Knowing thy self…

Interoception is the awareness of our physiological states; it’s how animals and humans know they’re hungry or thirsty, and how they know when they’ve had enough to eat or drink. But precisely how the brain estimates the state of the body and reacts to it remains unclear. In a paper published in the journal Neuron, neuroscientists at Beth Israel Deaconess Medical Center (BIDMC) shed new light on the process, demonstrating that a region of the brain called the insular cortex orchestrates how signals from the body are interpreted and acted upon. The work represents the first steps toward understanding the neural basis of interoception, which could in turn allow researchers to address key questions in eating disorders, obesity, drug addiction, and a host of other diseases. (1)

I feel hungry.

I know I am.

My brain thinks so.

Based on input from the stomach.

I feel alive.

My brain thought of that.

Based on input from the stomach.

I feel existing.

My brain thought of that.

Based on input from the stomach.

Do you feel it?

My stomach feels weird…

I know it is just my stomach.

Based on input from… ?

Brain. One with the body. Falling in love.

At a small eatery in Seville, Spain, Alan Jasanoff had his first experience with brains — wrapped in eggs and served with potatoes. At the time, he was more interested in finding a good, affordable meal than contemplating the sheer awesomeness of the organ he was eating. Years later, Jasanoff began studying the brain as part of his training as a neuroscientist, and he went on, like so many others, to revere it. It is said, after all, to be the root of our soul and consciousness. But today, Jasanoff has yet another view: He has come to see our awe of the organ as a seriously flawed way of thinking, and even a danger to society.

In The Biological Mind, Jasanoff, neuroscientist at MIT, refers to the romanticized view of the brain — its separateness and superiority to the body and its depiction as almost supernatural — as the “cerebral mystique”. Such an attitude has been fueled, in part, by images that depict the brain without any connection to the body or by analogies that compare the brain to a computer. Admittedly, the brain does have tremendous computing power. But Jasanoff’s goal is to show that the brain doesn’t work as a distinct, mystical entity, but as a ball of flesh awash with fluids and innately in tune with the rest of the body and the environment. “Self” doesn’t just come from the brain, he explains, but also from the interactions of chemicals from our bodies with everything else around us.

To make his case, Jasanoff offers an extensive yet entertaining review of the schools of thought and representations of the brain in the media that led to the rise of the cerebral mystique, especially during the last few decades. He then tears down those ideas using contrary examples from recent research, along with engaging anecdotes. For instance, his clear, lively writing reveals how our emotions, such as the fight-or-flight response and the suite of thoughts and actions associated with stress, provide strong evidence for a brain-body connection. Exercise’s effect on the brain also supports this notion. Even creativity isn’t sacred, often stemming from repeated interactions with those around us. (1)

An interesting viewpoint. But a very limited one.

It is not just the brain connected to your body.

It is your body connected with others.

It is your mind connected with everything else.

Would you be afraid without your stomach?

Could you speak without your food?

Would you dream without your heart?

Could you cry without your daughter?

Your soul is connected with the cosmos.

Yes, you are your body. And your mind. And your brain. And your heart. And your mother. And your children. And everything around you. You are these things and these things are you. Look at the stars in the vast cold space. They are there. And you are here. And yet, you wouldn’t be able to fall in love without them. Look at the stars in the sky. You are here. And they are there. And yet, they couldn’t even shine without you…

Phantom reality… Affecting reality…

In breakthrough research led by neuroscientist Olaf Blanke and his team at EPFL, Switzerland, the scientists show that phantom body pain can be reduced in paraplegics by creating a bodily illusion with the help of virtual reality. The results are published in Neurology.

“We managed to provoke an illusion: the illusion that the subject’s legs were being lightly tapped, when in fact the subject was actually being tapped on the back, above the spinal cord lesion,” explains Blanke, lead author of the study and holder of the Foundation Bertarelli Chair in Cognitive Neuroprosthetics. “When we did this, the subjects also reported that their pain had diminished”. (1)

Illusions in the mirror.

Affecting the reflection…

And yet the reflection is real.

Just don’t disturb the water…

Brain, body, DNA, “uniqueness”…

It was once thought that each cell in a person’s body possesses the same DNA code and that the particular way the genome is read imparts cell function and defines the individual. For many cell types in our bodies, however, that is an oversimplification. Studies of neuronal genomes published in the past decade have turned up extra or missing chromosomes, or pieces of DNA that can copy and paste themselves throughout the genomes. (1)

Our neurons do not seem to all have the same genome. (2)

If it not the DNA sequence, then what “mystery” does rule our body? Could it be…something NOT in our body? Nuh! My free will based on my deterministic DNA-based body cannot accept that! 🙂

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