The brain and illusions
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The brain and illusions
What can illusions teach us about the brain?
Curated by Gerald Carey
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Your Brain On Illusions (The LAB) - YouTube

Find out what happens to your brain during illusions! Follow us! @whalewatchmeplz and @mitchellmoffit SUBSCRIBE! It's free: http://bit.ly/asapsci Want to mak...
Gerald Carey's insight:

Some very good visual illusions here although I am not sure of the point of number 4. Nice set up for the fake hand illusion.

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New bodily illusion: Would you believe your hand could turn into marble?

New bodily illusion: Would you believe your hand could turn into marble? | The brain and illusions | Scoop.it
Our bodies are made of flesh and bones. We all know this, and throughout our daily lives, all our senses constantly provide converging information about this simple, factual truth. But is this always the case? A new study reports a surprising bodily illusion demonstrating how we can rapidly update our assumptions about the material qualities of our bodies based on recent multisensory perceptual experience.
Gerald Carey's insight:

Just have to include this part of the text:

"To induce an illusory perception of the material properties of the hand, a group of neuroscientists from Bielefeld University, the Max-Planck Institute for Biological Cybernetics (Germany), and the University of Milano-Bicocca (Italy) asked volunteers to sit with their hands lying on a table in front of them. They repeatedly hit the participants' right hands gently with a small hammer while replacing the natural sound of the hammer against the skin with the sound of a hammer hitting a piece of marble. Within minutes, hands started feeling stiffer, heavier, harder, less sensitive, and unnatural. Moreover, when approached by a threatening stimulus (a needle that the experimenter moved near their hands), participants showed an enhanced Galvanic skin response, thus demonstrating increased physiological arousal."


A hand that feels like granite! Unbelievable.

 

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Handy illusion

Handy illusion | The brain and illusions | Scoop.it
@olliemealing brought my attention to this great illusion yesterday..... And very good it is too. Like it?
Gerald Carey's insight:

Just one picture...

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Student Paints Creepy Illusions In Her Spare Time, Inspires Us To Find Cooler Ways to Procrastinate

Student Paints Creepy Illusions In Her Spare Time, Inspires Us To Find Cooler Ways to Procrastinate | The brain and illusions | Scoop.it
Choo-san began doodling delightfully creepy illustrations on her hand with acrylic paint during a gap year spent studying for her university entrance exams. Impressed with her work, she began uploading her optical illusions online.
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Cool Optical Illusions - The Famous Crazy Distorted Circle

Cool Optical Illusions - The Famous Crazy Distorted Circle | The brain and illusions | Scoop.it

Here's a great optical illusion you can do with an empty paper towel tube. Hold it next to your hand and then let your eyes relax, focus on the distance and it will appear that you are looking in a hole in your hand! This is one that kids will really like, so next time you are looking for a new way to entertain a child, try this technique!

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Synesthesia Helps Explain Mysterious Spelunker's Illusion

Synesthesia Helps Explain Mysterious Spelunker's Illusion | The brain and illusions | Scoop.it
Why some people believe they can see their hands in total darkness
Gerald Carey's insight:

I thought spelunkers had something to do with diving in caves!

Wow, was I wrong.

Some people can 'see' there hands moving in front of their face even in complete darkness or with blindfolds.

Those with synaesthesia experience the phenomenon more strongly than others.

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How to Draw a 3D Optical Illusion of Your Hand

How to Draw a 3D Optical Illusion of Your Hand | The brain and illusions | Scoop.it
Handimania has created an awesome tutorial video that demonstrates how to draw a fun 3D optical illusion of your hand. All you need is paper, a pencil, and some colorful markers. With the pencil, t...
Gerald Carey's insight:

NIce activity and it looks good as well.

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Anatomically plausible illusory posture affects mental rotation of body parts

Anatomically plausible illusory posture affects mental rotation of body parts | The brain and illusions | Scoop.it
A recent study by Silvio Ionta and team showed that illusory ownership of a fake hand due to the rubber hand illusion alters thinking about hands using hand movement imagery.
Gerald Carey's insight:

More details about the rubber hand illusion. Not for the casual reader.

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Digication :: EBO Elementary USVI :: (5th&4th) Checkerboard Hand Illusions

Digication :: EBO Elementary USVI :: (5th&4th) Checkerboard Hand Illusions | The brain and illusions | Scoop.it

A visually intriguing lesson but very challenging. Students were introduced to Op-Art (optical art) which is a style that focuses on implying movement from a flat image and creating optical illusions. First we created a checkerboard which shows movement. Students trace their hand on top and then comes the challenge of filling in the checkerboard!

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