Brains and Economics

Have you ever thought about the impact your brain's rate of aging can make to your country's economics? According to a study by the International Institute for Applied Systems Analysis (ILASA), cognitive function of older brains in a given country is a better indication of the impact of aging on that country's economy than age-distribution. Stands to reason. If the population of brains is "functionally" younger than the average for that chronological age, there will be less of a social and economic burden placed on that economy. This will impact families, communities, social services, and you name it. Looking at the big picture, this is just another reason to do everything you can to keep your brain functioning younger as you grow older. If you're not already spending TEN minutes a day reading aloud and THIRTY minutes a day doing brain aerobic exercises, start now. Use the free ones on my website as a start.




http://www.kurzweilai.net/brain-function-a-new-way-to-measure-the-economic-impacts-of-aging?utm_source=KurzweilAI+Weekly+Newsletter&utm_campaign=834a8e0f31-UA-946742-1&utm_medium=email

Handedness and the Brain

Are you left handed? Know someone who is? You might enjoy some of the information in an article that was recently published in the Wall Street Journal. For example:

• On average there is no significant difference in IQ between righties and lefties

• There is some evidence that lefties are better at divergent thinking, or starting from existing knowledge to develop new concepts,

• Lefties have an advantage in sports such as tennis, fencing and baseball, when up against a righthanded competitor, but not in noninteractive sports such as gymnastics.

Check it out.

Abuse Changes a Child's Brain

fMRI tudies at the University College of London: The brains of children raised in violent families resemble the brains of soldiers exposed to combat. As adults, children who were abused in childhood tend to exhibit high levels of aggression, anxiety, depression, and other behavioral problems. Exposure to family violence is estimated to impact a significant minority of children (physical abuse range from 4% to 16%). Intimate partner violence affects between 8% and 25% of children.

http://www.wired.com/wiredscience/2011/12/neurology-of-abuse/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+wired%2Findex+%28Wired%3A+Index+3+%28Top+Stories+2%29%29

Brain and Low Back Pain

Individuals who complain of chronic low back pain may also experience some changes to their brain's activity. A recent study at McGill University associated chronic pain with reduced brain gray matter and impaired cognitive ability. This just might lend some credence to comments by pain sufferers (e.g., when my back hurts I just can't think straight). It certainly might provide impetus for those who do struggle with chronic back pain to take another look at strategies that could reduce the pain. The good news, according to the researchers, was that brain activity seemed to normalize after successful treatment.

http://www.jneurosci.org/content/31/20/7540

Your Brain's Happiness

Several of you have asked where you could find information about the Life Index Map. The Satisfaction with Life Index was created by Adrian G. White, an Analytic Social Psychologist at the University of Leicester. It is an attempt to show life satisfaction in different nations. Wikipedia lists 100 countriesm rankedm along with a copy of the map.

Happy Thanksgiving! And choose to be thankful for something. Your brain will likely function better in that state.

http://en.wikipedia.org/wiki/Satisfaction_with_Life_Index

Your Brain's GPS

Yes, it apparently has one. Studies by Ruhr University neuroscientists using mice have shown that the cerebellum contributes to a cognitive map of the environment that is created in the hippocampus. It does this through the integration of multisensory inputs combining external information (such as visual, auditory, olfactory and tactile cues) and inputs generated by self-motion (optic flow, proprioceptive, and vestibular information). This all contributes to helping you navigate successfully in a given environment.

http://www.sciencemag.org/content/334/6054/385
http://www.kurzweilai.net/the-cerebellum-as-navigation-assistant?utm_source=KurzweilAI+Weekly+Newsletter&utm_campaign=6c5e9735ca-UA-946742-1&utm_medium=email

Fight-Flight and Tend-Befriend

Studies by Shelley E. Taylor, et al: Males are more likely to use physical aggression in struggles for power within a hierarchy or to defend territory against external enemies. Females reliably show less physical aggression than males but they display as much or more indirect aggression in the form of gossip, rumor-spreading, and enlisting the cooperation of a third party in undermining an acquaintance. When confronted with acute stress, both males and females may initiate a fight-flight response. Behaviorally, however, females appear to move rather quickly to a tend-befriend pattern. Tending involves nurturing activities designed to protect the self and offspring that promote safety and reduce distress; befriending is the creation and maintenance of social networks that may aid in this process.

http://taylorlab.psych.ucla.edu/2000_Biobehavioral%20responses%20to%20stress%20in%20females_tend-and-befriend.pdf