Category Archives: Neurobiology

Old people can produce as many new brain cells as teenagers

“Old age may have its downsides, but losing the ability to grow new brain cells isn’t one: healthy people in their seventies seem to produce just as many new neurons as teenagers. The discovery overturns a decades-old theory about how … Continue reading

Posted in Neurobiology, Neuroscience

The Power of Negative Thinking

“Can our expectations for the future change how we remember the past? According to a new study published in the Journal of Experimental Psychology, they can—we remember unpleasant experiences more negatively if we expect to endure them again. Researchers at … Continue reading

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Sucrose drinks reduce prejudice and stereotyping (Study)

“Abstract Prejudice and stereotyping cause social problems and intergroup tension. The current work examined whether bolstering self-control by giving participants glucose would reduce stereotype use for an impression formation task. Previous work has demonstrated that self-control depends on biologically expensive … Continue reading

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Boy Without a Cerebellum Baffles Doctors

“Chase was also born prematurely, and he was legally blind. When he was 1 year old, doctors did an MRI, expecting to find he had a mild case of cerebral palsy. Instead, they discovered he was completely missing his cerebellum … Continue reading

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“Why you can’t have more than 147.8 friends” (Study, in TWSJ)

“Many years ago Mr. Dunbar famously noticed that there is a tight correlation between the size of a primate’s brain and the size of the social group its species generally forms. On this basis human beings should live in groups … Continue reading

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Amazing video about the strange powers of placebos

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Prosociality personality: Genetic factors women 50%, men 20% (Study, in TheIndependent)

“Women have a stronger genetic predisposition to help other people compared with men, according to a study that has found a significant link between genes and the tendency to be “nice”. The research, based on an analysis of nearly 1,000 … Continue reading

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Toward molecular personality scales for the five-factor model. (Study)

“There is growing evidence that personality traits are affected by many genes, all of which have very small effects. As an alternative to the largely unsuccessful search for individual polymorphisms associated with personality traits, the authors identified large sets of … Continue reading

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Drug Abuse Linked To Inability To Recognize Basic Emotions (Study, in MNT)

University of Granada scientists have analyzed the relationship between drug abuse and recognition of basic emotions (happiness, surprise, wrath, fear, sadness and disgust) by drug-abusers. Different studies revealed that drug-abusers have difficulty in identifying negative emotions by their facial expression: … Continue reading

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Mark Robert Waldman (TEDxConejo, March 2010)

I liked this video and Mark Robert Waldman speaking about the importance and influence of meditating on (your personal) big idea(s).

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Think Different: How Perception Reveals Brain Differences (Scientific American Mind, Study)

“The ways in which brains differ from one another show up in the ways their owners perceive the world.” “Rees’s studies establish that differences in the morphology, or shape, of our brains are mirrored in differences in the way we … Continue reading

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The Socioeconomics of Parenting (Jonah Lehrer)

“How much do the decisions of parents matter? Most parents believe that even the most mundane acts of parenting—from their choice of day care to their policy on videogames—can profoundly influence the success of their children. Kids are like wet … Continue reading

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Newly discovered RNA steers brain development (Harvard Medical School study)

“FINDINGS: A newly discovered class of RNA molecules helps elucidate the long-standing scientific question of how a person’s external experiences turn on the genes that over time help shape the connections among cells that make up the human brain. Called … Continue reading

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Friendships Moderate an Association between a Dopamine Gene Variant and Political Ideology (Study)

“Here, we hypothesize that individuals with a genetic predisposition toward seeking out new experiences will tend to be more liberal, but only if they are embedded in a social context that provides them with multiple points of view. Using data … Continue reading

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The Undesigned Brain is Hard to Copy (Science Not Fiction, blog)

“The brain is hardware, the mind is software. Therefore, to run the mind on different hardware, it just has to be “ported” or “emulated” the way a computer program might be. Timothy B. Lee (not the internet inventing one) counters … Continue reading

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How to increase serotonin in the human brain without drugs (Study)

“The study by Perreau-Linck and colleagues36 is the first to report that self-induced changes in mood can influence serotonin synthesis. […] Exposure to bright light is a second possible approach to increasing serotonin without drugs. […] Several lines of research … Continue reading

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Scientists Disrupt Moral Reasoning With Magnets To The Skull (Study)

“Want to make somebody lose her belief that harming somebody else is wrong? All you have to do is hold a special magnet up to her head in the right place. Using a technique called transcranial magnetic stimulation – in … Continue reading

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The brains of placebo responders still feel pain, but interpret it differently (Study)

“In placebo responders, activity dropped in areas processing pain, but increased in areas involved in emotion. This suggests that, rather than blocking pain signals into the brain, the placebo is changing the interpretation of pain.” http://www.newscientist.com/article/dn19944-would-a-placebo-work-for-you.html

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Joseph LeDoux on “altering memories” (Video, 5 min., Jan. 2010)

“Your memory is just as good as your last memory.” LeDoux speaking (shortly) about the inhibition of the memory consolidation process, the possiblity to erase/manipulate memories and the ethical aspect of memory manipulation (mentioning, that our memories are permanently being”manipulated” … Continue reading

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“Weizmann Institute scientists discover: A chemical signal in human tears”

“Specifically, they found that merely sniffing a woman’s tears – even when the crying woman is not present — reduces sexual arousal in men. Humans, like most animals, expel various compounds in body fluids that give off subtle messages to … Continue reading

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