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Synesthesia Or The Ability Of Some People To "Hear" Colors


Science & Tech  (tags: Synesthesia, Hearing Colors, Dermavision, Feeling Colors, Learning Disabilities, Teaching, Vocatonal Rehabilitation, concept, humans, interesting, investigation, research, safety, science, scientists, study )

Fiona
- 200 days ago - livescience.com
I have been told I was pschyic. I do not believe that. I believe some people have enhanced physical senses. I also feel colors through the delicate skin of my finger pads and see auras. So I identified with this article.



   

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Fiona O (561)
Tuesday March 6, 2018, 9:41 pm
About 4 percent of the people on Earth experience a mysterious phenomenon called synesthesia: They hear a sound and automatically see a color; or, they read a certain word, and a specific hue enters their mind's eye. The condition has long puzzled scientists, but a small new study may offer some clues.

The study, published today (March 5) in the journal Proceedings of the National Academy of Sciences, offers insight into what might be happening in the brains of people with synesthesia.

Previous "studies of brain function using magnetic resonance imaging confirm that synesthesia is a real biological phenomenon," said senior study author Simon Fisher, director of the Max Planck Institute for Psycholinguistics in the Netherlands. For example, when people with synesthesia "hear" color, brain scans show that there's activity in the parts of the brain linked to both sight and sound, he said. (Not all people with the condition "hear" sights, however; the condition can also link other senses.)
 

Fiona O (561)
Tuesday March 6, 2018, 9:42 pm
Indeed, the brains of people with synesthesia previously have been shown to be more connected across different regions than the brains of people whose senses are not cross-linked, Fisher told Live Science. The question, however, was what causes this different brain wiring, he said.

To answer that question, Fisher and his team looked to genetics.

Synesthesia frequently runs in families, so the researchers decided to look for genes that might be responsible for the development of the condition. They chose three families, in which multiple members across at least three generations had a specific type of synesthesia, the so-called sound-color synesthesia, meaning that hearing sounds evokes perceptions of colors. Typically, a specific sound or musical tone is consistently associated with a specific color for people who have this type of synesthesia. However, different members of a single family can see different colors when hearing the same sound, Fisher said.

The scientists used DNA sequencing to study the participants' genes, Fisher said. Then, to identify genes that might be responsible for the condition, the scientists compared the genes of family members with synesthesia to the genes of family members without it, he said.

But the findings didn't yield a straightforward result: "There was not a single gene that could explain synesthesia in all three families," Fisher said. Instead, "there were 37 candidate variants," or possible gene variations, he said.
 

Fiona O (561)
Tuesday March 6, 2018, 9:43 pm
Because the study included only a small number of people, there wasn't enough data to single out the specific genes, of the 37 possibilities, that played a role in synesthesia. So, instead, the scientists looked at the biological functions of each gene to see how it could be related to the development of the condition. "There were just a few biological themes that were significantly enriched across the candidate genes identified," Fisher said. "One of those was axonogenesis, a crucial process helping neurons get wired up to each other in the developing brain." Axonogenesis refers to the development of neurons.

This is consistent with prior findings of altered connectivity in brain scans of people with synesthesia, Fisher said. In other words, the genes identified in the study play a role in how the brain is wired, offering a potential explanation for why the brains of people with synesthesia appear to be wired differently.

The researchers are now looking for more volunteers to participate in their future studies, which, they hope, will help them better understand how variations of certain genes alter brain structure and function. Studying synesthesia could essentially provide a window into how human brains in general create sensory representations of the outside world, Fisher said.

On site there are live links and a video.

Please note, comment, and forward.
 

Veronica B (34)
Tuesday March 6, 2018, 9:50 pm
Amazing!!!Thanks for Sharing,dear Fiona .
 

Ingo Schreiner (8)
Wednesday March 7, 2018, 12:42 am
noted
 

. (0)
Wednesday March 7, 2018, 3:01 am
Interesting phenomenon...👍
 

Animae C (506)
Wednesday March 7, 2018, 3:02 am
Fascinating stuff!!
i love scientific research!!

TY dear Fiona
 

Derry R (39)
Wednesday March 7, 2018, 4:18 am
Noted, thank you.
 

Derek R (294)
Wednesday March 7, 2018, 5:46 am
Noted, thanks.
 

Derek R (294)
Wednesday March 7, 2018, 5:47 am
Noted, thanks.
 

Peggy B (43)
Wednesday March 7, 2018, 8:53 am
Fascinating.
 

William C (0)
Wednesday March 7, 2018, 12:44 pm
Thank you.
 

W. C (7)
Wednesday March 7, 2018, 2:29 pm
Thanks.
 

Lenore K (0)
Wednesday March 7, 2018, 6:27 pm
oh i used to hear colors
 

Janet B (0)
Wednesday March 7, 2018, 8:00 pm
Thanks
 

Janet B (0)
Thursday March 8, 2018, 7:53 pm
Thanks
 

Danuta Watola (1251)
Friday March 9, 2018, 4:08 am
noted
 

Maria Papastamatiou (4)
Wednesday March 14, 2018, 12:09 pm
Most interesting. Thanks for posting.
 
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