Tuesday, June 11, 2019

The Truth About Neurons and Synapses


Very slow Synaptic delays, synaptic fatigue and the slower transmission speed of dendrites should prevent brain signals in the cortex from traveling at much more than a snail's pace of about a centimeter per second.
Very volatile and unstable Synapses and dendritic spines are made of proteins with lifetimes of only a few weeks or less, and individual synapses and individual dendritic spines don't last for years, unlike memories lasting decades.
Very noisy There are many types of noise in neurons and synapses which should strongly inhibit reliable signal transmission.
Not addressable There is no position location system in the brain by which some exact neural location could be looked up by using its address, to achieve fast recall.
Signal-suppressive A synapse in the cortex will transmit a signal with a likelihood of between .1 and .5, which means brain signals are constantly being suppressed.
Disorganized Neurons are like the spaghetti mess in a huge cafeteria pot, and are not highly grouped into organizational units like letters in a book or computer components.
Indistinct No one has discovered any distinctive marks or signs of encoded information in neurons or synapses other than the DNA information about the same in every cell.
Neither readable nor writable No one has been able to specify how episodic memory information could be written to or read from neurons or synapses.
Largely dispensable There are many medical cases of people suffering little damage to their minds or memory even though they lost very much of their brains, as much as 50% or 75% or more. 
For supporting information, see www.headtruth.blogspot.com

We see above some of the reasons for thinking the human brain is not the source of the human mind, and is not the storage place of human memories. Click on the links in the left column for posts that support these claims. 

The image below restates the same information: