On 50% sleep today. Most operations were as usual, being rather unviolent activities. No running, no gym. Just clearing the backlog of reading at the desk, food, and a walk. The walk is a recently imposed routine - for DMN exercise.
During higher resistance activities, I think the CEN is dominant - jogging is not done in a safe place, so it is essentially an hour of risk management. Walking, apparently I can manage at a lower risk-level. I schedule in 8k steps per day, per conventional guidelines. I think I can do some other things during DMN time : I can do twisty puzzles and study knots while walking, or replace walking with skateboarding or cycling. I have been back at this for a few days, and I am still thinking about how it works.
I was raised in a tradition of doing daily "quiet times" for religious practice - I don't practice that now. In college, I walked a lot, and had plenty of time to think about things without risk. 2005 to 2015 was a mixed bag : a lot of CEN drills, with weekends, in a sense. Work between 2015 and 2020 was highly focused on CEN stuff, being on foot all shift, from 8 to 36 hours at a go, and on-call 24-7. So I suppose it is appropriate to force this sort of thing back into my schedule, for balance of mental conditioning.
From what I can tell the "quiet time" or more concretely, DMN exercise, is helping to normalise dopaminergic tonality, the baseline signal. This makes it easier to exercise active/phasic dopaminergic activities during CEN work for the rest of the day. Proper dopaminergic form vis-a-vis CEN helps with the rate of reading and integratign new information, to a non-trivial degree.
Rather hypothetical at this stage.
More stuff I think, that can be scheduled into DMN time : rumination on vague concepts, for example when studying new terminology, or thinking about maths and architectural problems
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