RE: The Origins of a New Branch of Science: Plant Neurobiology by davidrhodes124

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· @davidrhodes124 ·
I do believe that plants have very sensitive mechanisms for detecting changes in their environment. They respond to touch, cold, heat, water deficits, pathogens, herbivore feeding, wounding etc. by  altering ion transport across cell membranes, and by producing specific biochemicals including hormones such as jasmonic acid and abscisic acid. The hormones in turn have a profound effect on gene expression. I have to confess that I do prefer the name "Signaling and Behavior" over "Neurobiology" to explain these phenomena. But it is fascinating that many plants do produce molecules that are used by animals as neurotransmitters and which play a signaling role in the plants themselves  (gamma-aminobutyrate (GABA) is just one example; [Biancucci et al. (2015)](  https://www.frontiersin.org/articles/10.3389/fpls.2015.00680/full)). So I will definitely keep an open mind as you develop and pursue this field.
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@yvesoler ·
Mancuso dove into this topic the first day of class. His argument is multi-faceted, going from the fact that thinking that the human brain is the center of human behavior is limiting, since it has been shown that people who have lost large portions of their brains still express many cognitive functions associated to those specific areas. To the plant side, by showing that plants produce neuron-like molecules in the root apex transition zone; [BaluΕ‘ka et al. (2004)](http://www.esalq.usp.br/lepse/imgs/conteudo_thumb/Root-apices-as-plant-command-centres-the-unique--brain-like--status-of-the-root-apex-transition-zone.pdf). 

I wonder if all this focus on the brain has prevented us from really understanding how consciousness and behavior work?

I recently read *[Other Minds: The Octopus and the Evolution of Intelligent Life](https://www.harpercollins.co.uk/9780008226275/other-minds/)* which talked about the fact that Octopuses do not rely on just their brains, and in many cases, the brain does not even track what the arms are doing. It is as if their brains and arms are "curiously divorced" (*Cephalopod Behaviour*, Hanlon and Messenger, 1998), which could lead to the brain emitting an order that the arms decide not to follow.

So what if this is the case for humans? What if our cognitive and behavioral functions are diffused, much like they are for plants?

When I used to teach people dream retention and astral travel, I often told them that an effective technique for remembering dreams and travels was to not move upon returning as they repeated they relived their experiences over and over again in their "minds". By not moving, they could tap into muscle memory, which is where much of this was stored. I never even though it in relation to the brain, given that it was considered common knowledge in spiritual circles.
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@davidrhodes124 ·
Excellent points about cognitive and behavioral functions being diffused! The human gut is often referred to as the second brain. It produces most of the human body's serotonin (5-hydroxytryptamine), and there is a profound effect  of the gut microbiome on this (see e.g. [Yang et al. (2015)](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4393509/)). So our gut and its microbes have a significant effect on our behavior and physiology.
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@yvesoler ·
Exactly! And to think, we are only starting to explore the complex networks of relationships between organs, body parts, behaviors, and consciousness?! I have been talking to a researcher that wants to conduct experiments on plant consciousness, but to do that, I keep asking him to define human consciousness. A quick search on any of the leading publications sites on  "human consciousness" will lead to hundreds of papers, many of which conflict one with the other.  So imagine what will happen when we try to give a definition to plant consciousness? This is why at the LINV, the focus is to start with decision making and awareness. The more they show that plants can make decisions by analyzing a series of factors and consciously choosing one, then you have "awareness" which gets you closer to what is commonly thought of as "consciousness", don't you think?

I am glad to see that science is starting to look beyond the brain to understand human behavior. Personally, I think this is going to open the way for a whole new understanding of what makes people tick and the role of humanity in a much greater ecosystem... or at least I hope so!
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