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During my young adulthood, I observed my grandma through the glass of a café. I felt astonished – she had departed the prior year. I looked intently for a brief period, then recalled it was impossible to be her.

I'd encountered similar occurrences all through my life. Periodically, I "identified" an individual I was unacquainted with. Sometimes I could promptly pinpoint who the stranger looked like – like my grandmother. Other times, a visage simply had a subtle recognition I couldn't place.

Examining the Spectrum of Facial Recognition Experiences

In recent times, I began questioning if different individuals have these unusual situations. When I inquired my acquaintances, one said she often sees people in unexpected places who look known. Others occasionally misidentify a unfamiliar individual or public figure for someone they know in real life. But some reported nothing of the kind – they could effortlessly identify people they'd met and people they hadn't.

I felt intrigued by this spectrum of responses. Was it just longing that made me see my grandma that day – or some kind of brain malfunction? Research has found we spend about approximately 900 seconds of every hour looking at faces – do we just have inaccuracies sometimes? I was commencing to comprehend that we can all see the same face but not perceive the same thing.

Grasping the Continuum of Person Recognition Skills

Scientists have developed many assessments to measure the capacity to remember faces. There exists a wide range: at one end are superior face rememberers, who recall faces they have seen only briefly or a considerable time past; at the other are people with facial agnosia, who often struggle to identify kin, close friends and even themselves.

Some evaluations also measure how proficient someone is at recognizing if they have not seen a face before. This is where I believe I fall short. But scientists "haven't thoroughly investigated this" as much as they've examined the ability to remember a face, according to brain researchers. It does seem that the two abilities use different brain mechanisms; for instance, there is evidence that exceptional facial identifiers and face-blind individuals do about as well as each other at recognizing new faces, despite their extremely distinct abilities to recognize old faces.

Completing Facial Recognition Evaluations

I felt intrigued whether these assessments would provide insight on why unfamiliar individuals look recognizable. Was I someone who never forgets a face? I often recall people more than they recall me, and feel let down – a sentiment that experts say is typical for exceptional facial identifiers. But maybe I excessively identify faces – to the point that even some new faces look familiar.

I obtained several face identification tests. I worked through them, feeling confused at times. In one, called the Cambridge Face Memory Test, I had to look at grayscale photos of a face from multiple perspectives, then find it in arrays. During another test that directed me to pick out celebrities from a mix of photos, many of the faces felt at least known, but I couldn't exactly identify them – reminiscent to my real-life experience.

I felt uncertain about my results. But after evaluation of my scores, I had correctly identified 96% of the celebrity faces. The finding was that I qualified as a "borderline super-recognizer".

Grasping Mistaken Recognition Rates

I also excelled in the old/new faces task, which was described as notably useful for assessing someone's recall for faces. The participant looks at a collection of 60 black-and-white photos, each of a separate face. Then they look through a string of 120 comparable photos – the initial collection plus 60 unknown visages – and identify which were in the first set. The superior face rememberer threshold is roughly 80%; I recalled 78% of the faces I'd seen. On the other side of the range, people with face blindness properly recognize an average of 57%.

I felt content with my performance, but also surprised. I recalled many of the previously seen countenances, but infrequently confused a unfamiliar countenance for one that I'd seen before. My result on this metric, called the incorrect identification frequency, was 18%. Average identifiers, 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 elderly relative's?

Examining Possible Reasons

It was suggested that I possibly possessed some superior face rememberer capacities. Everyone has a inventory of the faces we know in our recall, but exceptional facial identifiers – and possibly near-exceptional individuals like me – have a relatively large and precise catalogue. We're also probably to individuate faces – that is, assign traits to each face, such as approachability or impoliteness. Scientific investigation suggests that the later element helps people to develop and store faces to permanent recall. While individuating may help me recognize people, it may also deceive me into seeing my grandma in a woman who has a comparable demeanor.

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

Researching Over-familiarity for Faces

These tests helped me understand where I sat on the spectrum. But I wanted to understand more about what is happening in the brain when we "identify" unknown people. Researching further, I read about a disorder called excessive facial recognition (HFF), in which unfamiliar faces appear known. Superficially, this sounded like it could pertain to me. But the few of reported cases all took place after a physical event such as a epileptic episode or cerebral accident, unlike the quirk that I've been experiencing 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 face identification difficulties, including visual distortions, like when faces appear to be melting. 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 handful of people with potential HFF in extended periods of investigation.

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

{Understanding