Tag Info

New answers tagged

0

Actually, for your example it would be pretty easy to adapt. You just have a 25.5 hour day with 12.75 hours of day and 12.75 hours of night. Except you have a 4.25 hour period in the middle of the day where you stay inside and use lights (like in the evening for most people on Earth) and a 4.25 hour period at night where you make sure your eye mask is on. ...


0

Humans have evolved for 24 hour days and our bodies would not adapt well to this short of sleep/wake cycles (whether or not they were born there, unless they have been there for many generations and have been able to evolve for the new time). Our bodies would still want to spend about the same amount of time sleeping and being awake. If we tried to adjust ...


3

Crossing or decussation is a lot more robust against wiring errors than their seemingly simpler same-sided wiring counterparts. See here for the research carried out to establish this and for more detail.


1

It is very likely what they mean by "neurotransmitters flooding the brain" is the phenomenon called Volume Transmission. I paraphrase from this source: When a neurotransmitter is released at a synapse, it reaches its highest concentration inside the narrow space of the synaptic cleft, but some of it is certain to diffuse away before being reabsorbed ...


4

Yes, they do. A blog post on the National Geographic website describes the results of a study about how blind people dream.(1) The participants who were born blind did not report any visual impressions. Among those who previously had sight, the number of visual impressions reported decreased with the time since loss of sight. Just as there are many ways ...


2

The cones and rods would not contain the images from our dreams. Visual scenes get transferred from the eye to the thalamus (which serves as a relay to the cortex) by optical fibers that are overwhelmingly uni-directional (information is carried from the eyes to the thalamus and not vice-versa). Dreams do, however, activate the thalamus, the visual cortex, ...



Top 50 recent answers are included