When you learn any new theory (such as the concepts of perspective, value, and anatomy) your left brain is profoundly involved. Scientists have found that verbal and rational knowledge is located in the left part of your brain. Image provided by Shutterstock Drawing: Science and the Brain I’m going to leave this little tidbit from the course here for your perusal: I’m eager to share what I’ve learned about how the brain responds while drawing, but I’m not able to explain this process as well as Fiorella Carretti, the course instructor. This course has been an eye-opener for me it has given me a new perspective on the action of drawing. Now, I have a way to brush up on my drawing skills at my convenience. But what really jumped out to me was the Figure Drawing course. When HOW Design University partnered with Sessions College, several of their courses piqued my interest. I’ve been searching for a way to brush up on figure drawing without having to drive out of the way to an open studio and something that I could do during my limited hours of downtime.
Not even when I decided to revisit figure drawing years later. In all honesty, considering how the brain hemispheres interacted while drawing wasn’t ever on my radar.
I didn’t realize how my left brain interfered with the accuracy of the object’s proportions on paper. And I really didn’t expect to learn about which parts of the brain that I should consciously ignore while drawing.ĭuring my time as a fine art undergrad, I sweated over the finest of details to draw a realistic representation of the objects in front of me. I knew to expect an overall review of figure proportions, but I did not expect to learn about the science behind drawing and how the brain works to deliver the sketches on paper. The research also suggests that early “differences in neuronal structure and survival, in combination with lifelong differences in immune activity and neurotransmission across hemispheres, lead to unilateral vulnerability,” potentially explaining the corresponding affect of Parkinson’s symptoms on the body, the researchers concluded.Sketchpad, charcoals and pencils at the ready, I begin the first lesson in Figure Drawing. There is huge potential to translate these findings into new therapeutic strategies,” she added. “Many of these changes are clustered around genes known to impact Parkinson’s risk. “For Parkinson’s, this is significant: people whose hemispheres are more alike early in life experienced faster disease progression, while people whose hemispheres were more asymmetric had slower disease progression,” Labrie said. As we age, however, our hemispheres become more epigenetically similar,” Viviane Labrie, PhD, the study’s lead author, said in a press release. “We all start out with prominent differences between the left and right sides of our brains (epigenetic asymmetry). Consistently, aging was seen to be associated with a progressive loss of asymmetry in epigenetic regulation in both patients and controls, though that loss was more pronounced in patients, the study reported.īut researchers noted that patients with a long disease course had greater hemispheric epigenetic asymmetry than did those with a shorter, or faster, disease course. With increasing age and disease duration, Parkinson’s patients gradually see their disease affect both sides of the body. The findings were replicated in another group of 21 patients and 31 controls. Notably, the genes that were abnormally regulated in people with matched symptoms, but not in those with unmatched symptoms, were mostly involved in immune responses, neurodevelopment, and nerve cell-to-cell communication (neurotransmission). Researchers then found that the brain hemisphere with most epigenetic abnormalities, compared to controls, often matched the side of the body with most prominent disease symptoms. In patients, some of the genes that were asymmetrically regulated were known risk Parkinson’s genes. In controls, most genes were involved in neurodevelopment and brain diseases, the researchers found, suggesting that their differential activation could be causing one hemisphere to be more vulnerable to brain disorders than the other. But while a total of 3,068 genes that were differentially regulated across hemispheres in controls, this number rose to 4,691 in the brains of Parkinson’s patients.
Results showed that both controls and patients had extensive asymmetries in DNA methylation - a type of epigenetic modification - in cortical neurons. To find out whether asymmetric epigenetic regulation plays a role in Parkinson’s disease, the team examined neurons isolated from the left or right prefrontal cortex - the region of the brain that is mostly affected in Parkinson’s - from 57 people with this disease and 48 healthy controls.
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