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Author Topic:   How many senses are there?
onifre
Member (Idle past 2973 days)
Posts: 4854
From: Dark Side of the Moon
Joined: 02-20-2008


Message 24 of 28 (515254)
07-16-2009 5:35 PM
Reply to: Message 23 by Dr Jack
07-16-2009 4:50 AM


Re: Additional
Hi Mr. Jack,
(unless you perform the trick of lumping a vast number of independent senses into one set).
But some are part of the same system.
Touch encompasses all of these:
6. Heat
7. Cold (we actually have different receptors for heat and cold)
8. Proprioception (sensory awareness of posture and position, vital for balance and movement)
9. Nociception
It's the same receptor: Cutaneous receptor
quote:
With the above mentioned receptor types the skin can sense the modalities touch, pressure, vibration, temperature and pain. The modalities and their receptors are partly overlapping, and are innervated by different kinds of fiber types.
Found in the somatosensory system.
quote:
The somatosensory system is a diverse sensory system comprising the receptors and processing centres to produce the sensory modalities such as touch, temperature, proprioception (body position), and nociception (pain).
Acceleration/balance (the vestibular organs, which although located in the ear are entirely separate in function and have their own nerves)
But they are not seperate and equilibrioception/balance only functions as a result of other senses working together. It is not independent.
quote:
Balance is the result of a number of body systems working together. Specifically, in order to achieve balance the eyes (visual system), ears (vestibular system) and the body's sense of where it is in space (proprioception) need to be intact. Also the brain, which compiles this information, needs to be functioning normally.
I would say we have many senses, both for external use and internal use. But as far as the external goes we have 5, and the other senses branch off of these.
- Oni

If it's true that our species is alone in the universe, then I'd have to say that the universe aimed rather low and settled for very little.
~George Carlin

This message is a reply to:
 Message 23 by Dr Jack, posted 07-16-2009 4:50 AM Dr Jack has replied

Replies to this message:
 Message 25 by Dr Jack, posted 07-16-2009 5:54 PM onifre has replied

  
onifre
Member (Idle past 2973 days)
Posts: 4854
From: Dark Side of the Moon
Joined: 02-20-2008


Message 26 of 28 (515259)
07-16-2009 6:24 PM
Reply to: Message 25 by Dr Jack
07-16-2009 5:54 PM


Re: Additional
Read your link more closely, my friend, those are different types of receptor. Even more so, as you look at the operation thereof.
I apologies, I quoted the wrong link. I meant to link this: Cutaneous mechanoreceptors.
quote:
Cutaneous mechanoreceptors provide the senses of touch, pressure, vibration, proprioception and others.
A system is not sense; a sense is a sense. Yes, there are commonalities in how differing sense are conveyed but they do, none-the-less, carry differing information.
Fair enough, but I was just trying to show that the senses: touch, temperature, proprioception, and nociception are part of the same sensory system.
Balance was a misnomer, none-the-less the information conveyed by the vestibular organs stand seperate from other senses.
I don't think I follow.
The vestibular sense is the same as equilibrioception, or the sense of balance. It would not function properly without the other senses.
I agree that they stand seperately, but if it can't function properly without the other senses I believe this makes it a secondary branch of the original senses. I think...?
You do not see the world as it is directly conveyed by your eyes but as it is reconstructed by your brain. You do not hear speech as conveyed by the systems in your ear (which, btw, are very cool - they're effectively performing a biological Fourier transform) but as post-processed by your brain to identify sounds relevant to the language you know.
But the senses are independent of the brain. Our brain receives the information and makes a representation of reality based on the info it got from its sensory inputs. IMO this is not the same as saying vision is required for balance. The brain compiles all the info and processes it, but that is secondary to the actual, initial sensing of what we interacted with.
- Oni

If it's true that our species is alone in the universe, then I'd have to say that the universe aimed rather low and settled for very little.
~George Carlin

This message is a reply to:
 Message 25 by Dr Jack, posted 07-16-2009 5:54 PM Dr Jack has replied

Replies to this message:
 Message 27 by Dr Jack, posted 07-17-2009 4:22 AM onifre has replied

  
onifre
Member (Idle past 2973 days)
Posts: 4854
From: Dark Side of the Moon
Joined: 02-20-2008


Message 28 of 28 (515813)
07-21-2009 1:22 PM
Reply to: Message 27 by Dr Jack
07-17-2009 4:22 AM


Re: Additional
Thanks for the corrections on my misunderstandings, Mr. Jack.
It's been a long time since I've looked at this field of science.
I have, since I replied to your post, begun to brush up on it and it seems I was mistaken on a few things. I'll continue to look into it and if I have any questions/remarks I'll bring them to this thread.
Thanks again,
- Oni

This message is a reply to:
 Message 27 by Dr Jack, posted 07-17-2009 4:22 AM Dr Jack has not replied

  
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