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Robert Lanza, M.D.

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Can a Tree Consciously Experience the World?

Posted: 04/01/11 09:53 AM ET

In "Avatar," humans mine a lush moon inhabited by blue-skinned extraterrestrials, the Na'vi, who live in harmony with nature. Human military forces destroy their habitat despite objections that it could affect the bio-network connecting its organisms. On the eve of the big battle, the protagonist Jake communicates via a neural connection with the Tree of Souls, which intercedes on behalf of the Na'vi.

The movie suggests that we don't understand the conscious nature of the life that surrounds us.

Although I saw the movie three times, I still cringe whenever someone tells me that a plant has consciousness. As a biologist, I can accept that consciousness exists in cats, dogs and other animals with sophisticated brains. Studies show that dogs have a level of intelligence -- and consciousness -- on par with a two- or three-year-old human child. In fact, in 1981, I and Harvard psychologist B.F. Skinner published a paper in Science showing that even pigeons were capable of certain aspects of self-awareness. But a plant or a tree? To consider the possibility seemed absurd -- until the other day.

My kitchen merges into a conservatory, a mini-rainforest with palms and ferns. While having breakfast, I looked up at one of my prize specimens, a Queen Sago tree. For the last several months I'd been watching it send up new fronds, which, since the winter solstice, have been repositioning themselves towards the shifting sun. During that time I also watched it respond to an injury to its trunk by sending out air-roots in search of new soil to re-root itself. It was a clever life-form, but clearly not conscious in any known biological way.

Then I remembered the episode of "Star Trek" called "Wink of an Eye." In this episode, Captain Kirk beams down to a planet and finds a beautiful but empty metropolis. The only trace of life is the mysterious buzzing of unseen insects. When he returns to the ship, the crew continues to hear the same strange buzzing sound. Suddenly, Kirk notices that the movements of the crew slow down to a stop, as if time itself were being manipulated. A beautiful woman appears and explains to Kirk that the bridge crew hasn't slowed down, but rather, he has been sped up, having been matched to the Scalosians' "hyper-accelerated" physical existence. Back in real time, Spock and Dr. McCoy figure out that the strange buzzing is the hyper-accelerated conversations of aliens that exist outside normal physics.

We think of time -- and thus consciousness -- in human terms. In my mind, I could easily accelerate the plant's behavior like a botanist does with time-lapse photography. The feathery creature, there in my conservatory, responded to the environment much like a primitive invertebrate. But there was more to it than that. We think time is an object, an invisible matrix that ticks away regardless of whether there are any objects or life. Not so, says biocentrism. Time isn't an object or thing; it's a biological concept, the way life relates to physical reality. It only exists relative to the observer.

Consider your own consciousness. Without your eyes, ears or other sense organs, you would still be able to experience consciousness, albeit in a radically different form. Even without thoughts, you would still be conscious, although the image of a person or tree would have no meaning. Indeed, you wouldn't be able to discern objects from each other, but rather would visually experience the world as a kaleidoscope of changing colors.

Like us, plants possess receptors, microtubules and sophisticated intercellular systems that likely facilitate a degree of spatio-temporal consciousness. Instead of generating a pattern of colors, the particles of light bouncing off a plant produce a pattern of energy molecules -- sugar -- in the chlorophyll in its stems and leaves. Light-stimulating chemical reactions in one leaf cause a chain reaction of signals to the entire organism via vascular bundles.

Neurobiologists have discovered that plants also have rudimentary neural nets and the capacity for primary perceptions. Indeed, the sundew plant (Drosera) will grasp at a fly with incredible accuracy -- much better than you can do a fly-swatter. Some plants even know when ants are coming towards them to steal their nectar and have mechanisms to close up when they approach. Scientists at Cornell University discovered that when a hornworm starts eating sagebrush (Artemisia tridentata), the wounded plant will send out a blast of scent that warns surrounding plants -- in the case of the study, wild tobacco (Nicotiana attenuata) −- that trouble is on its way. Those plants, in turn, prepare chemical defenses that send the hungry critters in the opposite direction. Andre Kessler, the lead researcher, called this "priming its defense response." "This could be a crucial mechanism of plant-plant communication," he said.

As I sat in the kitchen that day, the early-morning sun slanted down through the skylights, throwing the entire room into gleaming brightness. The Queen Sago tree and I were both "happy" the sun was out.

