🔗 Share this article

During my mid-20s, I observed my elderly relative through the window of a coffee house. I felt dumbstruck – she had passed away the year before. I stared for a brief period, then reminded myself it couldn't possibly be her.

I'd experienced similar experiences all through my life. Periodically, I "knew" a person I was unacquainted with. At times I could quickly identify who the unfamiliar person looked like – for instance my grandmother. In other instances, a visage simply had a subtle recognition I couldn't place.

Exploring the Variety of Facial Recognition Experiences

Lately, I began questioning if others have these odd encounters. When I asked my acquaintances, one said she regularly sees people in unexpected places who look recognizable. Others at times mistake a stranger or celebrity for someone they know in real life. But some reported completely different responses – they could effortlessly distinguish people they'd met and people they hadn't.

I felt intrigued by this spectrum of experiences. Was it just longing that made me see my grandma 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 have inaccuracies sometimes? I was beginning to realize that we can all see the same face but not experience the same thing.

Comprehending the Range of Facial Recognition Abilities

Researchers have developed many evaluations to assess the capacity to recall faces. There exists a broad spectrum: at one side are exceptional facial identifiers, who recall faces they have seen only briefly or a distant past; at the other are people with face blindness, who often have difficulty to know kin, dear acquaintances and even themselves.

Some assessments also capture how proficient someone is at recognizing if they have not seen a face before. This is where I think I have limitations. But scientists "just haven't dug into this" as much as they've studied the capacity to remember a face, according to neuroscience experts. It does seem that the two abilities use distinct brain processes; for example, there is evidence that exceptional facial identifiers and prosopagnosics do about as well as each other at discerning new faces, despite their wildly different abilities to recall old faces.

Completing Face Identification Evaluations

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

I received several facial recognition tests. I worked through them, feeling stumped at times. In one, called the Cambridge Face Memory Test, I had to look at black-and-white photos of a face from three angles, 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 exactly identify them – reminiscent to my everyday experience.

I felt uncertain about my performance. But after evaluation of my results, I had correctly identified 96% of the celebrity faces. The determination was that I qualified as a "almost superior face rememberer".

Grasping Incorrect Identification Frequencies

I also did exceptionally in the old/new faces task, which was described as notably useful for assessing someone's recognition for faces. The participant looks at a sequence of 60 black-and-white photos, each of a different face. Then they examine a string of 120 comparable photos – the initial collection plus 60 unfamiliar countenances – and identify which were in the original collection. The super-recognizer threshold is roughly 80%; I remembered 78% of the faces I'd seen. On the other end of the range, people with facial agnosia properly recognize an average of 57%.

I felt pleased with my performance, but also astonished. I remembered many of the familiar visages, but infrequently mistook a unknown visage for one that I'd seen before. My score on this measure, called the mistaken recognition percentage, was 18%. Average identifiers, superior face rememberers and those with facial agnosia all have a mistaken recognition percentage of about 30% on average. So why was I mistaking a stranger's face for my elderly relative's?

Examining Possible Explanations

It was suggested that I likely possessed some superior face rememberer abilities. Everyone has a catalogue of the faces we know in our recall, but exceptional facial identifiers – and probably almost superior rememberers like me – have a fairly substantial and detailed catalogue. We're also probably to differentiate visages – that is, ascribe characteristics to each face, such as friendliness or impoliteness. Research suggests that the latter helps people to develop and commit faces to enduring recollection. While individuating may help me remember people, it may also deceive me into seeing my grandma in a woman who has a similar air.

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

Examining Hyperfamiliarity for Faces

These assessments helped me understand where I positioned on the continuum. But I wanted to understand more about what is happening in the brain when we "know" strangers. Researching further, I read about a condition called over-familiarity with countenances (HFF), in which unknown faces appear known. Initially, this sounded like it could apply to me. But the few of recorded occurrences all occurred after a health incident such as a epileptic episode or cerebral accident, unlike the quirk that I've been noticing my whole grown-up existence.

Through research sites, experts have heard from about 24,000 face-blind individuals, as well as people with all kinds of facial recognition challenges, including perceptual alterations, like when faces appear to be dissolving. Researchers study many of these people, using instruments like the previously seen/unfamiliar faces task and the memory for faces evaluation.

Experts have heard from only a small number of people with suspected HFF in long durations of study.

"The frequency is quite low," one expert said of HFF. However, they hypothesized that there may be a continuum, with some people who think every face is recognizable, and others, like me, who only undergo it a multiple instances a month.

{Understanding