5 studies you may have missed
Researchers found a connection between head trauma and brain plaques linked to Alzheimer's.
December 27th, 2013
08:29 AM ET

5 studies you may have missed

Here's a roundup of five medical studies published this week that might give you new insights into your health, mind and body. Remember, correlation is not causation – so if a study finds a connection between two things, it doesn't mean that one causes the other.

1. A shock to make you forget
Journal: Nature Neuroscience

We all have memories of experiences we'd rather not look back on, which trigger strong emotions when we reflect on them. Scientists demonstrated in a small study that electricity may be able to manipulate what we remember, although it's not clear if the technique would work with personal memories.

In this experiment, 42 people with severe depression watched two narrated slideshows describing unpleasant stories. A week later, they had to remember one of the stories after viewing part of a relevant slide they had seen before. Then, some participants received electroconvulsive therapy and had to recall both stories when they woke up from anesthesia. Others got tested 24 hours later, and a third group did not receive electroconvulsive therapy.

Those tested 24 hours after the shock treatment showed a curious pattern: They could not remember the story they had been prompted to recall right before the electroconvulsive therapy.

“I think it’s interesting as a proof of concept, but I don’t think it’s necessarily going to be a robust treatment because it’s so invasive,” psychologist Elizabeth Phelps told TIME.com.

Read more from TIME.com FULL POST

About this blog

Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.