How do sensory neurons share information in the brain?

  • Thread starter Geuis
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Main Question or Discussion Point

I am trying to find out some information about the nerves that deliver sensory inputs into the brain. I understand that neurons in the brain itself share thousands of connections to other neurons. The neurons that deliver sensory information into the brain at some point meet the ones in the brain itself to transfer information.
What I'm wondering is if these border neurons also have hundreds/thousands of connections to other neurons, meaning that a single sensory transmitter cell is passing the same information to multiple brain neurons, or just 1, which then uses its own connections to transfer information to the rest of the brain. Thanks!
 

Answers and Replies

  • #2
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Generally what happens is that
incoming information goes to
the main center in the brain where
that kind of information is
processed: visual, for example,
goes to the occipetal lobes,
hearing goes to a temporo-parietal
area, touch to the sensory strip
of the parietal lobes, and so
forth.

Once the info gets there and is
processed then, it would be sent
out to other areas of the brain
that further process it, parti-
cularly the limbic system where
the info is checked against
memory (what's new and what'sold
in this info?) and for danger (is
this a threat to survival of any
kind?).

All parts of the brain are con-
nected to all other parts, and
the information can be exchanged
back and forth indefinitely.

So I think the answer to your
question is that the incoming
nerves themselves are not connec-
ted to the whole brain but to
some some specific "module" which
is directly connected to several
others, which are directly con-
nected to several others, and so
on.
 

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