We are what we experience: study
the ups and downs, and everything in between -- shape us, stay with us and influence our emotional set point as adults, according to a new study led by Virginia Commonwealth University researchers.
"In this time of emphasis on genes for this and that trait, it is important to remember that our environmental experiences also make important contributions to who we are as people," said principal investigator Kenneth Kendler, M.D., director of the VCU Virginia Institute for Psychiatric and Behavioral Genetics.
"When I was growing up, in talking about the importance of a good diet, we used to say 'You are what you eat.' What this study shows is that to a substantial degree, 'you are what you have experienced.' That is, your life history stays with you in impacting on your background book, for good or for ill," he said.
Kendler, professor of psychiatry, and human and molecular genetics in the VCU School of Medicine, and an international team of researchers from VCU and other universities, analyzed nine data sets of more than 12,000 identical twins with symptoms of depression and/or anxiety through the lifespan.
By studying identical twins, researchers have a pair of individuals who are born with identical genetic compositions and a shared family environment. Their environments may begin to change as they begin to make divergent decisions as they get older that come with lifestyle, diet or friends.
Participants completed reports relating to their own symptoms of anxiety and depression in a five-to-six-year period. The participants varied in age and were from American and European population-based registries.
According to Kendler, statistical models, developed by his colleague Charles Gardner, Ph.D., a research associate in the VCU Department of Psychiatry, were used to observe how components of individual variation changed over time. The team observed that as the twins moved from childhood into late adult life, they increasingly diverged in their predicted levels of symptoms, but after that point, stopped further diverging. Further, they noted that environmental experiences contribute substantially to stable and predictable inter-individual differences in levels of anxiety and depression by mid-life in adults.
More information: The study first appeared online Sept. 23, and in the October issue of Psychological Science, a journal of the Association for Psychological Science.
Provided by Virginia Commonwealth University
- Mood and experience: Life comes at you Jun 28, 2011 | not rated yet | 0
- Genetic factors strongly shape how peers are chosen Aug 06, 2007 | not rated yet | 0
- Voluntary exercise does not appear to alleviate anxiety and depression Aug 04, 2008 | not rated yet | 0
- Study finds genetic link between sleep disorders and depression in young children Feb 01, 2009 | not rated yet | 0
- Gene involved in predisposition to alcohol consumption identified Apr 04, 2011 | not rated yet | 0
- Motion perception revisited: High Phi effect challenges established motion perception assumptions Apr 23, 2013 | 3 / 5 (2) | 2
- Anything you can do I can do better: Neuromolecular foundations of the superiority illusion (Update) Apr 02, 2013 | 4.5 / 5 (11) | 5
- The visual system as economist: Neural resource allocation in visual adaptation Mar 30, 2013 | 5 / 5 (2) | 9
- Separate lives: Neuronal and organismal lifespans decoupled Mar 27, 2013 | 4.9 / 5 (8) | 0
- Sizing things up: The evolutionary neurobiology of scale invariance Feb 28, 2013 | 4.8 / 5 (10) | 14
Pressure-volume curve: Elastic Recoil Pressure don't make sense
23 hours ago From pressure-volume curve of the lung and chest wall (attached photo), I don't understand why would the elastic recoil pressure of the lung is...
If you became brain-dead, would you want them to pull the plug?
May 17, 2013 I'd want the rest of me to stay alive. Sure it's a lousy way to live but it beats being all-the-way dead. Maybe if I make it 20 years they'll...
MRI bill question
May 15, 2013 Dear PFers, The hospital gave us a $12k bill for one MRI (head with contrast). The people I talked to at the hospital tell me that they do not...
Ratio of Hydrogen of Oxygen in Dessicated Animal Protein
May 13, 2013 As an experiment, for the past few months I've been consuming at least one portion of Jell-O or unflavored Knox gelatin per day. I'm 64, in very...
Alcohol and acetaminophen
May 13, 2013 Edit: sorry for the typo in the title , can't edit I looked around on google quite a bit and it's very hard to find precise information on the...
Marie Curie's leukemia
May 13, 2013 Does anyone know what might be the cause of Marie Curie's cancer
- More from Physics Forums - Medical Sciences
More news stories
Patients with treatment-resistant major depression saw dramatic improvement in their illness after treatment with ketamine, an anesthetic, according to the largest ketamine clinical trial to-date led by researchers from the ...
Psychology & Psychiatry 1 hour ago | 4.5 / 5 (2) | 0 |
The latest makeover to a massive psychiatric tome honored by some, reviled by others and even called the "Bible" of mental disorders is being released Saturday with a host of new changes.
Psychology & Psychiatry 13 hours ago | not rated yet | 0
(HealthDay)—Most Medicare beneficiaries treated in inpatient psychiatric facilities (IPFs) exhibit characteristics associated with hospital readmission, according to a report prepared for the National Association ...
Psychology & Psychiatry May 17, 2013 | not rated yet | 0
Skydivers show the same level of physical stress before every jump whether a first-timer or experienced jumper, say Northumbria researchers.
Psychology & Psychiatry May 17, 2013 | not rated yet | 0 |
Children of depressed parents pick up on their parents' sadness—whether mom or dad realizes their mood or not.
Psychology & Psychiatry May 17, 2013 | 4.5 / 5 (2) | 1 |
Regular consumption of coffee is associated with a reduced risk of primary sclerosing cholangitis (PSC), an autoimmune liver disease, Mayo Clinic research shows. The findings were being presented at the Digestive Disease ...
1 hour ago | not rated yet | 0 |
Research presented at Digestive Disease Week (DDW) explores new methods for managing digestive health through diet and lifestyle.
1 hour ago | not rated yet | 0
The use of a smartphone application significantly improves patients' preparation for a colonoscopy, according to new research presented today at Digestive Disease Week (DDW). The preparation process, which begins days in ...
1 hour ago | not rated yet | 0
There are significant cost and risk factors associated with two procedures commonly used to diagnose or treat gastrointestinal problems, according to research presented at Digestive Disease Week (DDW).
1 hour ago | not rated yet | 0
An increasing number of U.S. children are experiencing gastrointestinal issues that require interventions to resolve, according to research presented at Digestive Disease Week (DDW).
16 hours ago | not rated yet | 0 |
A new case of the deadly coronavirus has been detected in Saudi Arabia where 15 people have already died after contracting it, the health ministry announced on Saturday on its Internet website.
14 hours ago | not rated yet | 0