Based on the assertions you were making above, I was expecting the study you linked to have to do with cognitive impairment and masks. Its only discussion of m

Based on the assertions you were making above, I was expecting the study you linked to have to do with cognitive impairment and masks. Its only discussion of masks is a theory that perhaps the fact that test administrators wearing masks might have affected the measurement of the results. "Although all study visits were performed in-person, the inability of infants to see full facial expressions may have eliminated non-verbal cues, muffled instructions, or otherwise impair the understanding of test questions and instructions. Without direct comparison of performance in the same children with and without face masks, it is difficult to rule in or out the potential influence of masks."