***

Robert Lanza, M.D. has published extensively in leading scientific journals and has over two dozen books, including "Biocentrism," which lays out his theory of everything. You can learn more about his work by visiting his website at www.robertlanza.com.

 
 
 

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In "Avatar," humans mine a lush moon inhabited by blue-skinned extraterrestrials, the Na'vi, who live in harmony with nature. Human military forces destroy their habitat despite objections that it co...
In "Avatar," humans mine a lush moon inhabited by blue-skinned extraterrestrials, the Na'vi, who live in harmony with nature. Human military forces destroy their habitat despite objections that it co...
 
 
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boomer7391
Beliefs are the seeds of evil.
09:11 PM on 04/14/2011
Every life form has consciousness. Consciousness is defined as the state of being awake and aware of one's surroundings. That has been proven over and over with almost every life form. Not sure why this is even an issue except the writer seems to want to infer by his word usage that trees "experience" consciousness the way humans do and that's absurd. All life forms have experiences as well but they are different for each species whereas consciousness is the same across species. Even amongst humans, both of whom are conscious, they can have different experiences of the same thing.

Science is science and memoir and while the author writes incredibly good memoir I find his science to be lacking...uh...consciousness.
01:27 PM on 04/07/2011
Dr. Lanza

Lets expand the notion to anything that is alive is conscious. And then take the un-provable and quantum step of saying the Earth, the stars are conscious as well. If the Universe has a propensity for consciousness as you state in Biocentrism, then we can think of the planets and stars as Old Beings moving steadily through the cosmos. We are symbiots living on the surface. Of course, I am a proponent of the Gaia Theory.

Also, I think you were not truthful in your premise that you cringe when you hear that plants are conscious. You used that as a primer for the article to snatch in the skeptical.

My one thought / question to you - you are scratching the surface with you writings and your book. You have posited and put out the premise. Is it not time for you to go deeper with your thoughts? And not in trying to provide further theory and concept. You have done that already. Share the next level of what you are striving to say. I for one am avidly reading and listening.
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Wes Isley
Writer and interfaith minister
12:58 PM on 04/05/2011
I think there's more to life and this world than we can physically see or detect. That perspective keeps arrogance at bay.
11:26 PM on 04/04/2011
Ah, a Druid are you?
08:41 PM on 04/04/2011
I really hope they don't, because If trees have consciousness than I am even more disturbed by our culture.
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sus2222
My micro-biology is FULL
06:38 PM on 04/04/2011
I have known a few people with LESS consciousness than the average tree.
04:51 PM on 04/04/2011
One of my favorite tshirts reads "If trees could scream, no one on earth would ever sleep again." While I value and respect trees, I've grown to hate the 7 trees in my yard and want to replace them with different trees. These trees are too crowded, growing into each other and looking mangy. They're also those scrubby desert trees and I can't stand them. I never understood a homeowner cutting down a beautiful oak, maple, birch, fruit tree that added shade and habitat to their properties. But I am about to become one of those people, removing some trees. They will be replaced though, with trees that are properly spaced and happy.
12:39 AM on 04/07/2011
Why replace them? Why not just remove the worst offenders and do some expert pruning on the remaining tree(s)? That way you don't have to start from scratch or spend several thousand dollars on huge specimen trees.
03:21 PM on 04/04/2011
When I was a kid my Dad and I built a tree house in a huge oak tree.I spent most of my childhood on that tree and around it.Even as a teen that tree was home for me. Then the Airport at the end of the property said the tree had to go. I was at school High School. Something was wrong that day I felt like my heart was being ripped out. It was about 8:00 in the morning. When I got home I burst into tears they were taking her down. I sat there and watched the life leave her. My out look on life that day changed. I realized people do not see the world as I do. That was 43 years ago and I remember it like yesterday
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stargazer13
To Love One Is To Love All
01:11 PM on 04/04/2011
Tree,s have intelligence all living things do !
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Roadrun
Question Authority
09:46 AM on 04/03/2011
I imagine we humans don't accurately define life or consciousness. We only have our own perspective, which is limited.

