Vegetable Tennis: Not as Great as it Sounds.

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One of psychology's many unanswered questions is this: Is there a way to know someone still has conscious awareness? For a long time, doctors didn't have a way of proving someone was still self-aware. Now, Professor Adrian Owen believes he's found one. In Owen's method, he asks vegetative patients to imagine they're playing tennis while monitoring their neural activity. If he observes activity in the premotor cortex, correspondent to mental imagery, it is evidence of higher thought, something only a conscious person can do. Because of his findings, people previously thought to be brain dead have been shown to have a 'different' relationship with the outside world.

If you ask me, I'd say Owen doesn't prove a whole lot with this. Does being able to imagine yourself playing a game of tennis really qualify as consciousness? In my eyes, 'vegetative state' is a sealed fate that doesn't offer much of an existence. My consciousness questions aren't about holding onto it- they're about letting it go.

In 2005, I knew a man that was terminally ill. He took a turn for the worse, and doctors gave him a few weeks to live. This man fought his illness solely to help his family, that was his goal. The night of that diagnosis, he said to his wife, "I won't be able to help you any more," and passed away in his sleep a few hours later.

My question is this: How much power does the mind have over one's life? Can the will to fight really keep one alive? Can someone actually will their self to pass on?

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i found this part of the movie a bit hard to understand as well. while, i think it is so cool that we can use technology to see what the brain is doing when asked to imagine doing an activity or asked a mathematical question,i dont see how asking someone to pretend to play something like tennis is showing us that we are conscious. after reading your post i was thinking of the term, mind over matter. we hear about all these people who struggle, keep faith and push through a terrible disease and how adrenaline keeps people fighting in the most horrible situations and so i would like to believe that we have some power over our being and that with enough faith we can over come just about anything. however the idea of someone willing their self to pass on is hard to believe. a perfectly healthy person cant go to be bed tonight and say, i wanna die tonight, im going to shut my body down and not wake up in the morning. so i think this part left me just as confused as you.

I think that activity in the brain due to a stimulus such as "imagine yourself playing tennis" can be held as a good argument for consciousness in the vegetative state. Seeing activity shows that the person received the information, processed it and then applied it in the best way they could. I think mind over matter can work to an extent, if someone is diagnosed with a terminal illness I like to think persevering and trying to fight it will give a better chance of survival than giving up and waiting for death. One is an example of conscious effort to continue human life, which the body is naturally programmed to want to do, and the other goes against the nature of humanity.

I agree with the above comment that since this person who is under vegetated state is capable of understanding the command and creating a mental picture that person is as conscious as can be. If that person was unconscious the brain would have never picked up the command and allowed that person to mentally capture the tennis playing image.

Your last question is also quite interesting. I think the mind can at some degree help a person fight for their life and also help someone willfully give up on their life. We see it in movies all of the time and sometimes even hear about it happening; people fall into comas and are still very much alive because their brain is still functioning and their heart is still pumping. The body hasn’t given up on that person yet because that person is fighting for his/her life. In order for the rest of the body to keep working the brain has to allow this to happen. Because of that I think the brain/mind plays a huge role in our lives even though we may not think so.

I also agree that if there if brain activity in the area they are asked to imagine, that it is being consciously aware. Even though they are not able to act it out, they can still think about it and imagine it. I also think that the brain has a huge part in how we show strength and keep working as it should. If someone believes that they are hurt, they usually actually become hurt even if they did not do anything to hurt that area.

I agree with you, living in a vegetative state isn't much. I would soon drive myself crazy imagining playing tennis and not being able to physically play tennis I would become very frustrated with myself.

My grandpa recently had alzheimer's and passed away. But the past year before he died, he couldn't talk or recognize anyone. To me, he totally lost sense of his consciousness, even though that isn't technically the scientific definition defined here in this article.

Nice debate. It seems that where you stand on the issue of whether this research actually proves that people in vegetative states have consciousness probably depends on what your definition of consciousness is.

This is dialogue on the issue. For me personally if there is some level of self awareness, i would consider it to be consciousness. Even so measuring self awareness in many of these cases would not be a simple matter.

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This page contains a single entry by kauff062 published on February 20, 2012 6:11 PM.

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