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Do Human Brains Become Larger By Using Tools?

From RIKEN Research:

Scientists from RIKEN Brain Science Institute in Wako, Japan and the Institute of Neurology at University College London have discovered that the brains of macaque monkeys undergo significant development when they are taught how to use tools. This finding may imply that our advanced human brains got as big and powerful as they did thanks to using tools, rather than the other way around.

The researchers used a technique called voxel-based morphometry (VBM) to classify areas of brain tissue in their MRI images as grey matter, white matter, or cerebro-spinal fluid, and to compare the volume of each tissue at different stages of learning. Read more »

*This blog post was originally published at Medgadget*

People With A Certain Kind Of Brain Damage Don’t Care If They Lose Money

Have Caltech scientists discovered an area of the brain evolved since the development of currency? The headline effectively suggests that, but the truth is probably a bit more nuanced.

The research team responsible for these findings consists of Benedetto de Martino, a Caltech visiting researcher from University College London and first author on the study, along with Caltech scientists Colin Camerer, the Robert Kirby Professor of Behavioral Economics, and Ralph Adolphs, the Bren Professor of Psychology and Neuroscience and professor of biology.

The study involved an examination of two patients whose amygdalae had been destroyed due to a very rare genetic disease; those patients, along with individuals without amygdala damage, volunteered to participate in a simple experimental economics task. Read more »

*This blog post was originally published at Medgadget*

Nanoparticles Act As Mini-Bombs For Cancer Cells

New cancer targeting nanoparticles seem like daily news here at Medgadget. Today we have gold nanoparticles developed jointly by researchers at Rice University and A.V. Lykov Heat and Mass Transfer Institute in Minsk, Belarus that create plasmonic nanobubbles when targeted with a laser. These particles can be guided to a tumor by antibodies and then activated to generate tiny explosions, so clinicians one day will be able to stay back and enjoy. Read more »

*This blog post was originally published at Medgadget*

Emergency Help: iPhone App Locates Closest Defibrillators (AEDs)

First Aid Corps, an organization working on helping the public respond to sudden cardiac arrests, has unveiled an iPhone app that can pinpoint the location of the closest automatic external defibrillator (AED) within seconds.

Currently the database is just beginning to fill up but First Aid Corps has partnered with The Extraordinaries, a volunteer organization, to have people locate and photograph AED’s in their community.

The app is free and you can download it and get started mapping AED’s and maybe help save someone’s life.

Here’s a promo video for the project:

Demo of the AED Nearby app:

AED Nearby iTunes link…

Flashbacks: AED Location Database Points to Nearest Life Saving Device; Do You Know Where Your AED Is At?

*This blog post was originally published at Medgadget*

The 2009 Medical Weblog Awards: Vote For Your Favorite Blog

The 2009 Medical Blog Awards

The polls are now open in the Sixth Annual Medical Weblog Awards.

  • Best Medical Weblog
  • The Blog that Ate Manhattan

    Clinical Cases and Images

    Clinical Correlations

    Dr Shock MD PhD

    Gary Schwitzer’s HealthNewsReview Blog

    mobihealthnews

    Musings of a Distractible Mind

    Please vote here… Read more »

    *This blog post was originally published at Medgadget*

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    How To Be A Successful Patient: Young Doctors Offer Some Advice

    I am proud to be a part of the American Resident Project an initiative that promotes the writing of medical students residents and new physicians as they explore ideas for transforming American health care delivery. I recently had the opportunity to interview three of the writing fellows about how to…

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    Latest Book Reviews

    Book Review: Is Empathy Learned By Faking It Till It’s Real?

    I m often asked to do book reviews on my blog and I rarely agree to them. This is because it takes me a long time to read a book and then if I don t enjoy it I figure the author would rather me remain silent than publish my…

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    The Spirit Of The Place: Samuel Shem’s New Book May Depress You

    When I was in medical school I read Samuel Shem s House Of God as a right of passage. At the time I found it to be a cynical yet eerily accurate portrayal of the underbelly of academic medicine. I gained comfort from its gallows humor and it made me…

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    Eat To Save Your Life: Another Half-True Diet Book

    I am hesitant to review diet books because they are so often a tangled mess of fact and fiction. Teasing out their truth from falsehood is about as exhausting as delousing a long-haired elementary school student. However after being approached by the authors’ PR agency with the promise of a…

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