Commissioned by the Society for Neuroscience, Washington DC. This painting by Greg Dunn, “Beyond the Horizon.” is of the developing cerebral cortex, at about week 15 of human gestation.
Greg Dunn is a neuroscience PhD student at the University of Pennsylvania and an artist passionate about Japanese minimalist scrolls. While these interests may appear radically incongruous, Dunn’s artwork suggests otherwise. The artist creates dazzling works of enamel, gold leaf and ink inspired by science.
Some of the works, like “Hippocampus II,” give those of us who do not spend a lot of time around a microscope a look at the complex architecture of our neurons. And then there are the occasional stumpers that are impossible to decipher as neuron or nature.
Learn more about Greg’s inspiration and influencers in this interview in The Beautiful Brain
A woman’s memory of an experience is less likely to be accurate than a man’s if it was unpleasant and emotionally provocative, according to research undertaken by University of Montreal researchers at Louis-H Lafontaine Hospital. “Very few studies have looked at how ‘valence’ and ‘arousal’ affect memories independently of each other, that is to say, how attractive or repulsive we find an experience and how emotionally provocative it is,” said corresponding author Dr. Marc Lavoie, of the university’s Department of Psychiatry and the hospital’s Fernand-Seguin Research Center. “Our test relied on photos – we found firstly that highly arousing pictures blur women’s capacity to determine whether they’ve seen it before, and secondly that women have a clearer memory of attractive experiences than men. Arousal has an enhancing effect on the memory of men however, as does ‘low valence’ or unpleasantness.” [continue reading…]
Source: Sean Mackey, Stanford. Plos One, Journal Neuroscience: Archives of Internal Medicine
Melinda Beck’s Wall Street Journal article Rewiring the Brain to Ease Pain looks at how you think about pain can have a major impact on how it feels.
That’s the intriguing conclusion neuroscientists are reaching as scanning technologies let them see how the brain processes pain.
That’s also the principle behind many mind-body approaches to chronic pain that are proving surprisingly effective in clinical trials.
Some are as old as meditation, hypnosis and tai chi, while others are far more high tech. In studies at Stanford University’s Neuroscience and Pain Lab, subjects can watch their own brains react to pain in real-time and learn to control their response—much like building up a muscle. When subjects focused on something distracting instead of the pain, they had more activity in the higher-thinking parts of their brains. When they “re-evaluated” their pain emotionally—”Yes, my back hurts, but I won’t let that stop me”—they had more activity in the deep brain structures that process emotion. Either way, they were able to ease their own pain significantly, according to a study in the journal Anesthesiology last month.
In this new RSAnimate, renowned psychiatrist and writer Iain McGilchrist explains how our ‘divided brain’ has profoundly altered human behaviour, culture and society. Taken from a lecture given by Iain McGilchrist as part of the RSA’s free public events programme.
