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Interesting findings regarding dyslexia

18 Oct

Selfie as I wore my dyslexia t-shirt which reads (although it's in French) "sodilarity with the dyslexic"Today, the part of the Internet which I pay attention to was abuzz about the recent findings about “Left–right asymmetry of the Maxwell spot centroids in adults without and with dyslexia” published today in The Royal Society, and the work on a lamp that probably cancels or enhances the blue in question, to help override the anomaly (good luck with shining that light in digital media!) See the appendix for the article’s abstract.

I’ve had dyslexia all my life (duh, as though it could be a virus), well before I knew what it was. And today I learned a new characterisation: “visual and phonological deficits“.

Testing

So I looked out a window at something in particular among the brightness of the outside, for at least 10 seconds so that the image of that thing printed itself at the back of my retina. Then I looked away, closed my eyes and put my hands on them. While keeping my eyes closed, I removed a hand and covered my eye again then removed the other hand and covered my eye back. I did that for a bit, assessing which eye had the clearer retinal persistence. This is a technique to determine which is your dominant eye. Retinal persistence in my case was as clear in one eye as in the other. No surprise.

A decisive joke!

A pal I hang out with on IRC suddenly made a candid but decisive joke, “so you need to close one eye!” And I thought, why not? and I did.

I read the same bit of text I had been reading before and found the process of reading much much smoother. It was so incredible that I suspiciously chose text I wasn’t familiar with at all and again, found the process of reading with just one eye much faster and fluid.

Sensory handicap paradox

It is counter-intuitive, in case of a sensory handicap to narrow-down the sensory input, but in this case I was happily surprised. Similarly to when I discovered many years ago that in order to best depict in 2D on paper something I was looking at in 3D, all I needed to do was close an eye and draw.

I’m glad I work from home. Nobody will see me when I read while wearing the eye-patch a friend of mine gave me for Halloween years ago.

Appendix

Here is a quote of the abstract of the article Albert Le Floch and Guy Ropars from the University of Rennes published:

In human vision, the brain has to select one view of the world from our two eyes. However, the existence of a clear anatomical asymmetry providing an initial imbalance for normal neural development is still not understood. Using a so-called foveascope, we found that for a cohort of 30 normal adults, the two blue cone-free areas at the centre of the foveas are asymmetrical. The noise-stimulated afterimage dominant eye introduced here corresponds to the circular blue cone-free area, while the non-dominant eye corresponds to the diffuse and irregular elliptical outline. By contrast, we found that this asymmetry is absent or frustrated in a similar cohort of 30 adults with normal ocular status, but with dyslexia, i.e. with visual and phonological deficits. In this case, our results show that the two Maxwell centroid outlines are both circular but lead to an undetermined afterimage dominance with a coexistence of primary and mirror images. The interplay between the lack of asymmetry and the development in the neural maturation of the brain pathways suggests new implications in both fundamental and biomedical sciences.

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#inktober days 11-15

17 Oct
[Inktober: 31 Days 31 Drawings, following a prompt list.]

Day 11: ‘run’. Pen and ink drawing of a naked man running.
Pen and ink drawing of a naked man running

Day 12: ‘shattered’. Grey India ink brush pen and white pigment pen drawing of a shattered mirror and reflection of a screaming woman.
Grey India ink brush pen and white pigment pen drawing of a shattered mirror and reflection of a screaming woman

Day 13: ‘teeming’. Ink drawing of one of the Shibuya Crossing streets in Tokyo, flooded with pedestrians.
Ink drawing of one of the Shibuya Crossing streets in Tokyo, flooded with pedestrians

Day 14: ‘fierce’. Ink drawing of a dragon, some highlights using India ink soft brushes.

Day 15: ‘mysterious’. Black ink drawing of Ezio from video game Assassin’s Creed.
Black ink drawing of Ezio from video game Assassin’s Creed

Inktober’s prompt list:

Inktober prompt list

#inktober days 6-10

11 Oct
[Inktober: 31 Days 31 Drawings, following a prompt list.]

Day 6: ‘sword’. Ink drawing of a swordsman at the ready. Black ink Uni-ball pin pen (0.05 mm).

Ink drawing of a swordsman at the ready

Day 7: ‘shy’. Ink drawing of a shy girl hiding half her face behind a shoulder. Black ink Uni-ball pin pen (0.05 mm).

Ink drawing of a shy girl hiding half her face behind a shoulder

Day 8: ‘crooked’. Ink drawing of the MIT Stata Center, by Frank Gehry. A crooked building. Black ink Uni-ball pin pen (0.05 mm), and grey soft brush Pitt Artist Pen.

Ink drawing of the MIT Stata Center, by Frank Gehry. A crooked building.

Day 9: ‘screech (owl)’. Ink drawing of a screeching barn owl. Black ink Uni-ball pin pen (0.05 mm).

Ink drawing of a screeching barn owl

Day 10: ‘gigantic’. Ink drawing of a couple taking a selfie in front of Dancing Nana, by Niki de Saint Phalle, an exhibit on the bank of La Seine since 1995. Black ink Uni-ball pin pen (0.05 mm), and Pentel brush pen.

Ink drawing of a couple taking a selfie in front of Dancing Nana, by Niki de Saint Phalle.

Inktober’s prompt list:

Inktober prompt list

#inktober days 1-5

7 Oct
[Inktober: 31 Days 31 Drawings, following a prompt list.]

I’m doing Inktober again and I like it. It was fun last year. I’m rather pleased with what I did thus far. I have the impression I have progressed. It takes me 2 to 3 hours every night, depending on how long I need to find my subject, then I focus without interruption till I’m done and realise my coffee is cold, I have not smoked and I’ve done something pretty.

Day 1: ‘swift’. Drawing of a swordsman wielding a Japanese sword. Black ink Uni-ball pin pen (0.05 mm), and grey soft brush Pitt Artist Pen.

Drawing of a swordsman wielding a Japanese sword

Day 2: ‘divided’. Wooden jigsaw puzzle of three camels, one separated from the others and slightly behind. Black ink Uni-ball pin pen (0.05 mm), and grey soft brush Pitt Artist Pen.

Wooden jigsaw puzzle of three camels, one separated from the others and slightly behind

Day 3: ‘poison’. Poisonous frog viewed from above, in black and white, with black spots. In real-life, these are green and black. Black ink Uni-ball pin pen (0.05 mm).

Poisonous frog viewed from above, in black and white, with black spots

Day 4: ‘underwater’. Still woman immersed, the top of her head breaking the water. Black ink Uni-ball pin pen (0.05 mm), and grey soft brush Pitt Artist Pen.

Still woman immersed, the top of her head breaking the water

Day 5: ‘(so) long’. A sailing ship at sea, far away on the horizon, big waves in the foreground, and cloudy heavy sky. Copy of work by Bernie Wrightson, who was much much gifted than I am. Still I quite like my work. Black ink Uni-ball pin pen (0.05 mm).

A sailing ship at sea, far away on the horizon, big waves in the foreground, and cloudy heavy sky

Inktober’s prompt list:

Inktober prompt list