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Throughout my mid-20s, I noticed my grandma through the glass of a café. I felt dumbstruck – she had passed away the year before. I stared for a moment, then recalled it was impossible to be her.

I'd had similar experiences all through my life. From time to time, I "knew" someone I didn't know. Sometimes I could promptly determine who the unfamiliar person looked like – like my grandmother. In other instances, a face simply had a indistinct knowingness I couldn't place.

Exploring the Spectrum of Face Identification Experiences

In recent times, I became curious if different individuals have these peculiar encounters. When I inquired my acquaintances, one mentioned she often sees individuals in random places who look recognizable. Others occasionally misidentify a unfamiliar individual or public figure for someone they know in everyday existence. But some described completely different responses – they could easily distinguish people they'd met and people they hadn't.

I felt fascinated by this spectrum of responses. Was it just yearning that made me see my elderly relative that day – or some kind of brain malfunction? Studies has found we spend about a quarter-hour of every hour looking at faces – do we just err sometimes? I was commencing to comprehend that we can all see the same face but not experience the same thing.

Comprehending the Range of Face Identification Abilities

Investigators have designed many assessments to measure the capacity to recall faces. There exists a extensive variety: at one end are super-recognizers, who recognize faces they have seen only momentarily or a distant past; at the other are people with prosopagnosia, who often have difficulty to know relatives, dear acquaintances and even themselves.

Some tests also capture 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 examined the ability to recognize a face, according to brain researchers. It does seem that the two abilities use different brain functions; for case, there is indication that superior face rememberers and prosopagnosics do about as well as each other at identifying new faces, despite their extremely distinct abilities to recall old faces.

Completing Facial Recognition Tests

I felt interested whether these tests would shed some light on why unknown people look familiar. Was I someone who always remembers a face? I often recall people more than they remember me, and feel disheartened – a feeling that researchers say is common for exceptional facial identifiers. But maybe I hyper-recognize faces – to the extent that even some new faces look familiar.

I obtained several person recognition tests. I waded through them, feeling stumped at times. In one, called the memory for faces evaluation, I had to look at monochrome photos of a face from three angles, then find it in lineups. During another test that instructed me to pick out public figures from a mix of photos, many of the faces felt at least known, but I couldn't quite place them – comparable to my actual experience.

I felt uncertain about my performance. But after analysis of my performance, I had accurately recognized 96% of the celebrity faces. The finding was that I qualified as a "near-exceptional facial identifier".

Comprehending Incorrect Identification Percentages

I also performed well in the old/new faces task, which was described as especially effective for assessing someone's memory for faces. The subject looks at a series of 60 black-and-white photos, each of a separate face. Then they look through a series of 120 comparable photos – the initial collection plus 60 unknown visages – and identify which were in the original collection. The superior face rememberer benchmark is roughly 80%; I recognized 78% of the faces I'd seen. On the other side of the continuum, people with prosopagnosia correctly guess an average of 57%.

I felt pleased with my performance, but also astonished. I recognized many of the previously seen countenances, but seldom confused a new face for one that I'd seen before. My score on this measure, called the incorrect identification frequency, was 18%. Normal recognizers, super-recognizers and those with facial agnosia all have a false alarm rate of about 30% on average. So why was I confusing a unfamiliar individual's face for my elderly relative's?

Examining Potential Explanations

It was theorized that I likely possessed some superior face rememberer capacities. Everyone has a database of the faces we know in our memory, but super-recognizers – and likely almost superior rememberers like me – have a fairly substantial and high-resolution catalogue. We're also possibly to differentiate visages – that is, attribute qualities to each face, such as friendliness or discourtesy. Scientific investigation suggests that the second aspect helps people to acquire and store faces to permanent recall. While individuating may help me recall people, it may also mislead me into seeing my elderly relative in a woman who has a analogous presence.

In furthermore, it was considered I might be "a attentive countenance examiner", meaning I pay a significant focus to faces. Others may have more false alarm moments, thinking they know someone they don't know. But because I tend to look carefully at faces, I am prone to notice the unfamiliar individual who resembles 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.

Researching Hyperfamiliarity for Faces

These assessments 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 condition called excessive facial recognition (HFF), in which unknown faces appear known. On the surface, this sounded like it could pertain to me. But the handful of recorded occurrences all occurred after a physical event such as a epileptic episode or stroke, unlike the quirk that I've been observing my whole adult life.

Through scientific platforms, experts have heard from about 24,000 face-blind individuals, as well as people with all kinds of face identification challenges, including sight abnormalities, like when faces appear to be liquefying. Researchers study many of these people, using instruments like the known/unknown countenances task and the facial recall assessment.

Experts have heard from only a few of people with possible HFF in extended periods of research.

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

{Understanding