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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Notes from Two Scientific Psychologists: Visual illusions and direct perception

Notes from Two Scientific Psychologists: Visual illusions and direct perception | The brain and illusions | Scoop.it
Gerald Carey's insight:

I found the article hard to follow but the graph above was interesting. The Muller-Lyer illusion was presented to different groups of people and their reactions were different!

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One out of two parents do not see their child's weight problem

One out of two parents do not see their child's weight problem | The brain and illusions | Scoop.it
One out of two parents of children with overweight feel that their child's weight is normal. Four out of ten parents of children with overweight or obesity are even worried that their child will get too thin. These are the findings of a European study of parents of more than 16,000 children.
Gerald Carey's insight:

Parent perception of their child's weight can is distorted by being...the parent.

It emphasises the need to get objective measures of weight for your children.

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How Music Hijacks Our Perception of Time - Issue 9: Time - Nautilus

How Music Hijacks Our Perception of Time - Issue 9: Time - Nautilus | The brain and illusions | Scoop.it
One evening, some 40 years ago, I got lost in time. I was at a performance of Schubert’s String Quintet in C major. During the second…
Gerald Carey's insight:

You can lose yourself in music...well, d'uh!

Great article on how  music can disturb our perception of time.

Long read but well worth it.

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Your brain sees things you don't

Your brain sees things you don't | The brain and illusions | Scoop.it
A study indicates that our brains perceive objects in everyday life of which we may never be aware. The finding challenges currently accepted models about how the brain processes visual information.
Gerald Carey's insight:

This might help explain why we become aware of some thimgs that we don't remember seeing.

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This Is Your Brain on 3-D | Brain Games

This Is Your Brain on 3-D | Brain Games | The brain and illusions | Scoop.it
Optical illusions reveal the mechanics of our mind.
Gerald Carey's insight:

National Geographic site on Illusions.  Includes a number of interactive elements.

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Notes from Two Scientific Psychologists: The Size-Weight Illusion is Functional, and It's About Throwing

Notes from Two Scientific Psychologists: The Size-Weight Illusion is Functional, and It's About Throwing | The brain and illusions | Scoop.it
Gerald Carey's insight:

As the author says, "It is typically described as a mis-perception of weight. Two objects of the same weight but different sizes are misperceived as being of different weight, with the larger one rated as lighter. People seem unable to perceive weight without taking size into account"

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Pain in the brain

Pain in the brain | The brain and illusions | Scoop.it
You don’t just experience pain physically. The amount of pain you perceive is influenced by environmental factors – for example sound, temperature and your surroundings – and psychological factors,...
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These Are Not GIFs: 15 Optical Illusions That Will Deceive You

These Are Not GIFs: 15 Optical Illusions That Will Deceive You | The brain and illusions | Scoop.it
Emerson M. Pugh once wrote that "If the human brain were so simple that we could understand it, we would be so simple that we couldn’t." We imagine Dr.
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Pilot who crashed two years likely had a visual illusion

Pilot who crashed two years likely had a visual illusion | The brain and illusions | Scoop.it
Investigators say the pilot of a water bomber that crashed near Lytton faced depth perception problems, which could be what sent the plane into a downward spin. The pilot and co-pilot were killed.
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Recalibrate Your Reality

Recalibrate Your Reality | The brain and illusions | Scoop.it
Wish you were better/smarter/stronger/faster? Sure, hard work helps, but the truth is, your self perception may be getting in the way. We all form our own realities, and those realities aren't perfect.
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The Pot and the Kettle – Both Still Black | Brain Blogger

The Pot and the Kettle – Both Still Black | Brain Blogger | The brain and illusions | Scoop.it

It’s an age-old phenomenon: people are guilty of the very fault they find in others. In psychology terms, ethical dissonance. In colloquial terms, the pot calling the kettle black

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Recalibrate Your Reality

Recalibrate Your Reality | The brain and illusions | Scoop.it

Wish you were better/smarter/stronger/faster? Sure, hard work helps, but the truth is, your self perception may be getting in the way.