A small example: I read where a study was done to see if dogs had an ability to be happy or sad. My dog got anxious because it took me too long to read, he wanted to go to the park and play.
07:16 AM on 04/03/2011
Intelligence is really very subjective. Take the intelligence of a dog.
People trying to measure a dog's intelligence compare the dog's abilities to a human's: language skills, mechanical skills,... and the dog comes out looking pretty stupid. But drop a domesticated dog and a human out in the middle of a wilderness and see which one finds food, avoids predators, keeps from freezing, in short which one could survive a week even giving the human the edge of clothing?
All living things must have some kind of conciousness or they would die. Life IS conciousness.
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DakkonA
www.DisentangledReality.com
09:43 AM on 04/03/2011
that's a huge leap from dogs to all life. Dogs, at the least, have a central nervous system.
04:52 PM on 04/04/2011
You guys with your "central nervous system=life/consciousness/value, etc." are actually
direct decendants of the Darwinian and Freudian theory of evolution. You HAD to put
limits on everything to justify life. Darwin couldn't otherwise account for a God that allowed
bad things to happen to good people. He was a religious man you know, but his befuddled
religious beliefs carried over into his view of life--i.e., evolution and 'survival of the fittest'--a
point of view that pervades almost every aspect of our lives today--economics, medicine,
manufacturing, politics, religions. and the list goes on.
As fpie said, Life IS consciousness and everything that exists has consciousness, everything!
It may not be 'man consciousness' or 'animal consciousness', but it HAS a consciousness
in keeping with its kind whether science can find it and label it or not. (Won't be the first time.)
Go hug a tree.
12:42 AM on 04/07/2011
There are objective measures of intelligence.
But there are many varieties of intelligence as well.
The standard IQ tests measure one type of intelligence.
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Yvonne Serocki
wellness is inspired
09:53 PM on 04/02/2011
Trees definitely have consciousness! Have you ever sat under a tree and meditated? Have you ever silently communicated with a tree? Have you ever sat with your back up against a trunk, merged your consciousness with the trunk, and descended down inside the roots into the dark, cool, fecund soil? Going down a tree root is a common way of visiting the lower worlds during a shamanic journey. A wonderful exercise is to commune with a tree that catches your attention. Start by writing a scientific report about the tree. Include all the observable, measurable, objective facts. Next write a poem about the tree. The last step is to write a story as if you were the tree itself, from the consciousness of the tree. Ask the tree questions and be still and silent and wait for a response. You may be surprised at the answers! The last step of the exercise is to read the three descriptions of the tree out loud and notice the incredible differences in the three different ways of knowing!
www.newheavenonearth.wordpress.com
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Runtime Al
The truth hurts.
01:51 PM on 04/04/2011
Having tripped in the 70's and 80's, everytime I would look at trees, it was obvious they had intelligence.
And you could tell the degree of intelligence by the shape and number of branches. Most people will think I'm nuts, but I swear to God I believe this to be true. You can't really see it when you're straight. Ask other people who have tripped what they think. I bet you'll get a lot of positive answers.
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Yvonne Serocki
wellness is inspired
04:10 PM on 04/04/2011
I find it fascinating that those who have explored deeper, higher consciousness through meditation describe very similar states of consciousness as those who have used hallucinogenic substances. Isn't it amazing that we have access to every chemical, drug, and infinite state of consciousness NATURALLY with just our intention, attention, and willingness to sit in silence and stillness within. The best thing about meditating naturally is there are no harmful side effects.
10:55 PM on 04/04/2011
You CAN see it while you're straight, just takes a lot more discipline/energy. All of us who have experienced this way of seeing know it is no hallucination; but it is nearly impossible to put into words, especially in the current climate of reductive materialism (everything must be reduced to a physical or material state). This idealogical bias can only allow intelligence or self-awareness in a specific physical location, i.e. a brain. And personal experience to the contrary doesn't count, because it cannot be measured or made manifest.
By the way, what's with the Whalers logo?! Go Wolfpack! Oops, I mean Whale.;-)
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Alicia Westberry
college student & blogger
07:50 PM on 04/02/2011
This was another interesting article. It made me think in ways I've never really considered. I certainly do believe that every living thing has consciousness; just not in a form humans typically recognize. We humans tend to have the arrogance that if something doesn't exist in a form familiar to us than it simply doesn't exist.
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onlyThis
All I Am is You
07:32 PM on 04/02/2011
Dr Lanza, I love reading your columns. Even when I disagree or don't really understand, they always make me think in new directions. Thank you.
07:08 PM on 04/02/2011
So now what did your coffee "think" about being roasted, steamed, and sipped?