Neuroscience News and Research

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p11 gene may play a key role in depression

For the more than 18 million Americans who suffer from depressive illnesses, the best pharmacological treatments are those that increase levels of serotonin, the brain chemical that regulates mood, sleep and memory.

5 Jan 2006

Brain cell activity influences formation of brain plaque ingredient

Increased communication between brain cells increases levels of amyloid beta, the key ingredient in Alzheimer's brain plaques, scientists at Washington University School of Medicine in St. Louis have found.

22 Dec 2005

Cocaine abuse may increase risk of Parkinson's disease

Adults who abuse cocaine might increase their risk of developing Parkinson's disease (PD), and pregnant women who abuse cocaine could increase the risk of their children developing PD later in life, according to results of laboratory studies performed by investigators at St. Jude Children's Research Hospital.

13 Dec 2005

Transport mechanisms for serotonin

Researchers at The Forsyth Institute have discovered that the transport mechanisms for serotonin - the chemical substance involved in transmitting signals between neurons, and which has a role in anxiety and mood disorders - play a key role in determining where organs are positioned in the body during embryonic development.

7 Dec 2005

Now we know - love is the drug you can't forget!

According to researchers at Florida State University who were examining the nature of love it may really, as the poets say, be better to have loved and lost than never to have loved at all.

6 Dec 2005

Mirror neurons in autistic children abnormal

Researchers have found, through the use of functional MRI scans that looked at the brain, that there is an abnormal activity in the some of the neurons in the brains of autistic children.

5 Dec 2005

Caffeine and alcohol addiction similar

According to a new study caffeine loving women with a family history of alcohol abuse will have a hard time kicking the coffee habit when they are pregnant.

5 Dec 2005

Brain memory modifies wiring during the female menstrual cycle

Researchers at Northwestern University and Columbia University have found that "wiring" in female rat brain memory area expands and retracts in relation to the amount of estrogen present during the estrous/menstrual cycle.

5 Dec 2005

Cerebrospinal fluid analysis combined with brain scan predicts Alzheimer's

A combination of brain scanning with a new imaging agent and cerebrospinal fluid (CSF) analysis has left neuroscientists encouraged that they may finally be moving toward techniques for diagnosing Alzheimer's disease before its clinical symptoms become apparent.

5 Dec 2005

The earlier cochlear implants considered, the better

New research at Johns Hopkins has clearly demonstrated the ability of cochlear implants in very young animals to forge normal nerve fibers that transmit sound and to restore hearing by reversing or preventing damage to the brain's auditory system.

5 Dec 2005

Genetics play a part in the inability to stop caffeine use

A study led by Johns Hopkins investigators has shown that women with a serious caffeine habit and a family history of alcohol abuse are more likely to ignore advice to stop using caffeine during pregnancy.

5 Dec 2005

Disruption of normal gene interaction linked to schizophrenia

Disruption of the normal interaction between the genes PRODH and COMT contributes directly to major symptoms of schizophrenia by upsetting the balance of the brain chemicals glutamate and dopamine, according to a group of investigators that includes a scientist now at St. Jude Children's Research Hospital.

2 Dec 2005

New technique reveals brain function

Researchers have a relatively good understanding of "where" and "when" the brain edits incoming information; the question is "how" does this happen. It may be that researchers at the University of Bergen have found the answer.

30 Nov 2005

Neural measures reveal individual differences in controlling access to working memory

Even if you could get more RAM for your brain, the extra storage probably wouldn't make it easier for you to find where you left your car keys.

28 Nov 2005

Orbitofrontal thickness, retention of fear extinction, and extraversion

The relationship between the size of a brain structure and the ability to recover from traumatic experiences also may influence overall personality type, according to a study from Massachusetts General Hospital (MGH) researchers.

28 Nov 2005

MGH study finds first function for, promising flexibility in adult-born nerve cells

New brain cells that develop in the olfactory system of adult mice appear to play a role in the brain different from that of older neurons.

28 Nov 2005

Changes in our early sensory experiences resulting from disease or environmental factors may shape our sensory perceptions

Our brain's ability to combine sensory information from a single event - such as seeing an ambulance and hearing its siren - has been shown to speed our reactions, help us identify objects and heighten our awareness.

21 Nov 2005

Music training may change the brain

New research shows that the special training of music conductors seems to enhance the way their senses work together - enabling them to quickly tell who played a wrong note, for example. Scientists hope the research will lead to new discoveries about how music training may change the brain.

21 Nov 2005

Seasonal depression affects hamsters

A new study suggests that hamsters may suffer from symptoms of anxiety and depression during the dark days of winter, just as some humans do.

21 Nov 2005

Women more sensitive to chronic stress than men

"It's generally understood that females respond more strongly to acute (immediate, short-term) stress than males," said Helmer Figueiredo, PhD, of UC's department of psychiatry. "Our research shows that this may also be the case in more clinically relevant chronic-stress conditions."

20 Nov 2005