This is a fascinating read on the poor cognitive function or the "brain fog" people may feel during the pandemic. From the Guardian:
One powerful factor [leading to our poor cognitive function or "brain fog" during the pandemic] could be the fact that everything is so samey. [Catherine Loveday, professor of cognitive neuroscience at the University of Westminster] explains that the brain is stimulated by the new, the different, and this is known as the orienting response: “From the minute we’re born – in fact, from before we’re born – when there is a new stimulus, a baby will turn its head towards it. And if as adults we are watching a boring lecture and someone walks into the room, it will stir our brain back into action.”
Most of us are likely to feel that nobody new has walked into our room for quite some time, which might help to explain this sluggish feeling neurologically: “We have effectively evolved to stop paying attention when nothing changes, but to pay particular attention when things do change,” she says. Loveday suggests that if we can attend a work meeting by phone while walking in a park, we might find we are more awake and better able to concentrate, thanks to the changing scenery and the exercise; she is recording some lectures as podcasts, rather than videos, so students can walk while listening. She also suggests spending time in different rooms at home – or if you only have one room, try “changing what the room looks like. I’m not saying redecorate – but you could change the pictures on the walls or move things around for variety, even in the smallest space.”
The blending of one day into the next with no commute, no change of scene, no change of cast, could also have an important impact on the way the brain processes memories, [Jon Simons, professor of cognitive neuroscience at the University of Cambridge] explains. Experiences under lockdown lack “distinctiveness” – a crucial factor in “pattern separation”. This process, which takes place in the hippocampus, at the centre of the brain, allows individual memories to be successfully encoded, ensuring there are few overlapping features, so we can distinguish one memory from another and retrieve them efficiently. The fuggy, confused sensation that many of us will recognise, of not being able to remember whether something happened last week or last month, may well be with us for a while, Simons says: “Our memories are going to be so difficult to differentiate. It’s highly likely that in a year or two, we’re still going to look back on some particular event from this last year and say, when on earth did that happen?”
Full story here.
