Brain

• There are known risks for and protective factors against the development of alcohol use disorders (AUDs).
• A new study has found that striatal dopamine responses to alcohol ingestion may serve as a neurobiological marker of vulnerability to AUDs.
• Specifically, when given alcohol, those at high risk showed an increase in brain dopamine and those at low risk actually showed a decrease in brain dopamine.

Research from McGill University suggests that people who are vulnerable to developing alcoholism exhibit a distinctive brain response when drinking alcohol, according to a new study by Prof. Marco Leyton, of McGill University's Department of Psychiatry. Compared to people at low risk for alcohol-use problems, those at high risk showed a greater dopamine response in a brain pathway that increases desire for rewards.

A new study is revealing the multiple health concerns faced by an estimated 3,000 tenants in single-room occupancy (SRO) hotels in Vancouver's Downtown Eastside (DTES).

The results of the study aim to better inform the provision of health care and housing among an often-overlooked segment of the population.

Due to their affordability, SROs are often the only alternative to homelessness for low-income individuals in Vancouver and other major cities. Some SROs are substandard and many tenants suffer from substance dependence, mental illness and infectious diseases.

Chronic cocaine use may reduce the body's ability to store fat, new research from the University of Cambridge suggests.

The scientists found that cocaine use may cause profound metabolic changes which can result in dramatic weight gain during recovery, a distressing phenomenon that can lead to relapse. It was previously widely believed that cocaine suppresses the appetite and that the problematic weight gain during rehabilitation was a result of patients substituting food for drugs.

Boston, Mass., -- A mother's perceived social status predicts her child's brain development and stress indicators, finds a study at Boston Children's Hospital. While previous studies going back to the 1950s have linked objective socioeconomic factors -- such as parental income or education -- to child health, achievement and brain function, the new study is the first to link brain function to maternal self-perception.

Results from a longitudinal study show that children who exhibit lower conscientiousness (e.g., irresponsible, careless, not persevering) could experience worse overall health, including greater obesity, as adults. The Oregon Research Institute (ORI) study examines the relationship between childhood personality and adult health and shows a strong association between childhood conscientiousness (organized, dependable, self-disciplined) and health status in adulthood.

Opening our eyes and seeing the world before us, full of objects, is a simple action we may take for granted. Yet our brain is constantly carrying out a huge analysis only to let us see a flower, a pen, the face of our children. Where exactly in our brain does shape become meaning?

3-N-butylphthalide, a green botanical medicine, is a successfully synthesized and stable chemical drug used for the treatment of ischemic stroke that has independent intellectual property rights in China. The first L-isomer, originally extracted from celery seed, was artificially synthesized from racemic acid, also known as butylphthalide. L-3-n-butylphthalide has been shown to reduce β-amylase-induced neuronal apoptosis and improve cognitive function in Alzheimer's disease animal models.

The middle cerebral artery territory comprises the corticospinal tract, which is responsible for fine motor activity of the hands, and the corticoreticulospinal tract, which is involved in postural control and locomotor function, and therefore, motor weakness is one of the most disabling sequelae of a middle cerebral artery infarct. However, little is known about motor outcomes in patients with a complete middle cerebral artery territory infarct. Prof.

In multiple sclerosis, gray matter atrophy is extensive, and cognitive deficits and mood disorders are frequently encountered. It has been conjectured that focal atrophy is associated with emotional decline. However, conventional MRI has revealed that the pathological characteristics cannot fully account for the mood disorders. Dr.

Results from a longitudinal study show that children who exhibit lower conscientiousness (e.g., irresponsible, careless, not persevering) could experience worse overall health, including greater obesity, as adults. The Oregon Research Institute (ORI) study examines the relationship between childhood personality and adult health and shows a strong association between childhood conscientiousness (organized, dependable, self-disciplined) and health status in adulthood.

Autism affects different parts of the brain in females with autism than males with autism, a new study reveals. The research is published today in the journal Brain as an open-access article.

CAMBRIDGE, MA -- Are you influenced by the opinions of other people — say, in the comments sections of websites? If your answer is no, here's another question: Are you sure?

A new study co-authored by an MIT professor suggests that many people are, in fact, heavily influenced by the positive opinions other people express online — but are much less swayed by negative opinions posted in the same venues. Certain topics, including politics, see much more of this "herding" effect than others.

Surgery to relieve the damaging pressure caused by hemorrhaging in the brain is a perfect job for a robot.

That is the basic premise of a new image-guided surgical system under development at Vanderbilt University. It employs steerable needles about the size of those used for biopsies to penetrate the brain with minimal damage and suction away the blood clot that has formed.

BUFFALO, N.Y. – Scientists are developing a clearer picture of how visual systems develop in mammals. The findings offer important clues to the origin of retinal disorders later in life.

In research published this week in the Journal of Neuroscience, University at Buffalo scientists and colleagues focused on a particular protein, called a transcription factor, that regulates gene activity necessary for the development of one type of retinal neuron, the horizontal cells.