Lefty Brain Teasers


Because their brains are organised differently, left-handers see and think differently and can get some very different results from various "brain tests", usually doing very well on tests that involve creative thinking or unraveling complex images and manipulating 3D images. Here's a famous test of creativity - have a look at the image below:

left brain test

A non-creative right handed brain sees only a hodgepodge of disconnected shapes, but the left-handed brain can go beyond logic and find the connecting concept that makes sense of the shapes. If you can't "see" beyond the shapes, it's because your right-handed brain is trying to solve the problem and won't let your left-handed brain have a go. If you still can't see the picture, the answer is at the bottom of this page **


Thurston's hand test


The left-handed brain's mastery of the visual has an important benefit - it can "see" three dimensionally. In Thurston's hand test, you are asked to identify which pictures are of left hands and which are of right hands. Your right-handed brain is at a loss to handle this problem, but your left-handed brain can actually rotate these drawings in imaginary space to solve the test - have a go!

Image description


Kanizsas triangle


Here's another example showing how your left-handed brain can even create things that don't exist. If you can see the white triangle - the one with its apex pointing up - it's because your left-handed brain has created that triangle to unify what is otherwise simply a collection of angles and PacMan shapes. There is, in fact, no white triangle there.

Image description


** The picture in the first brainteaser is of a dog drinking from a stream, with its head in the middle of the picture facing down to the water and its tail off to the right.


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Visitor comments on this page

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go lefties - By ashley
1st July 2009 - 9:02pm

well i saw a stream with a waterfall a a large fish jumping and i'm only 9 and i'm the only lefty in 26 kids in my class

re: counter strike - By Jamie Bomarito
26th June 2009 - 4:50pm

I also use my left hand to operate the mouse, although I switch which hand I use for the mouse about every month or so just to give my other hand a break for a while!

By cindy
16th June 2009 - 11:04am

I saw a large animal, most likely a dog, with it's nose to the ground. It looked like there was a stone pathway in the shape of a cross, and maybe a tree in the middle of a square in front of the dog. I'm most definitely a LEFTY! The only one in the history of our family that we know of.

...Still me... - By Vicky
8th June 2009 - 3:45pm

By the way, I'm ambidextrous now. The fact that I don't feel a strong preference for either like absolute righties or lefties do, makes me wonder if this isn't why I have difficulty distinguishing between the two...especially when under stress (such as when driving under someone else's directions or they mine).

I still have to stop myself from looking down at lefties when I see them using their left hand. Even though I do use my left foot for sports and eye for photography. I just learned to eat with chopsticks and guess which hand I naturally picked them up with? Yep! Still a lefty at heart! (and I don't look down at you)...YOU GO, LEFTIES!!

handedly confused - By Vicky
8th June 2009 - 3:36pm

I found this page because I'm tired of getting my left from rights mixed up and was wondering if my handedness had anything to do with it. Google led me in here.
I was born a lefty, but an anal teacher aide I had in kindergarten and first grade made me feel like a reject. She told everyone to lift the hand they were writing with. I was so ashamed that I was the only lefty. Between shame and smacks with a ruler when using my left hand, I didn't have a chance. Finally revealing this experience with my mother when I was a teen, she asked, "Why didn't you tell me she was smacking you? I wouldn't have allowed that to continue!" I replied, "Because I didn't want you to know I was a bad girl." It wasn't until college that I realized my intolerance for lefties (looking down on them) was because I'd been taught that it was wrong...EVEN though, by adulthood I knew it wasn't.
So, do you think my problem with distinguishing left from right comes from my change?

proud leftist, - By anona marilyn
8th June 2009 - 5:30am

i am so proud and happy being left handed, i wish i am the only one who is left handed. i get angry when i see someone else using left.

woo go leftys! - By Torri
7th June 2009 - 1:12am

hi i'm also proud to be a lefty. i'm actually the only one in my family right now and we have a big family lol. people are always surprised that i'm a lefty because they never notice and i'm like one of 3 in my whole school :D

By [:alex:]
4th June 2009 - 2:48pm

I am actually very proud to be a lefty i am one of 5 people in my entire family to be a lefty and i have a huge family.

By leftygirl
25th May 2009 - 9:01am

hi i am in school and a lefty

Brain Teaser 3D - By Kathy
16th May 2009 - 10:50am

Hi, I am left-handed and saw a man walking a path and to the right of the man a large dog's face. Behind the man I thought were woods.

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