![]() ![]() Memory recall, which refers to retrieving previously learned information, was affected in 23% of the participants, and the time taken to complete a mental task, or the processing speed, was slower in 18%. On assessment, 24% of the participants had problems with learning new information, known as memory encoding. They recorded cognitive impairment in any category in which the person scored more than 1.5 standard deviations below the expected norm for their age, educational level, and sex. The researchers gave the participants a score for each of the assessed categories. The mean time since COVID-19 diagnosis was 7.6 months. The team adjusted the results for race, ethnicity, smoking, body mass index, comorbidities, and depression. They either had serum antibody positivity or had previously tested positive for SARS-CoV-2. The researchers used well-validated neuropsychological measures to investigate attention, working memory, processing speed, executive functioning, memory encoding, memory recall, and recognition.Īll of the participants were aged 18 years or older with a mean age of 49 years and no history of dementia. All had received hospital treatment for COVID-19, as either outpatients, inpatients, or patients in the emergency department. The cross-sectional study assessed the cognitive functioning of 740 people who had recovered from COVID-19 between April 2020 and May 2021. Jacqueline Becker of the Icahn School of Medicine at Mount Sinai, NY, told Medical News Today, “One of the main strengths of our study was that we had reliable and valid in-person cognitive measures.” The corresponding author of the study, Dr. In this new study, all participants underwent in-person psychological testing to assess cognitive function. However, most other studies to date, including a large cohort study in the United Kingdom, have used self-reported confirmation of SARS-CoV-2 infection and online questionnaires to assess cognitive deficit. This study adds to evidence from previous work on long COVID. A new study featuring in JAMA Network Open has found that COVID-19 survivors may experience cognitive impairment, known colloquially as brain fog, for several months after diagnosis. ![]()
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