Epigenetics

Philip Perry, writing for Big Think, covers studies in epigenetics revealing how trauma can be passed on through generations. Article →

An increase in suicidal thoughts is a known and serious side-effect for various types of antidepressants. Recent studies suggest that there may be some...

In a review editorial for the journal Psychotherapy and Psychosomatics, neurobiology researcher Steven Dubovsky from the University at Buffalo argues against the adoption of...

Researchers at Duke University who studied 183 adolescents for three years found that increased depression associated with poverty may be mediated by epigenetic changes in DNA. The...

The March 3^rd, 2016 edition of the Wall Street Journal featured an article by past President of the American Psychiatric Association (APA) Jeffrey Lieberman and his colleague, computational neuroscientist Ogi Ogas. The article was entitled “Genetics and Mental Illness—Let’s Not Get Carried Away.” In their piece, the authors started by expressing the belief that a recent study identified a gene that causes schizophrenia, and then discussed whether it is desirable or possible to remove allegedly pathological genes in the interest of creating a future “mentally perfect society.” The authors of the article, like many previous textbook authors, seem unfamiliar with the questionable “evidence” put forward by psychiatry as proof that its disorders are “highly heritable” In fact, DSM-5 Task Force Chair David Kupfer admitted that “we’re still waiting” for the discovery of “biological and genetic markers” for psychiatric disorders.

In this article I will attempt to debunk one of the great “scientific” smoke and mirrors shows of the past half century—the claim that stories of reunited separated MZ (monozygotic, identical) twin pairs indicate that heredity plays a major role in causing human behavioral differences. These stories, which are often used to sell the false ideology of genetic determinism, have entered the public imagination in a way that academic research results never could. Here I will show that these stories provide no evidence whatsoever that (as yet undiscovered) “genes for behavior” influence human behavioral development.

MIA contributor Jonathan Leo, writing for Slate, weighs in on the research that claims to have discovered a genetic basis for schizophrenia. “We now...

“Overall, this study showed that the information and awareness campaign had almost no significant effects on the general public's attitudes toward people affected by either schizophrenia or depression,” the researchers, led by German medical sociologist Anna Makowski, wrote. “One could assume that deeply rooted convictions cannot be modified by rather time-limited and general activities targeted at the public.”

In recent months, two teams of researchers in the UK and the US published complementary findings about the epigenetic origins of schizophrenia that have scientific communities who indulge in ‘genetic conspiracy theories’ abuzz. While these results are intriguing, and no doubt involve pathbreaking research methodologies, this line of thought represents a decontextualized understanding both of the symptoms that are typically associated with schizophrenia, and their causes.

A new NIH-funded study suggests that children from low-income environments are more likely to have neurological impairments. The researchers claim that these neurodevelopmental issues are “distinct from the risk of cognitive and emotional delays known to accompany early-life poverty.”

In “When Phrenology Was Used in Court,” Geoffrey S. Holtzman writes for Slate about the spurious use of brain science in legal cases. In the 1800’s the “science of phrenology” promised to reveal criminal psychological traits by measuring the skull and today defense teams still employ neurogenetic explanations for their client’s violent behavior.

Dr. Max Pemberton “The Mind Doctor” weighs in on the Cochrane review which questioned the evidence for Ritalin for ADHD. He writes: “History is...

“My message today is that your state of gut will affect your state of mind. To have a healthy brain, we may need a...

Acknowledging that current depression treatments are failing many people, researchers from Michigan State and MIT have developed a new model for understanding how multiple psychological, biological, social and environmental factors contribute to depression.

NPR reports how loneliness can change our bodies and affect our physical and mental health. "There are things we can do to get out of a depressed or lonely state, but they're not easy," they report. "Part of the reason is because these negative psychological states develop some kind of molecular momentum."

Will Storr, for Mosaic Science, wades into the world of neuroplasticity and explores to what extent our brains are capable of changing through adulthood. He asks if the tendency to overemphasize the findings of epigenetics and neuroplasticity isn’t tied to our cultural belief that individuals are totally free to create themselves and pursue the American dream.

"We found that the anatomy of the chimpanzee brain is more strongly controlled by genes than that of human brains, suggesting that the human brain is extensively shaped by its environment no matter its genetics," said Aida Gómez-Robles, postdoctoral scientist at the GW Center for the Advanced Study of Human Paleobiology and lead author on the paper. "So while genetics determined human and chimpanzee brain size, it isn't as much of a factor for human cerebral organization as it is for chimpanzees."

“My vegetable beds have even buoyed me through more acute stressors, such as my medical internship, my daughter’s departure for college, and a loved one’s cancer treatment,” writes Dr. Daphne Miller. Now neuroscientists are attempting to study the antidepressant effects of soil microbes in hopes of unlocking the secrets of a powerful mood enhancer.

In the Boston Globe, Sarah Schweitzer tells the story of a young boy brutally abused by his parents then given to his grandparents who struggled with extreme poverty and homelessness. “Researchers now understood that trauma could alter the chemistry of developing brains and disrupt the systems that help a person handle stress, propelling a perpetual state of high alert. The consequences could be lifelong. As an adult, he’d be more likely to suffer anxiety and depression and heart disease and stroke. His ability to hold a job, manage money, and make good decisions could be compromised. And there was evidence, controversial but mounting, that he could pass on these traits to his children.”

Researchers recently completed a first of its kind, large-scale international survey of attitudes about mental health and they were surprised by the results. According to their analysis published in this month’s issue of the Journal of Affective Disorders, people in developed countries, like the United States, are more likely to assume that ‘mental illnesses’ are similar to physical illnesses and biological or genetic in origin, but they are also much less likely to think that individuals can overcome these challenges and recover

The National Institute of Mental Health (NIMH) is increasingly shifting its research emphasis toward attempting to uncover biomarkers for “mental diseases,” which may have dramatic consequences for research and training in clinical psychology. In an article to be published in next month’s Professional Psychology: Research and Practice, Marvin Goldfried outlines how the shift in funding priorities for psychological research is tied to the needs of pharmaceutical companies and the biological model in psychiatry.

While a great deal of the excitement about advances in psychological treatments comes from the potential for research in neuroscience to unlock the secrets of the brain, many mental health experts would like to temper this enthusiasm. A special issue of the Behavior Therapist released this month calls into question the predominant conception of mental illnesses as brain disorders.

Dr. Vincent Felitti details the connection between childhood trauma and negative mental health outcomes in adulthood in a powerful video.

Even thought current mental health treatments are “suboptimal,” there is a lack of attention paid to the preventative effects of diet and nutrition. Recent studies suggests that nutritional changes can influence the risk for mental health issues and that nutritional supplements, called nutraceuticals, can be prescribed for existing conditions.

“Stress damages the integrity of the hippocampus, which is the part of the brain that deals with memory and emotions,” Thor Benson writes for Salon. “Hormones like Cortisol and other biological reactions created by stress essentially disrupt the balance of how much white and grey matter the brain is creating, which affects how the brain operates.”