There's 10,000 neurons here.

Ed Boyden A light switch for neurons

So there's about 86 billion neurons in our brain.

The branches of neurons are like the wires of the brain.

The unique character of both individual neurons and neurons within a collection of the brain are driven by fundamental properties of their underlying biochemistry.

We can use less or more of them.

There are 100 billion neurons in the adult human brain.

Now, what is the significance of these mirror neurons?

Mirror neurons and imitation, emulation.

It is composed of mostly medium size neurons.

If these are your neighboring cells, these little sympathetic nerve cells, because they end right on the JG cells.

Imagine a network of neurons with one neuromodulator.

That little guy contains almost half of the neurons in the entire brain.

Now you've probably seen pictures of neurons before.

' We think you've got motor neurone disease. '

It has 20 different neuron types.

So the human brain has about a hundred billion neurons in it.

And that would be represented by the firing of boundary detecting cells.

Now both of these kinds of cells can make the place cells fire.

In the earlier visual areas, neurons have simpler tuning.

How can you make a small number of neurons do a lot?

So in this case, we are suppressing the activity of abnormal neurons.

It starts by killing the motor neurons in your spinal cord.

And like the rest of the brain, it's made of neurons.

And we did that for tens of thousands of neurons, built digital models of all the different types of neurons we came across.

Well, the brain, as you know, is made up of neurons.

Reduction in the activity of the cholinergic neurons is a well known feature of Alzheimer's disease.

In this species, the nervous system is sexually dimorphic the nervous systems of the two sexes, males and female hermaphrodites, have different numbers of neurons and groups of neurons that perform sex specific functions.

Now to bring home the point of how close it is the relationship between the grid of neurons and the topographical arrangement of the activity of the neurons and our mental experience I'm going to tell you a personal story.

It paralyzes you. It starts by killing the motor neurons in your spinal cord.

And you may have more or less neurons.

The pars compacta is heavily involved in learned responses to stimuli.

Association pour la recherché sur la sclérose latérale amyothrophique et autres maladies du motoneurone

The Internet acts just like your neural network in your brain.

So as I mentioned, there are 86 billion neurons.

In other words, instead of recording the activity of neurons, we need to control it.

But the identities of the individual dopamine producing neurons are clearly largely different on the left and on the right.

Its modest nervous system consists of just 300 neurons.

A quadrillion transistors is almost the same as the number of neurons in your brain.

The hippocampus is formed of two sheets of cells, which are very densely interconnected.

like how you remember or imagine or even think in terms of the actions of the billions of individual neurons that make up our brains.

Now the next natural question is, what happens at the neuron to neuron junctions?

And there is whole chains of neurons around this room, talking to each other.

Each of these neurons then carry their specific information pain, warning, pleasure.

And if we think about our brain, it has 200 billion neurons.