Does Stress Damage Your Brain?

Military combat often causes extreme stress, leaving many diagnosed with the psychiatric condition of post-traumatic stress disorder, or PTSD. PTSD is associated with several brain structure and function abnormalities. “Although it is tempting to conclude that these abnormalities were caused by the traumatic event, it is also possible that they were pre-existing risk factors that increased the risk of developing PTSD upon the traumatic event’s occurrence,” explains researcher Roger Pitman. Drs. Kasai and Yamasue and their colleagues at the Graduate School of Medicine, University of Tokyo in Tokyo, Japan, sought to examine this association in a new study published in the March 15th issue of Biological Psychiatry.

The authors measured the gray matter density of the brains of combat-exposed Vietnam veterans, some with and some without PTSD, and their combat-unexposed identical twins using magnetic resonance imaging (MRI). The MRI images allowed the investigators to compare specific brain regions of the siblings. They found that the gray matter density of the pregenual anterior cingulate cortex, an area of the brain involved in emotional functioning, was reduced in veterans with PTSD, but not in their twins who had not experienced combat. According to Dr. Pitman, “this finding supports the conclusion that the psychological stress resulting from the traumatic stressor may damage this brain region, with deleterious emotional consequences.

The good news is that many other studies have demonstrated that our brains are plastic and have the ability to regenerate. The problem is that brain regeneration is not always a straight gain for loss thing. Diet, exercise, behavioral habits, attitude, and specific regenerative exercises all can play a substantial role in how or if certain brain structures recover from stressor damage. Learning how to de-stress and more easily roll with life’s stresses can speed the process of recovery. I recommend self-hypnosis, Rapid Eye Technology’s Skills for Life, and meditation as effective self-healing methods.

Change Literally in the Blink of an Eye

You can make those life changes you want to make in the blink of an eye.

You can make those life changes you want to make in the blink of an eye.

New research out of MIT’s McGovern Institute for Brain Research, shows that brain neurons can change in as little as two minutes even in adults. For years scientists have known about the plasticity of the brain – that it can change neuronal connections and even grow new brain cells. But until recently, no one had studied the speed at which these changes can occur.

It is unlikely that a brain cell would grow to maturity and make all those dendrite connections in just two minutes. Some other mechanism must be at work.
Continue reading

PTSD in Veterans Engaged in Peacekeeping Situations

Peacekeepers are exposed to traumatic events which they are helpless to prevent

Peacekeepers are exposed to traumatic events which they are helpless to prevent

While the relationship among PTSD and physical and mental health impairment is well developed in combat veterans, it is less studied among the deployed peacekeeping veteran population. Peacekeepers are exposed to traumatic events which they are helpless to prevent under the United National rules of engagement, which state soldiers must show restraint and neutrality. The feeling of being unable to control a situation at the time of trauma is an important risk factor for developing PTSD.

Research, published this month in the Canadian Journal of Psychiatry, found anxiety disorders such as PTSD apply just as much to peacekeeping veterans as to combat veterans. “This finding is important to clinicians working with the newer generation of veterans, as it stresses the importance of including measures of quality of life when evaluating veterans to better address their rehabilitation needs,” says Dr. Richardson. “It is not enough to measure symptom changes with treatment; we need to objectively assess if treatment is improving their quality of life and how they are functioning in their community.”

Continue reading

Reality Tunnels

Cause and effect thinking tends to tunnel our thought processes.

Cause and effect thinking tends to tunnel our thought processes.

Cause and effect thinking tends to tunnel our thought processes over time. That is, we believe one thing happens because of another – then we tunnel that cause-effect relationship into an “only” relationship. One thing happens only because of another.

Reality Tunnels have the form or structure of:

X causes Y

Therefore – (Reality Tunneling)

Y must be caused (only) by X

What if Y is caused by Z? Or X+Z or X-Z? Or something else entirely? According to many quantum physicists, causes and effects are so entwined together it’s impossible to separate one from the other. Basically, there is never one cause for one effect or one effect for one cause. Perhaps reality is a big mess when it comes to cause and effect. To imagine that there is only one cause for any given effect tends to deny reality.

Continue reading

Eye and Body Movement for Problem Solving?

Directing a person's eye movements or attention in specific patterns can also aid in solving complex problems.

Directing a person’s eye movements or attention in specific patterns can also aid in solving complex problems.

A new study appearing in an upcoming issue of the journal Psychonomic Bulletin & Review, is the first to show that a person’s ability to solve a problem can be influenced by how he or she moves.

“Our manipulation [of the body] is changing the way people think,” said University of Illinois psychology professor Alejandro Lleras, who along with Vanderbilt University postdoctoral researcher Laura Thomas, conducted the study. “In other words, by directing the way people move their bodies, we are – unbeknownst to them - directing the way they think about the problem.”

“The results are interesting both because body motion can affect higher order thought, the complex thinking needed to solve complicated problems, and because this effect occurs even when someone else is directing the movements of the person trying to solve the problem,” Lleras said.

According to Lleras, this type of consciousness, “embodied cognition,” describes the link between body and mind in a new and insightful way.

Continue reading