🔗 Share this article

During my twenties, I observed my grandmother through the glass of a café. I felt dumbstruck – she had passed away the previous year. I stared for a brief period, then reminded myself it was impossible to be her.

I'd experienced comparable occurrences throughout my life. Periodically, I "knew" someone I didn't know. Sometimes I could rapidly pinpoint who the unfamiliar person looked like – for instance my grandmother. Other times, a countenance simply had a indistinct knowingness I couldn't recognize.

Exploring the Range of Facial Recognition Experiences

Lately, I became curious if different individuals have these unusual encounters. When I questioned my friends, one said she often sees persons in random places who look familiar. Others sometimes mistake a unfamiliar individual or celebrity for someone they know in everyday existence. But some reported nothing of the kind – they could easily identify people they'd met and people they hadn't.

I felt fascinated by this range of responses. 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 starting to understand that we can all see the same face but not perceive the same thing.

Comprehending the Spectrum of Facial Recognition Skills

Scientists have developed many evaluations to quantify the skill to recognize faces. There exists a wide range: at one side are superior face rememberers, who remember faces they have seen only for a short time or a distant past; at the other are people with facial agnosia, who often find it challenging to identify kin, intimate companions and even themselves.

Some tests also assess how skilled someone is at recognizing if they have not seen a face before. This is where I suspect I fall short. But researchers "just haven't dug into this" as much as they've studied the skill to recognize a face, according to neuroscience experts. It does seem that the two abilities use separate brain mechanisms; for example, there is proof that super-recognizers and face-blind individuals do about as well as each other at recognizing new faces, despite their extremely distinct abilities to recognize old faces.

Undergoing Face Identification Evaluations

I felt interested whether these evaluations would provide insight on why unknown people look known. Was I someone who never forgets a face? I often recall people more than they recognize me, and feel disheartened – a sentiment that scientists say is typical for exceptional facial identifiers. But maybe I over-recognize faces – to the degree that even some new faces look known.

I received several person recognition tests. I worked through them, feeling puzzled at times. In one, called the facial recall assessment, I had to look at grayscale photos of a face from multiple perspectives, then find it in groups. During another test that directed me to pick out famous people from a mix of photos, many of the faces felt at least familiar, but I couldn't precisely recognize them – reminiscent to my actual experience.

I felt less than confident about my performance. But after assessment of my results, I had accurately recognized 96% of the famous person faces. The finding was that I qualified as a "borderline super-recognizer".

Grasping False Alarm Rates

I also excelled in the old/new faces task, which was described as notably useful for measuring someone's recall for faces. The test-taker looks at a series of 60 black-and-white photos, each of a different face. Then they examine a sequence of 120 similar photos – the initial collection plus 60 unknown visages – and specify which were in the first set. 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 content with my performance, but also taken aback. I recognized many of the old faces, but seldom mistook a new face for one that I'd seen before. My score on this metric, called the false alarm rate, was 18%. Average identifiers, exceptional facial identifiers and prosopagnosics all have a mistaken recognition percentage of about 30% on average. So why was I confusing a stranger's face for my grandmother's?

Examining Possible Reasons

It was proposed that I probably possessed some exceptional facial identifier abilities. Everyone has a catalogue of the faces we know in our recollection, but super-recognizers – and probably borderline straddlers like me – have a comparatively extensive and detailed catalogue. We're also possibly to distinguish countenances – that is, assign characteristics to each face, such as approachability or rudeness. Scientific investigation suggests that the second aspect helps people to develop and commit faces to enduring recollection. While distinguishing may help me remember people, it may also deceive me into seeing my elderly relative in a woman who has a comparable demeanor.

In addition, it was considered I might be "a attentive countenance examiner", meaning I pay a considerable notice to faces. Others may have more false alarm moments, thinking they recognize someone they don't know. But because I tend to look closely at faces, I am prone to notice the stranger who resembles my elderly relative. Indeed, one companion who said she doesn't make person recognition mistakes acknowledged she doesn't really look at the people around her.

Researching Excessive Recognition 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. Examining further, I read about a condition called over-familiarity with countenances (HFF), in which unrecognized faces appear recognizable. Initially, this sounded like it could pertain to me. But the few of documented instances all occurred after a health incident such as a seizure or brain attack, unlike the peculiarity that I've been experiencing my whole mature years.

Through research sites, experts have heard from about 24,000 face-blind individuals, as well as people with all kinds of person recognition difficulties, including sight abnormalities, like when faces appear to be melting. Researchers study many of these people, using instruments like the old/new faces task and the memory for faces evaluation.

Experts have heard from only a small number of people with suspected HFF in many years of research.

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

{Understanding