Oh, love is very much a physical thing.... I realize that it's very complicated, and I'm sure it can't be traced to individual neurons and hormones, but I think it's very much a physiological sensation that takes place in the brain.
Maybe I don't have the most common kind of motor neuron disease, which usually kills in two or three years.
Life and consciousness are the two great mysteries. Actually, their substrates are the inanimate. And how do you get from neurons shooting around in the brain to the thought that pops up in your head and mine? There's something deeply mysterious about that. And if you're not struck by the mystery, I think you haven't thought about it.
We sleep, allowing gravity to hold us, allowing Earth - our larger body - to recalibrate our neurons, composting the keen encounters of our waking hours , stirring them back, as dreams, into the sleeping substance of our muscles.
The structure of the human brain is enormously complex. It contains about 10 billion nerve cells (neurons), which are interlinked in a vast network through 1,000 billion junctions (synapses). The whole brain can be divided into subsections, or sub-networks, which communicate with each other in a network fashion. All this results in intricate patterns of intertwined webs, networks of nesting within larger networks.
It might be thought the height of poor taste to ascribe good fortune to a healthy man with a young family struck down at the age of sixty by an incurable degenerative disorder from which he must shortly die. But there is more than one sort of luck. To fall prey to a motor neuron disease is surely to have offended the Gods at some point, and there is nothing more to be said. But if you must suffer thus, better to have a well-stocked head.
If my dramatic career doesn't work out, I will go on to research and find cures for Alzheimer's or Parkinson's and other motor neuron diseases. It's a very exciting field of research. But I'd like to continue in drama, so it wouldn't be very smart of me if I blew this amazing opportunity with an inappropriate lifestyle.
Throughout our lifetimes we are constantly regenerating new brain cells in the hippocampus, a process called neurogenesis. New stem cells are constantly being born in the hippocampus that ultimately differentiate into fully functional neurons.
I don't have much positive to say about motor neuron disease, but it taught me not to pity myself because others were worse off, and to get on with what I still could do. I'm happier now than before I developed the condition.
It's this expandable capacity to represent reasons that we have that gives us a soul. But what's it made of? It's made of neurons. It's made of lots of tiny robots. And we can actually explain the structure and operation of that kind of soul, whereas an eternal, immortal, immaterial soul is just a metaphysical rug under which you sweep your embarrassment for not having any explanation.
The well-being of a neuron depends on its ability to communicate with other neurons. Studies have shown that electrical and chemical stimulation from both a neuron's inputs and its targets support vital cellular processes. Neurons unable to connect effectively with other neurons atrophy. Useless, an abandoned neuron will die.
Mirror neurons make human empathy possible.
Every thought, feeling, and emotion creates a molecule known as a neuropeptide. Neuropeptides travel throughout your body and hook onto receptor sites of cells and neurons. Your brain takes in the information, converts it into chemicals, and lets your whole body know if there's trouble in the world or cause for celebration. Your body is directly influenced as these molecules course through the bloodstream, delivering the energetic effect of whatever your brain is thinking and feeling.
Children have a ton of mirror neurons when they are babies and kids and they mimic what they see and so heroes are important because we are watching these heroes make a difference in these peoples lives and sacrificing their lives in some cases and I think it is really important to know that it is not just about us but about the community.
Studies of decision-making in the monkey, where activity of single neurons in parietal cortex is recorded, you can see a lot about the time-accuracy trade-off in the monkey's decision, and you can see from the neuron's activity at what point in his accumulation of evidence he makes his decision to make a particular movement.
We actually do generate some new cells, some new neurons. So in the case of trauma there is the potential for there to be some new neural development which gives the person the chance to create new circuitry.
Since the idea that modification of synaptic function can provide a basis for memory arose shortly after the first anatomical description of the synapse a number of models (Hebb 1949 . . Hayek 1952 . . Kendel 1981) have been proposed in which various cognitive activities are represented by combinations of the firing patterns of individual neurons.
There is no scientific theory that could lead us from a detailed map of every single neuron in someone's brain to a conscious experience. We don't even have the beginnings of a theory whose conclusion would be "such a system is conscious.
Scientists tracking mirror neurons noticed that a monkey will get excited not just when holding a banana, but also when seeing someone else holding a banana.
The first attempts to consider the behavior of so-called "random neural nets" in a systematic way have led to a series of problems concerned with relations between the "structure" and the "function" of such nets. The "structure" of a random net is not a clearly defined topological manifold such as could be used to describe a circuit with explicitly given connections. In a random neural net, one does not speak of "this" neuron synapsing on "that" one, but rather in terms of tendencies and probabilities associated with points or regions in the net.
There is no real independent self, aloof from other human beings, inspecting the world, inspecting other people. You are, in fact, connected not just via Facebook and Internet, you're actually quite literally connected by your neurons.
In our constant search for meaning in this baffling and temporary existence, trapped as we are within our three pounds of neurons, it is sometimes hard to tell what is real. We often invent what isn't there. Or ignore what is. We try to impose order, both in our minds and in our conceptions of external reality. We try to connect. We try to find truth. We dream and we hope. And underneath all of these strivings, we are haunted by the suspicion that what we see and understand of the world is only a tiny piece of the whole.
As a bio major, I figured "free will" meant chemicals in your brain telling you what to do, the molecules bouncing around in a way that felt like choosing but was actually the dance of little gears--neurons and hormones bubbling up into decisions like clockwork. You don't use your body; it uses you.
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