So, right now we have a spike carried by this neuron and then we'll send it to the brain. Let's take a look actually how this information actually travels actually propagate to the brain. Here, then I just used this cartoon as my example. Take a look, this one the skin the [FOREIGN]. Now this one thing is the muscle, [FOREIGN], okay? Now, this of course things is the, the neuro the sense of the neuro. Take a look at this, this is the neuro cell body you going to you about it [FOREIGN] DRG. [FOREIGN] Okay, now [FOREIGN] process [FOREIGN] process [FOREIGN] so have you talked about [FOREIGN]. So some of these little fibers, actually very sick [FOREIGN] to the spinal cord. [FOREIGN] Spinal cord [FOREIGN] this is the other route. [FOREIGN] We'll talk about this process actually in detail, so they carry the information to the dorsal horn. And from here, they will also has some processes direct to the brain stem. [FOREIGN] So now [FOREIGN] [INAUDIBLE] the projection, the neuron projection is the opposite side [FOREIGN], okay? And then you take a look about this one, this information, things different. [FOREIGN] Cross the middle line of this spinal column [FOREIGN] the cortex [FOREIGN] spinal cord [FOREIGN] okay? [FOREIGN] Now, take another look, there's another projection, very interesting, right? This blue connection can actually project to these two areas [FOREIGN] your tongue [FOREIGN] old, very painful. [FOREIGN] So you see that [FOREIGN]. Now so you know just to [FOREIGN] okay? [FOREIGN] This is the brain representation of the sensory information, right? This is the smell olfactory cortex [FOREIGN] visual system, visual cortex. Okay so, we'll talk about all this sensory process actually one by one, okay? And by the [FOREIGN] this understanding, so far, what we can say is that the visual system is the best understood [FOREIGN] okay? [FOREIGN] The sensory transduction or the neural circuitry or the transformation of the signal or the perception. This is the best answer to this so far, so this