold is roughly 80%; I recalled 78% of the faces I'd seen. On the other end of the spectrum, people with prosopagnosia correctly guess an average of 57%.

I felt pleased with my result, but also surprised. I recalled many of the old faces, but infrequently misidentified a new face for one that I'd seen before. My performance on this metric, called the mistaken recognition percentage, was 18%. Normal recognizers, exceptional facial identifiers and prosopagnosics all have a mistaken recognition percentage of about 30% on average. So why was I misidentifying a unknown person's face for my grandmother's?

Examining Potential Causes

It was suggested that I probably possessed some super-recognizer capacities. Everyone has a database of the faces we know in our memory, but exceptional facial identifiers – and likely almost superior rememberers like me – have a relatively large and high-resolution catalogue. We're also likely to differentiate visages – that is, assign qualities to each face, such as friendliness or discourtesy. Research suggests that the later element helps people to develop and commit faces to long-term memory. While distinguishing may help me recognize people, it may also mislead me into seeing my elderly relative in a woman who has a comparable demeanor.

In furthermore, it was considered I might be "an engaged facial observer", meaning I pay a significant focus to faces. Others may have more mistaken recognition moments, thinking they recognize someone they don't know. But because I tend to look carefully at faces, I am inclined to notice the unknown person who looks like my grandma. 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 evaluations helped me understand where I sat 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 syndrome called hyperfamiliarity for faces (HFF), in which unknown faces appear recognizable. On the surface, this sounded like it could relate to me. But the few of reported cases all occurred after a health incident such as a epileptic episode or brain attack, unlike the peculiarity that I've been experiencing my whole adult life.

Through investigative websites, experts have heard from about 24,000 face-blind individuals, as well as people with all kinds of person recognition challenges, including perceptual alterations, like when faces appear to be liquefying. Researchers study many of these people, using instruments like the known/unknown countenances task and the memory for faces evaluation.

Experts have heard from only a small number of people with suspected HFF in extended periods of investigation.

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

{Understanding