Babies who are 6 to 9 months can form memories of masked faces and recognize those faces when theyโre unmasked.
The new study should allay concerns of many parents and childhood experts who worry about possible developmental harm from widespread face-masking during the pandemic.
For the study Michaela DeBolt, a doctoral candidate in cognitive psychology, and Lisa Oakes, a professor in the psychology department and at the Center for Mind and Brain at the University of California, Davis, used eye tracking to study how masks influence infantsโ facial recognition.
They showed 58 babies, each seated on a parentโs lap or in a highchair, pairs of masked and unmasked womenโs faces on a computer screen, while cameras recorded where they looked. Because babies linger longer over unfamiliar images, the researchers could derive which faces they recognized, DeBolt says.
The testing took place at the Infant Cognition Lab at the Center for Mind and Brain in Davis, California, from late December 2021 to late March 2022, during a statewide mask mandate and the arrival of the coronavirus Omicron variant.
โWhen babies learned a masked face, and then they saw that face again unmasked, they recognized it,โ DeBolt says.
However, when the order was reversed, babies did not show strong recognition of masked faces that they first saw unmasked. DeBolt says that was similar to her own experience of not instantly recognizing a friend who was wearing a face mask.
Learning faces is central to how babies learn to talk, perceive emotions, develop relationships with their caregivers, and explore their environment, Oakes says. โSo people were very worried about face masks and the effect they would have on how infants are learning about human faces.โ
Oakes, an expert on cognitive development in infancy, says the study highlights a remarkable ability of babies to adapt. โI think that it should be very reassuring to parents in general,โ she says. โBabies all over the world develop and thrive.
โThere are so many variations in babiesโ everyday lived experience,โ she adds. โAs long as they are well cared for and fed and they get love and attention, they thrive. We can get into a mode where we think the way we do things is the best way to do things and that anything different is going to be a problem. And thatโs clearly not the case.โ
The study appears in a special issue of the journal Infancy, which focused on the impact of COVID-19 on infant development.
Source: UC Davis
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The Department of Justice's consumer-protection branch has opened a criminal investigation into the conduct of Abbott Laboratories, one of the country's largest formula makers at the center of a contamination scandal and ongoing nationwide shortage.
The existence of the investigation was first reported by The Wall Street Journal. Though the DOJ is not commenting on it, a spokesperson for Abbott said the department has informed them of the investigation and that the company is "cooperating fully."
Federal regulators last year found numerous violations and "egregiously unsanitary" conditions at Abbott's Sturgis, Michigan, plant, the largest formula factory in the country. The regulators previously received reports that at least four babies who drank formula made at that facility fell ill with dangerous infections of the bacterium Cronobacter sakazakii, which had also been detected in the plant. Two of the infants died.