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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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Perception and Imagination: a Neuroscientist’s Perspective | BrainFacts.org Blog

Perception and Imagination: a Neuroscientist’s Perspective | BrainFacts.org Blog | The brain and illusions | Scoop.it
Gerald Carey's insight:

Nice article summarising the current research comparing brain function when we perceive and object and when we imagine it. Some good definitions of the terms and references to current thinking about how they work ie 'mental models' and 'cell assembly".

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Virtual reality trick shifts depth perception - Futurity

Virtual reality trick shifts depth perception - Futurity | The brain and illusions | Scoop.it
Scientists manipulated people's depth perception by tricking them into thinking they had a longer reach than they really do.
Gerald Carey's insight:

Depth perception and tricking the brain into thinking that you have longer arms.  Takes a few 'reads' to get your head around this one.

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Gestalt Theory of Visual Perception

Gestalt Theory of Visual Perception | The brain and illusions | Scoop.it
Gerald Carey's insight:

Uses Gestalt Theory and it's principles to explain how illusions work.  Worth a read if you want to go a little deeper than the usual article on illusions

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Alf Andersen's curator insight, December 18, 2013 4:40 PM

a bit of theory - Gestalt psychology: perception

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Perception and Perceptual Illusions

Perception and Perceptual Illusions | The brain and illusions | Scoop.it
Perception occurs when sensory signals are matched to perceptual templates.
Gerald Carey's insight:

Well, this is a very nice article with some decent explanations about how illusions work.  Not for people that don't read!

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Eye of The Dragon Illusion | Mighty Optical Illusions

Eye of The Dragon Illusion | Mighty Optical Illusions | The brain and illusions | Scoop.it
As you move your eyes around these pictures, pattern in use produces an illusory movement, making the Eye of The Dragon ascend or descend. The pulsation
Gerald Carey's insight:

Sickening colour.  Should really acknowledge here that Mighty Optical Illusions is a great source of this any type of ...Optical Illusion.

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Memories May Skew Visual Perception

Memories May Skew Visual Perception | The brain and illusions | Scoop.it
Taking a trip down memory lane while you are driving could land you in a roadside ditch, new research indicates. Vanderbilt University psychologists have found that our visual perception can be contaminated by memories of what we have recently seen, impairing our ability to properly understand and act on what we are currently seeing
Gerald Carey's insight:

This is the first article that I have seen from this blog so I don't know how authoritative it is.  However, it has introduced an interesting effect to me called 'motion repulsion' so it was worth a read.

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Notes from Two Scientific Psychologists: How do we perceive which objects afford throwing the farthest?

Notes from Two Scientific Psychologists: How do we perceive which objects afford throwing the farthest? | The brain and illusions | Scoop.it

Previous work has established that people with throwing experience can perceive the affordance of 'throwability'. If you let these people heft objects with a range of sizes and weights, they will confidently select the one they think they can throw the farthest, and they tend to be correct. It's a very natural task, one you have probably done yourself on a beach or lakeside looking for stones to throw into the water.

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An Optical Illusion that Explains the Origins of Imaginary Monsters

An Optical Illusion that Explains the Origins of Imaginary Monsters | The brain and illusions | Scoop.it
It seems that the brain, in specific situations, literally gets bored and starts scaring you. The easiest way to prove this is to perform the simple experiment of looking steadily into a mirror, for a few minutes at a time.
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New Scientist TV: Friday Illusion: Size trick alters vivid apparition

An illusion that tricks your brain twice is helping to uncover how we perceive ghostly images. The new animation, created by Irene Sperandio from the University of Western Ontario in London, Canada, and colleagues, combines an after-image effect with a common size illusion to investigate how these colourful apparitions are generated.

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When Your Brain Can't Believe Your Eyes

When Your Brain Can't Believe Your Eyes | The brain and illusions | Scoop.it
Curious images known as optical illusions prove seeing isn't always believing.
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Health News - Get Me Out of this Slump! Visual Illusions Improve Sports Performance

With the NCAA men’s college basketball tournament set to begin, college basketball fans around the United States are in the throes of March Madness. Anyone who has seen a game knows that the fans are like extra players on the court, and this is especially true during critical free throws.

Fans of the opposing team will wave anything they can, from giant inflatable noodles to big heads, to make it difficult for players to focus on the basket.

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