Introverts & Extroverts Have Different Brains: Which One Are You?

Scientists have discovered that the brains of introverts are actually different from those of extroverts. This isn’t too surprising, especially considering all of the research now coming out of the field of neuroplasticity. It refers to various changes that can take place in the brain (including changes in neural pathways and synapses) as a result of shifts in things like: a person’s behaviour or environment; their perception of the environment around them; neural processes; the way they think and feel and more.

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Computational Model Suggests Humans Are Naturally Wired To Be Naysayers

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We may cave in to peer pressure, marketing and persuasion, but faced with decisions, the default response programmed into our brains is to say “no”, a recent study suggests.

The research is in PLOS Computational Biology. (full open access)

Research: “Existence and Control of Go/No-Go Decision Transition Threshold in the Striatum” by Jyotika Bahuguna, Ad Aertsen, and Arvind Kumar in PLOS Computational Biology doi:10.1371/journal.pcbi.1004233

Image: Inside the basal ganglia (highlighted in pink), Go and No-Go signals compete with each other. A new computational model suggests that the No-Go signals have the edge. Image credit: Gunnar Grah.

Popular brain stimulation doesn’t boost IQ

Despite its popularity, using a weak electric current to boost brainpower doesn’t live up to the hype. A new study shows that the most common form of the treatment actually has a statistically significant detrimental effect on IQ scores.

Published in the journal Behavioural Brain Research, the study adds to the increasing amount of literature showing that transcranial direct current stimulation—tDCS—has mixed results when it comes to cognitive enhancement.

“It would be wonderful if we could use tDCS to enhance cognition because then we could potentially use it to treat cognitive impairment in psychiatric illnesses,” says Flavio Frohlich, study senior author and assistant professor of psychiatry, cell biology and physiology, biomedical engineering, and neurology at the UNC School of Medicine.

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The National Institutes of Health funded this study.

We May Be Programmed to Say ‘No’

We may cave in to peer pressure, marketing and persuasion, but faced with decisions, the default response programmed into our brains is to say “no,” a recent study suggests.

A new computational model based on data from rodent brains shows that “Go” and “No-Go” signals compete in the brain, originating from the nerve cells in the striatum – a part of brain that plays a crucial role in decision making, learning and various motor functions. But, the deck is stacked against the Go neurons, which are expressed in D1 type dopamine receptors, says Arvind Kumar the senior author of the study and a researcher at the Department of Computational Biology at KTH Royal Institute of Technology.

Read more: http://www.laboratoryequipment.com/news/2015/05/we-may-be-programmed-say-no

I love being an intellectual person. I love intellectual people. But i cannot stand pretentious intellectuals.
It’s awesome if you know the capital of the Ukraine or the favorite dessert of the wife of the first Emperor of the Ming Dynasty. But do not shove it down other people’s throats that you are superior because of that inelligence.
Pursuit of knowledge is a fantastic endeavor. Read books to expand your mind, try new things, do stuff. But don’t put other people down because you believe your mind is better than theirs.
Some people like to listen to poppy songs. Some people sit watch tv soaps everyday. Some people sit down in nature and will watch a flower for hours because of how it is so beautifully crafted. This does not mean that they do not have an enriched mind and a thriving soul. You don’t have to be buried in equations and books to have an intellectual mind.

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“Psychometry”. Illustration I created for Light Grey Art Lab’s exhibition “Guts

“The psyche encompasses the human mind, conscious and unconsciousness. How does our psyche interact with our physiology? This piece explores the disconnect that can happen between our mind and body.

Dissociative disorders are conditions that involve disruptions or breakdowns of memory, awareness, identity, or perception. People with dissociative disorders use dissociation, a defense mechanism, pathologically and involuntarily. Dissociative disorders can range in extremity from alternative personalities, to a disconnected surreal feeling between body and reality.”