8.3 Definition of behavior

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Del curso dictado por Peking University

Advanced Neurobiology II

51 calificaciones

Peking University

Advanced Neurobiology II

51 calificaciones

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!

De la lección

Gene and behavior

8.1 Introduction of behavior9:49

8.2 Bruce effect6:39

8.3 Definition of behavior8:14

8.4 Classification of behavior9:35

8.6 Transcriptional feed back9:27

8.7 Photoentrainment11:18

8.8 Gene and sex Ⅰ9:54

8.9 Gene and sex Ⅱ4:25

8.10 Parabiosis9:51

8.11 Leptin15:09

Conoce a los instructores

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

[FOREIGN]

>> [INAUDIBLE]

>> Stimulus.

>> Okay.

So, the cause is internal or external stimuli.

Right.

>> Okay. And the response is either a behavior or

emotion.

So Okay.

And do you think this behavior is controlled by the gene or

by the environment.

>> [INAUDIBLE] I think it must have a genetic component.

>> Okay.

>> But in these African

[INAUDIBLE] and

see this [INAUDIBLE] >> Okay.

Naturally to define what's a behavior actually is quite a challenge.

Actually it takes a long time [INAUDIBLE] in the field naturally.

A lot of debating, okay.

About [INAUDIBLE] debating.

What is behavior?

And Michelle, you mentioned a couple of points.

Those are important points, okay, Let's take a look.

Some of, of course, this kind of definition.

You can find that it's not perfect.

There's no any perfect definition for behavior.

But there are a couple of them.

Externally visible activity, of course you can see behavior, right.

A coordinate pattern of sensory.

You need a sensory because you detected a stimuli.

And of course you need a motor system.

You can choose this kind of movement.

And associated neural activity responds to changing condition.

Now the condition The conditions can be internal or external.

And they're [INAUDIBLE] similar.

[INAUDIBLE] similar.

But behavior has a genetic basic for this one.

Right.

And [INAUDIBLE] to natural selection because maybe for survival.

Right?

Be mortified by.

You see okay, this is more kind of elaborate definition, okay.

Of course there are some other things we need to pay attention.

So actually, it's the activity of an organism.

And [INAUDIBLE].

So, stimulation.

This is [INAUDIBLE] organism

[INAUDIBLE] body.

[INAUDIBLE] Organism.

[FOREIGN]

Behavior can be defined as a way

an organism [FOREIGN]

The simplest one What animal does.

Okay, so this is important.

So we talk about it actually uses a whole organism to the response.

Okay, so in a hot summer day [INAUDIBLE]

[FOREIGN] Your body detect

those temperatures right.

Too high temperature and

they trigger your

[FOREIGN] this behavior.

You think it's a behavior, right.

This is behavior.

The behavior definition is difficult draw in mind.

But if we take this kind of thing as

the definition for a behavior, then this wedding is not that behavior.

It's just a reflex.

[FOREIGN] It's not a behavior, right.

Look, what if we take this seriously.

Think about it, okay.

Sweat needs to know that behavior, I called into this definition.

It's a man's question of behavior, not a single if.

Choose Hannah you'll find a tree,

there's shadow there.

Then you move to the shadow.

And then this is a behavior.

It's response.

It's in the organism,

okay, yeah.

[INAUDIBLE] >> Okay good.

Just individual, just a whole organism [INAUDIBLE].

[FOREIGN] Reflects.

I guess this can be debatable.

What is behavior.

>> [INAUDIBLE] >> Okay.

Good, good.

Yep.

There would be more strict definition.

Yeah, in the brain, those kind of control.

Then actually we will be more elaborate, the action.

[INAUDIBLE] do nothing in our body,

[INAUDIBLE] does it belong to the behavior.

>> Do you think so, thinking,

is that behavior.

>> [INAUDIBLE] >> Yeah if you a motto system Sensory.

Okay of course maybe something you're thinking okay.

What's the modal unit here.

New section because of you.

I was thinking you were a circuitry.

Okay, so this is UK, find it more

elaborate Definition for the behavior.

But this actually is the most actually, this kind of

definition used in the field right now is kind of common sense, okay?

All right, so the behavior actually has three foundations.

Three, Principles, by natural selection, and

also can be learned, by individuals, and also

can be transmitted through the kind of culture.

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