Sharp Brains: Brain Fitness and Cognitive Health News

Epigenetics: Nature vs. Nurture?

In yesterday’s interview with Michael Posner, he says:

- “There is a growing number of studies that show the importance of interaction between our genes and each of our environments. Epigenetics is going to help us understand that question better, but let me share a very interesting piece of research from my lab where we found an unusual interaction between genetics and parenting.”

- “Good parenting, as measured by different research-based scales, has been shown to build good effortful control which, as we saw earlier, is so important. Now, what we found is that some specific genes reduced, even eliminated, the influence of the quality of parenting. In other words, some children’s development really depends on how their parents bring them up, whereas others do not – or do to a much smaller extent.”

Now check out this fascinating article in the Economist:Domestication and intelligence in dogs and wolves | Not so dumb animals

- “Monique Udell of the University of Florida … wondered whether learning rather than evolution explained his observations. Her team therefore worked with a mixture of pet dogs, dogs from animal shelters that had had minimal interaction with people, and wolves raised by humans.”

- “As they report in Animal Behaviour, the wolves outperformed both shelter dogs and pets. Indeed, Read the rest of this entry »

Training Attention and Emotional Self-Regulation – Interview with Michael Posner

Michael I. Posner is a prominent scientist in the field of cognitive neuroscience. He is currently an emeritus professor of neuroscience at the University of Oregon (DepartmentMichael Posner of Psychology, Institute of Cognitive and Decision Sciences). In August 2008, the International Union of Psychological Science made him the first recipient of the Dogan Prize “in recognition of a contribution that represents a major advance in psychology by a scholar or team of scholars of high international reputation.”

Dr. Posner, many thanks for your time today. I really enjoyed the James Arthur Lecture monograph on Evolution and Development of Self-Regulation that you delivered last year. Could you provide a summary of the research you presented?

I would emphasize that we human beings can regulate our thoughts, emotions, and actions to a greater degree than other primates. For example, we can choose to pass up an immediate reward for a larger, delayed reward.

We can plan ahead, resist distractions, be goal-oriented. These human characteristics appear to depend upon what we often call “self-regulation.” What is exciting these days is that progress in neuroimaging and in genetics make it possible to think about self-regulation in terms of specific brain-based networks.

Can you explain what self-regulation is?

All parents have seen this in their kids. Parents can see the remarkable transformation as their children develop the ability to regulate emotions and to persist with goals in the face of distractions. That ability is usually labeled ‘‘self-regulation.’’

The other main area of your research is attention. Can you explain the brain-basis for what we usually call “attention”?

I have been interested in how the attention system develops in infancy and early childhood.

One of our major findings, thanks to neuroimaging, is that there is not one single “attention”, but three separate functions of attention with three separate underlying brain networks: alerting, orienting, and executive attention. Read the rest of this entry »

Cognitive, Brain News RoundUp

Brain Health NewsInteresting recent news:

For more on these news, and commentary: Read the rest of this entry »

Brain Health for lawyers

The Complete Lawyer, a legal publication distributed to bar members in several states, just published an article on Ten Important Truths About Aging: How we age is at least partially under our control, By Elkhonon Goldberg and Alvaro Fernandez.
 

We were happy to contribute to the ongoing debate about ethics and aging in the legal profession, building on our previous post on the topic. 
 

What are those “Ten Truths”? Well, here you are the outline:

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