/sci/ - Science & Math » Thread #13675753

35KiB, 451x577, Movementum+homunculus (1).jpg

View Same Google iqdb SauceNAO

Can somebody explain in detail what this is ?

Anonymous Fri 24 Sep 00:21:12 2021 No.13675753 View Reply Original Report

Quoted By: >>13675756 >>13675761 >>13675811 >>13676504 >>13676517 >>13676691 >>13677200 >>13677698 >>13677797

Anonymous

Anonymous Fri 24 Sep 2021 00:22:43 No.13675756 Report

Quoted By:

>>13675753
Saint Floyd

Anonymous

Anonymous Fri 24 Sep 2021 00:24:49 No.13675761 Report

Quoted By:

>>13675753
It's a Homunculus

Anonymous

Anonymous Fri 24 Sep 2021 00:27:15 No.13675777 Report

Quoted By: >>13675781 >>13676299 >>13676546 >>13676694

I think its a map of how much of the sensory cortex is devoted to processing feeling from each part of the body. Penis gets bigger.

Anonymous

Anonymous Fri 24 Sep 2021 00:28:51 No.13675781 Report

Quoted By:

>>13675777
>Penis gets bigger
maybe for you

Anonymous

Anonymous Fri 24 Sep 2021 00:38:52 No.13675811 Report

Quoted By: >>13677680

>>13675753
An average American in the year 2050

Anonymous

Anonymous Fri 24 Sep 2021 03:55:51 No.13676299 Report

Quoted By: >>13676501 >>13676546 >>13676682

>>13675777
>Penis
I've always wondered, shouldn't that part be huge?

Anonymous

Anonymous Fri 24 Sep 2021 05:41:57 No.13676501 Report

Quoted By:

>>13676299
thats what your girlfriend thinks

Anonymous

Anonymous Fri 24 Sep 2021 05:44:12 No.13676504 Report

Quoted By:

>>13675753
This is the ideal male body. You may not like it, but this is what peak performance looks like.

Anonymous

Anonymous Fri 24 Sep 2021 05:49:51 No.13676517 Report

Quoted By:

>>13675753
Sensory homunculus. The parts that are exaggerated in size are more likely to have sensory neurons (more sensitive to touch, pressure, heat etc) than other parts.

Anonymous

Anonymous Fri 24 Sep 2021 06:03:16 No.13676546 Report

Quoted By:

>>13676299
If what >>13675777 says is true, then no.
If it was meant to show the number of nerve endings, then yes.

Anonymous

Anonymous Fri 24 Sep 2021 07:15:30 No.13676682 Report

Quoted By:

there is also a motor homunculous floating around somewhere. this might be that considering >>13676299
they look pretty similar

Anonymous

Anonymous Fri 24 Sep 2021 07:19:38 No.13676691 Report

Quoted By:

>>13675753
First black white male

Anonymous

Anonymous Fri 24 Sep 2021 07:22:05 No.13676694 Report

Quoted By:

>>13675777
Exactly right. Came to post this.

Anonymous

Anonymous Fri 24 Sep 2021 11:00:39 No.13677200 Report

Quoted By: >>13677676

>>13675753
The average American

Anonymous

Anonymous Fri 24 Sep 2021 14:57:59 No.13677676 Report

Quoted By:

>>13677200
too white to be American

Anonymous

Anonymous Fri 24 Sep 2021 14:59:21 No.13677680 Report

Quoted By:

>>13675811
This desu

Anonymous

Anonymous Fri 24 Sep 2021 15:05:13 No.13677698 Report

Quoted By:

>>13675753
The result of sacrificing thousands of souls, and it's beautifull.

Anonymous

View Same Google iqdb SauceNAO Homonculus Sensory and Motor Cor (...).png, 153KiB, 1019x516

Anonymous Fri 24 Sep 2021 15:33:31 No.13677797 Report

Quoted By: >>13677804 >>13678142

>>13675753
>Group of last century's mad scientists, led by Pen(is)field, strapped macaques and humans to chairs and stuck electrodes through their skulls
>Used electrodes to stimulates areas in pic related. Asked humans what part of their body they experienced tactile sensations during stimulation
>Participants told which parts of their skin were stimulated
>Scientists drew the appropriate body parts next to schematic drawings of the structure (primary somatosensory cortex or S1)
>Did the same with the primary motor cortex (M1), where stimulation led to sudden movement in body parts
>OP's pic is a reconstruction of pic related. Basically rebuilding a human with the cortical representation maps of either S1 or M1

Anonymous

Anonymous Fri 24 Sep 2021 15:35:27 No.13677804 Report

Quoted By: >>13677817

>>13677797
>motor control of genitals bigger than sensory aferentation from genitals
retarded

Anonymous

Anonymous Fri 24 Sep 2021 15:40:19 No.13677817 Report

Quoted By: >>13678199

>>13677804
IIRC the genitalia data back then was mushy because sometimes participants didn't (want to) respond on their stimulated areas and the scientists interpreted it as them not wanting to talk about genital stimulation because social pressure/shame.
It has been updated.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6724806/

Anonymous

Anonymous Fri 24 Sep 2021 17:11:34 No.13678142 Report

Quoted By: >>13678169

>>13677797
also note that the sensory area for feet is physically near the area for the genitals. Leakage between the areas is why foot fetish is so common.

Anonymous

Anonymous Fri 24 Sep 2021 17:17:20 No.13678169 Report

Quoted By:

>>13678142
That was proposed by Indian science guy V Ramachandran.

And it's been debunked.

Anonymous

Anonymous Fri 24 Sep 2021 17:24:15 No.13678199 Report

Quoted By: >>13678376 >>13678410

>>13677817
penis shouldn't have prefrontal cortex representation at all, it literally has no muscles whatsoever, and certainly neither does the scrotum
(the little penis flex we can do is a function of perineal muscles)

Anonymous

Anonymous Fri 24 Sep 2021 18:15:31 No.13678376 Report

Quoted By:

>>13678199
>penis shouldn't have prefrontal cortex representation at all
>t. somsone who doesn't use his penis creatively

Anonymous

Anonymous Fri 24 Sep 2021 18:21:47 No.13678410 Report

Quoted By: >>13678423

>>13678199
>penis shouldn't have prefrontal cortex representation at all
>implying you don't use your penis for long-term thinking or strategic problem solving

Anonymous

Anonymous Fri 24 Sep 2021 18:24:22 No.13678423 Report

Quoted By:

>>13678410
>i said prefrontal cortex instead of precentral gyrus
this is what happens when you're a 30 year old boomer

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