Psychiatry News and Research

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Psychiatry is the treatment, study and prevention of mental disorders.

Neurotransmitter orexin influences reward processing - associated with pleasure and reward pathways in the brain

Researchers at the University of Pennsylvania School of Medicine have discovered that the recently identified neurotransmitter orexin (also known as hypocretin) influences reward processing by activating neurons in the lateral hypothalamus region of the brain.

28 Aug 2005

Parts of the brain used in daydreaming are the same areas that fail in people who have Alzheimer's disease

Researchers who used five different medical imaging techniques to study the brain activity of 764 people, including those with Alzheimer's disease, those on the brink of dementia, and healthy individuals, have found that the areas of the brain that young, healthy people use when daydreaming are the same areas that fail in people who have Alzheimer's disease.

25 Aug 2005

Brain can be tricked into thinking the pain has gone

A new U.S. study has found that it is possible that by just thinking that a medicine will relieve pain is enough to prompt the brain to release its own natural painkillers, and soothe painful sensations.

24 Aug 2005

First direct evidence that endorphins play a role in the phenomenon known as the placebo effect

Just thinking that a medicine will relieve pain is enough to prompt the brain to release its own natural painkillers, and soothe painful sensations, a new University of Michigan study finds.

23 Aug 2005

Anxiety disorders can compromise success of alcohol-dependence treatment

Individuals who have an anxiety disorder when starting treatment for alcohol dependence have a significantly greater risk for relapse to drinking within four months, according to researchers at the University of Minnesota.

18 Aug 2005

Family-based treatments are effective for substance abuse

Family-based treatments are effective for substance abuse and conduct disorders in children and adolescents, according to a new, ten-year research review released this week. The treatment also helps reduce the behavior problems associated with attention deficit hyperactivity disorder (ADHD) and shows promise in treating depression and anxiety.

11 Aug 2005

Endorphin system may hold the key to understanding and treating bulimia nervosa

The role of the brain's opioid receptor system - or endorphin system - may hold the key to understanding and treating bulimia nervosa, according to research reported in the Society of Nuclear Medicine's August issue of the Journal of Nuclear Medicine.

9 Aug 2005

Cognitive therapy can have a preventive effect for depression

Three years ago, Terry Tuton was laid off from his job as project manager at a large technology firm, leaving him limited insurance coverage at a time when he was suffering from overpowering feelings of hopelessness and depression - and not for the first time in his life.

4 Aug 2005

New hope for schizophrenia sufferers

Key research from the University of New South Wales (UNSW) could lead to the first early diagnostic tool for schizophrenia and bipolar disorder.

2 Aug 2005

Smoking during pregnancy linked to childrens' anti-social behaviour

It has been well documented that smoking during pregnancy can harm the developing baby, but now, according to researchers, women who smoke during pregnancy may increase the risk of their child displaying anti-social behaviour.

2 Aug 2005

More than one fourth of individuals with severe mental illness (SMI) were victims of violent crime in the past year

...eleven times the rate in the general population, according to a study in the August issue of Archives of General Psychiatry.

1 Aug 2005

Nationwide survey reports a high rate of concern about body image in both boys and girls

A nationwide survey of more than 10,000 adolescents, published in the August issue of Pediatrics, reports a high rate of concern about body image in both boys and girls, and finds that adolescents with such concerns are much more likely to use hormones and dietary supplements to enhance their physique.

1 Aug 2005

Riluzole appears to have significant antiobsessional, antidepressant, and antianxiety properties

A medication used to ease symptoms of amyotrophic lateral sclerosis, or Lou Gehrig's disease, also is helpful in treating people with treatment-resistant obsessive-compulsive disorder (OCD), according to a pilot study at Yale School of Medicine.

31 Jul 2005

Fructose sweetning could be even worse than using other sweeteners

A University of Cincinnati (UC) study provides new evidence that drinking large amounts of beverages containing fructose adds body fat, and might explain why sweetening with fructose could be even worse than using other sweeteners.

31 Jul 2005

Habit memory - humans clearly can acquire and retain knowledge through repetition

Humans have a "robust" capacity to learn and retain new information unconsciously, retaining so-called habit memory even when conscious or declarative learning is absent, memory experts at the University of California, San Diego School of Medicine and the San Diego Veterans Affairs Health System report in the July 28, 2005 issue of Nature.

27 Jul 2005

Methamphetamine users show symptoms similar to brain injury patients

Because today's methamphetamine is stronger, more potent and wreaks greater havoc on the brain, chronic users exhibit symptoms similar to patients with traumatic brain injury (TBI), according to the Brain Injury Association of Arizona (BIAAZ).

26 Jul 2005

Plaques in the brain more likely to be expressed as dementia in women than in men

Researchers from the Rush Alzheimer's Disease Center found that plaques and tangles in the brain, the changes seen in people with Alzheimer's disease (AD), are more likely to be expressed as dementia in women than in men.

25 Jul 2005

Study offers a unique perspective on the beginnings of the alcohol experience and usage patterns of 12-year-olds

Clues looking into the root causes of alcoholism are emerging from new findings that center on the genetic patterns of young drinkers, with particular focus on why adolescents are more likely to drink large quantities of alcohol even if they need more alcohol to get the effects they desire.

25 Jul 2005

Wife determines husband's marijuana use

While it's the husband among newlywed couples who has more influence on whether the couple engages in heavy drinking, it's the wife who appears to be in the driver's seat when it comes to determining her husband's marijuana use, according to researchers at the University at Buffalo's Research Institute on Addictions (RIA).

20 Jul 2005

Research examines the effect of visual impairment on Alzheimer's disease patients in nursing homes

One in three nursing home residents who have Alzheimer’s disease are not getting their vision corrected so they can see clearly, according to new Saint Louis University research in the July issue of the Journal of the American Medical Directors Association.