New study finds psilocybin greatly and quickly relieves depression.
NeuroPsychology. PsychTests. Sleep. Labeled imaging anatomy cases. Psychology’s 10 Greatest Case Studies – Digested. Medial temporal and prefrontal function: recent behavioural disconnection studies in the macaque monkey - PubMed. Ablative Brain Surgery. Ablative brain surgery (also known as brain lesioning) is the surgical ablation by various methods of brain tissue to treat neurological or psychological disorders.
The lesions it causes are irreversible. There are some target nuclei for ablative surgery and deep brain stimulation. People can die from giving up the fight. People can die simply because they've given up, life has beaten them and they feel defeat is inescapable, according to new research.
The study, by Dr John Leach, a senior research fellow at the University of Portsmouth, is the first to describe the clinical markers for 'give-up-itis', a term used to describe what is known medically as psychogenic death. Baby boomers show concerning decline in cognitive functioning. In a reversal of trends, American baby boomers scored lower on a test of cognitive functioning than did members of previous generations, according to a new nationwide study.
Findings showed that average cognition scores of adults aged 50 and older increased from generation to generation, beginning with the greatest generation (born 1890-1923) and peaking among war babies (born 1942-1947). Scores began to decline in the early baby boomers (born 1948-1953) and decreased further in the mid baby boomers (born 1954-1959). While the prevalence of dementia has declined recently in the United States, these results suggest those trends may reverse in the coming decades, according to study author Hui Zheng, professor of sociology at The Ohio State University. Locomotion and eating behavior changes in Yucatan minipigs after unilateral radio-induced ablation of the caudate nucleus. 1.Grahn, J.
A., Parkinson, J. A. & Owen, A. M. State Variation in Increased ADHD Prevalence: Links to NCLB School Accountability and State Medication Laws. Mindfulness Meditation and Relaxation Response Have Different Effects on Brain Function. Summary: A new study reports relaxation exercises strengthens coupling between brain areas associated with deliberate control, while mindfulness strengthens coupling between areas associated with sensory awareness and perception.
Source: Mass General. A variety of meditation-based programs have been developed in recent years to reduce stress and medical symptoms and to promote wellness. One lingering question is to what extent these programs are similar or different. Endogenous retrovirus. Dendrogram of various classes of endogenous retroviruses Endogenous retroviruses (ERVs) are endogenous viral elements in the genome that closely resemble and can be derived from retroviruses.
They are abundant in the genomes of jawed vertebrates, and they comprise up to 5–8% of the human genome (lower estimates of ~1%). ERVs are a subclass of a type of gene called a transposon, which can be packaged and moved within the genome to serve a vital role in gene expression and in regulation. They are distinguished as retrotransposons, which are Class I elements. Researchers have suggested that retroviruses evolved from a type of transposable gene called a retrotransposon, which includes ERVs; these genes can mutate and instead of moving to another location in the genome they can become exogenous or pathogenic.
Formation The general retrovirus genome consists of three genes vital for the invasion, replication, escape, and spreading of its viral genome. Role in disease Goldberg JCSP 2011. Whole-Brain Vasculature Reconstruction at the Single Capillary Level. Animal models Four months old male mice from the C57 line were used for blood vessels tomographies and for two-photon comparison between Gel-BSA-FITC and lectin-FITC stained blood vessels.
For neuronal and blood vessels imaging of the same brain, a two-months old transgenic (Thy1-GFP-M line) male mouse expressing the Green Fluorescent Protein (GFP) in sparse pyramidal neurons was used38. All experimental protocols involving animals were designed in accordance with the laws of the Italian Ministry of Health. All experimental protocols were approved by the Italian Ministry of Health. Hormones Stress and the Brain.
Paralyzed man regains use of arms and hands after experimental stem cell therapy at Keck Hospital of USC. Why Didn’t She Get Alzheimer’s? The Answer Could Hold a Key to Fighting the Disease. “When you have delayed onset of Alzheimer’s by three decades, you say wow,” said Dr.
Bu, chairman of the neuroscience department at the Mayo Clinic in Jacksonville, Fla., who was not involved in the study. He said the research suggests that instead of drugs attacking amyloid or tau, which have failed in many clinical trials, a medication or gene therapy targeting APOE could be promising. Dr. Reiman, who led another newly published study showing that APOE has a bigger effect on a person’s risk of getting Alzheimer’s than previously thought, said potential treatments could try to reduce or even silence APOE activity in the brain.
People born without APOE appear to have no cognitive problems, but they do have very high cholesterol that requires treatment. Dr. Dr. Untitled. Sex cells evolved to pass on quality mitochondria. One of a series of ova made in a spell of reproductive mitochondrial interest.
The ovum about to ovulate has differentiated from the rest of the surrounding tissue and is getting ready to leave the ovary. Its mitochondria are organized mainly around the nucleus. The cell is full of potential and force. A new brain mapping technique reveals circuitry of Parkinson’s disease tremors. Image Credit: Flickr/amy leonard If a piece of electronics isn’t working, troubleshooting the problem often involves probing the flow of electricity through the various components of the circuit to locate any faulty parts.
Stanford bioengineer and neuroscientist Jin Hyung Lee, who studies Parkinson’s disease, has adapted that idea to diseases of the brain, creating a new way to turn on specific types of neurons in order to observe how this affects the whole brain. Deep Brain Stimulation off vs on. DBS electrically stimulates the brain to reduce effects of diseases such as depression and Par.
The Cure For Fear. Klaver found it difficult to talk about her anxiety, even with her husband. Thinking back to the robbery left her feeling even more isolated and vulnerable. A comprehensive review of psychodynamic treatments for eating disorders. 2. Treasure J, Claudino AM, Zucker N (2010) Eating disorders. Lancet 375:583–593. doi:10.1016/S0140-6736(09)61748-7 3. Fassino S, Abbate-Daga G (2013) Resistance to treatment in eating disorders: a critical challenge. Violent video games reduce brain response to violence, aggressive behavior. Scientists have known for years that playing violent video games causes players to become more aggressive. The findings of a new University of Missouri (MU) study provide one explanation for why this occurs: the brains of violent video game players become less responsive to violence, and this diminished brain response predicts an increase in aggression. "Many researchers have believed that becoming desensitized to violence leads to increased human aggression.
Until our study, however, this causal association had never been demonstrated experimentally," said Bruce Bartholow, associate professor of psychology in the MU College of Arts and Science. During the study, 70 young adult participants were randomly assigned to play either a nonviolent or a violent video game for 25 minutes. Johns Hopkins Neurology and Neurosurgery.
The Prevalence Of Personality Disorders In The United States. An estimated 30.8 million American adults (14.8 percent) meet standard diagnostic criteria for at least one personality disorder as defined in the American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders—Fourth Edition (DSM-IV), according to the results of the 2001-2002 National Epidemiologic Survey on Alcohol and Related Conditions (NESARC) reported in the current issue of the Journal of Clinical Psychiatry [Volume 65:948-958]. Conducted by the National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, the NESARC is a representative survey of the U.S. civilian noninstitutionalized population aged 18 years and older. More than 43,000 American adults participated in the survey. The researchers found that risk of having avoidant, dependent, and paranoid personality disorders is greater for females than males, whereas risk of having antisocial personality disorder is greater for males than females.
Researchers reformulate the model of mitochondrial function. Deep Brain Stimulation.