1.1.6 Sensory processing

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From the course by Peking University

Advanced Neurobiology II

59 ratings

Peking University

Advanced Neurobiology II

59 ratings

Hello everyone! Welcome to advanced neurobiology! Neuroscience is a wonderful branch of science on how our brain perceives the external world, how our brain thinks, how our brain responds to the outside of the world, and how during disease or aging the neuronal connections deteriorate. We’re trying to understand the molecular, cellular nature and the circuitry arrangement of how nervous system works. Through this course, you'll have a comprehensive understanding of basic neuroanatomy, electral signal transduction, movement and several diseases in the nervous system. This advanced neurobiology course is composed of 2 parts (Advanced neurobiology I and Advanced neurobiology Il). They are related to each other on the content but not on scoring or certification, so you can choose either or both. It’s recommended that you take them sequentially and it’s great if you’ve already acquired a basic understanding of biology. Thank you for joining us!

From the lesson

Perception: Vision

1.1.1 Ways to sense the environment-I10:18

1.1.2 Ways to sense the environment-II11:57

1.1.3 Ways to sense the environment-III8:24

1.1.4 Sensory transduction-I9:04

1.1.5 Sensory transduction-II9:12

1.1.6 Sensory processing9:12

1.1.7 Sensory representation in the brain4:57

1.1.8 Vision15:58

1.1.9 Single-photon detection16:44

1.1.10 Second messengers8:35

Meet the Instructors

Chenjian Li
Professor
School of Life Sciences
Donggen Luo
Research Fellow
School of Life Sciences
Yan Zhang
Professor
School of Life Sciences, Peking University

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

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