The word generally used is "ownership". It feels like it is part of you, because the sight of the touch, and the feel of the (separate) touch, are associated in your brain. If someone threatens the rubber hand with a knife, you flinch.https://www.the-scientist.com/infographics/infographic-the-rubber-hand-illusion-31592 …
-
এই থ্রেডটি দেখান
-
It shouldn't be surprising to you know that this illusion starts fading if the two touches become separated by more than 200-300ms. http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0006185 …pic.twitter.com/tM945aFVGV
১ reply ৪ টি পুনঃটুইট ৫৬টি পছন্দএই থ্রেডটি দেখান -
And if you're curious, our lab was looking into if this illusion works if you're stimulating the brain directly as well, by passing currents into the sensory cortex in patients with implanted electrodes. (Yes, it does.)http://www.pnas.org/content/114/1/166 …
২ replies ২ টি পুনঃটুইট ৫৪টি পছন্দএই থ্রেডটি দেখান -
Just as
@Foone pointed that the visual system isn't like a camera streaming high-res video back at you, but is full of inconsistencies like blind spots and and selectively high-res (foveal) regions, the same thing is true of the skin on your body.২ replies ৫ টি পুনঃটুইট ৪৯টি পছন্দএই থ্রেডটি দেখান -
A classic example of "tactile acuity" is 2-point discrimination, whether you can tell that 2 pinpricks are, in fact, from 2 different pins. Well, you might know that this is about a millimeter of acuity in your fingertip, and many centimeters on your torso. That's not bullshit.pic.twitter.com/rvb3HEHaxc
২ replies ৭ টি পুনঃটুইট ৫৫টি পছন্দএই থ্রেডটি দেখান -
What is less well known is that this is affected by whether or not those pins touch simultaneously, or one after another. https://onlinelibrary.wiley.com/doi/full/10.1002/ana.24179 … It's also affected by whether or not the pins cause pain. It's even affected by whether you have chronic pain.
৩ replies ৩ টি পুনঃটুইট ৩৫টি পছন্দএই থ্রেডটি দেখান -
What is probably most bullshit is that tactile resolution is improved by whether or not you're *looking toward* the general direction of the touch. EVEN IF YOU CAN'T SEE ANYTHING BECAUSE YOUR ARM IS IN COMPLETE DARKNESS. https://www.sciencedirect.com/science/article/pii/S096098220100327X …
২ replies ১৪ টি পুনঃটুইট ১৪৬টি পছন্দএই থ্রেডটি দেখান -
(A lot of this background -- and a lot of the ongoing work in neural touch perception at the
@NeuralE_Ctr -- I learn from my colleagues@croninja1 and@djcald. Look for work from them.)১ reply ১ টি পুনঃটুইট ৩৭টি পছন্দএই থ্রেডটি দেখান -
(Aside: while your 2-point acuity is ~1 mm, you can feel down to *nanometers* -- if you're allowed to stroke the texture. This is *awesome insane*, not *bullshit insane*. Basically, your brain turns the texture into a symphony of vibrating frequencies. http://www.pnas.org/content/110/42/17107.full …)
২ replies ১৭ টি পুনঃটুইট ১০৫টি পছন্দএই থ্রেডটি দেখান -
Another way your brain tries to blend vision and feel together is the size-weight and material-weight illusions. Basically, if a larger object weighs the same as a smaller object, the larger (less dense) object also *feels lighter*. As long as you get to look at it first.
৩ replies ৬ টি পুনঃটুইট ৫৯টি পছন্দএই থ্রেডটি দেখান
Remember, the two objects weigh the same. And you can lift them the same way - by a handle on a string, say - and the bigger looking one still FEELS lighter.
-
-
Other bullshit insane effects include: - Lighter color feels lighter - More metallic feels lighter - Colder feels heavierhttps://link.springer.com/article/10.1007%2Fs00221-014-3926-9 …
১ reply ৭ টি পুনঃটুইট ৮৬টি পছন্দএই থ্রেডটি দেখান -
A lot of this is from how the brain weighs (heh) prior experience. A lot of work has been done in trying to figure out how experience is used - but the short story is that through extensive training you can be tricked into thinking the reverse too, that smaller feels heavier.
৫ replies ৪ টি পুনঃটুইট ৬৮টি পছন্দএই থ্রেডটি দেখান
কথা-বার্তা শেষ
নতুন কথা-বার্তা -
লোড হতে বেশ কিছুক্ষণ সময় নিচ্ছে।
টুইটার তার ক্ষমতার বাইরে চলে গেছে বা কোনো সাময়িক সমস্যার সম্মুখীন হয়েছে আবার চেষ্টা করুন বা আরও তথ্যের জন্য টুইটারের স্থিতি দেখুন।