Neuroscience

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."

For NPR’s 13.7: Cosmos and Culture blog, philosopher Alva Noë comments on a new Oxford journal, Neuroscience of Consciousness. He is skeptical of the persistent tendency of some neuroscientists “to think of consciousness itself as a neural phenomenon.” His own view, he writes “is that the brain is only part of the story, and that we can only begin to understand how the brain makes us consciousness by realizing that brain functions only in the setting of our bodies and our broader environmental (including our social and cultural) situation.”

“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.

A New York Times Op-Ed by Cornell psychiatry professor George Makari connects the surprise over the results of the widely-covered RAISE study to American psychiatry’s shift toward pharmacology and the oversimplification of disorders as brain diseases.

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.

Two companies have committed to FDA review for video games that they claim can be used to treat “ADHD,” but many scientists remain skeptical. “At the annual meeting of the American Academy of Child & Adolescent Psychiatry on Wednesday, Akili Interactive Labs presented data from a pilot study of its video game, Project: EVO, that showed some positive results in children with attention-deficit hyperactivity disorder (ADHD).”

Nature magazine reports on recent discoveries by neuroscientists that microbes that live in the intestinal track may have an influence on brain development and behavior. “Researchers have drawn links between gastrointestinal pathology and psychiatric neurological conditions such as anxiety, depression, autism, schizophrenia and neurodegenerative disorders—but they are just links.”

Writing on his critical psychiatry blog, Duncan Double critiques Joe Herbert’s piece on “Why can't we treat mental illness by fixing the brain?” in Aeon. While Herbert admits that there is a "mysterious and seemingly unfathomable gap" between psychology and neuroscience, which "bedevils not only psychiatry, but all attempts to understand the meaning of humanity,” he goes on to speculate that someday psychiatrists will be able to relate symptoms to brain activity.

The Boston Globe highlights a new book, “In the Mind Fields: Exploring the New Science of Neuropsychoanalysis,” by Casey Schwartz, which explores the importance on psychoanalysis in the age of neuroscience. The author explains that the psychoanalytic approach offers “an absolutely incomparable depth and attention to the specifics of each individual person and their reality. This is exactly what’s disappearing in neuroscience: the quirks, the particularities, the subtleties of the individual.”

People diagnosed with severe depression show the same changes in brain scans when they respond to a placebo as they do when they take an actual antidepressant, according to a new study. Researchers also found that those whose symptoms were decreased by a placebo were more likely to report relief from antidepressant drugs.

With the explosion of genetic testing and the emerging field of pharmacogenetics, patients can now take a DNA test and receive psychiatric drug recommendations customized to fit their genetic makeup. In an editorial for the latest issue of the Journal of Nervous and Mental Disease, Columbia University Psychiatrist Robert Klitzman warns that clinicians need to be aware of the limitations of these genetic tests being marketed to them.

NBC News reports that "Genetic tests to identify the most effective psychiatry drugs are the hot new thing in the race to create personalized treatments based on people's DNA.” An investigation by the New England Center for Investigative Reporting, however, found that these new tests are based on small studies conducted by device manufacturers, and those with financial conflicts on interest.

Hundreds of people have been given remote control deep brain stimulation implants for psychiatric disorders such as depression, OCD and Tourette’s. Yet DBS specialists still have no clue about its mechanisms of action and research suggests its hefty health and safety risks far outweigh benefits.

Julia Belluz at Vox interviews Russ Poldrack, the director of the Center for Reproducible Neuroscience, on recent efforts to “clean up the house of...

-An accessible explanation of what fMRI brain scan devices actually measure.

-Neuroskeptic critiques the premise of a journal article that declared that "neuroscientists who research mental health problems ought to listen to the views of people who have experienced those conditions."

-A Colorado rancher was initially diagnosed with bipolar disorder after a serious head injury, but actually had developed emotional blunting, synesthesia and high-level math skills.

-Neuroskeptic wonders why neuroscience has apparently never had any "big ideas" or schools of thought.

-Adding irrelevant information about neuroscience made psychological theories seem much more convincing to psychology students.

-Amy Johnson writes about how neuroscientific perspectives on her psychological struggles have helped her feel more agency in her growth as a person.

-Discover's Neuroskeptic and Scientific American's John Horgan discuss neuroscience and bad science on Bloggingheads.tv

-Neuroscientist Jonathan Roiser grapples with why it is that neuroscience has continued to have difficulties helping improve psychiatric treatments.

-An interview with a physicist from the UC Berkeley Brain Imaging Center about the strengths and weaknesses of brain imaging science.

The Toronto Star interviews the man "who brought neuroplasticity to the masses."