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New therapy approach for patients blind on one side

Patients who are blind in one side of their visual field benefit from presentation of sounds on the affected side. After passively hearing sounds for an hour, their visual detection of light stimuli in the blind half of their visual field improved significantly.

31 May 2012

Interim data from UCLA and NeuroSigma’s eTNS Phase I trial on PTSD, MDD

Today, at the 52nd annual New Clinical Drug Evaluation Unit (NCDEU) Conference in Arizona, Ian Cook, M.D., Professor of Psychiatry at the University of California, Los Angeles (UCLA) and a Senior Medical Advisor to NeuroSigma, Inc., presented the results from the first 6-subject cohort of a 10-subject Phase I open-label clinical trial studying the effects of external trigeminal nerve stimulation (eTNS) on Post-Traumatic Stress Disorder (PTSD) and depressive symptoms in Major Depressive Disorder (MDD) as an adjunct to pharmacotherapy.

31 May 2012

UC Davis mathematicians help biologists to understand platelet formation

UC Davis mathematicians have helped biologists figure out why platelets, the cells that form blood clots, are the size and shape that they are. Because platelets are important both for healing wounds and in strokes and other conditions, a better understanding of how they form and behave could have wide implications.

28 May 2012

Brain can rewire even at an advanced age

"This study overturns decades-old beliefs that most of the brain is hard-wired before a critical period that ends when one is a young adult," said MPFI neuroscientist Marcel Oberlaender, PhD, first author on the paper.

25 May 2012

Changes in sensory experience can cause massive rewiring of the brain

Despite a long-held scientific belief that much of the wiring of the brain is fixed by the time of adolescence, a new study shows that changes in sensory experience can cause massive rewiring of the brain, even as one ages. In addition, the study found that this rewiring involves fibers that supply the primary input to the cerebral cortex, the part of the brain that is responsible for sensory perception, motor control and cognition.

25 May 2012

PERK protein necessary to maintain behavioral flexibility

Researchers have identified a protein necessary to maintain behavioral flexibility, which allows us to modify our behaviors to adjust to circumstances that are similar, but not identical, to previous experiences. Their findings, which appear in the journal Cell Reports, may offer new insights into addressing autism and schizophrenia—afflictions marked by impaired behavioral flexibility.

25 May 2012

Georgia researchers create map of the human brain

University of Georgia researchers have developed a map of the human brain that shows great promise as a new guide to the inner workings of the body's most complex and critical organ.

23 May 2012

VEN occurs also in the insula of macaque monkeys

The anterior insular cortex is a small brain region that plays a crucial role in human self-awareness and in related neuropsychiatric disorders. A unique cell type - the von Economo neuron (VEN) - is located there. For a long time, the VEN was assumed to be unique to humans, great apes, whales and elephants.

22 May 2012

Treatment of OSA in children can reverse neuronal brain injury

Treatment of obstructive sleep apnea (OSA) in children normalizes disturbances in the neuronal network responsible for attention and executive function, according to a new study.

21 May 2012

Zebrafish can modify their behaviour in response to varying situations

Scientists at Queen Mary, University of London have shown that zebrafish could be used to study the underlying causes of psychiatric disorders.

18 May 2012

Damage to brain white matter connections may be the cause of Phineas Gage's behavioral changes

Poor Phineas Gage. In 1848, the supervisor for the Rutland and Burlington Railroad in Vermont was using a 13-pound, 3-foot-7-inch rod to pack blasting powder into a rock when he triggered an explosion that drove the rod through his left cheek and out of the top of his head. As reported at the time, the rod was later found, "smeared with blood and brains."

17 May 2012

Study describes new family of six genes that control mitochondrial transport in neurons

A team headed by Eduardo Soriano at the Institute for Research in Biomedicine (IRB Barcelona) has published a study in Nature Communications describing a new family of six genes whose function regulates the movement and position of mitochondria in neurons.

10 May 2012

Non-drug therapy with NeuroStar TMS improves depression symptoms and QOL

New data released today at the annual meeting of the American Psychiatric Association show that patients with unipolar, non-psychotic Major Depressive Disorder (MDD) receiving transcranial magnetic stimulation (TMS) with NeuroStar TMS Therapy achieved significant improvements in both depression symptoms and in quality of life measurements.

9 May 2012

Results reported for clinical trial for the treatment of depression using external trigeminal nerve stimulation

Earlier today, at the American Psychiatric Association Annual Meeting in Philadelphia, Dr. Ian Cook, Principal Investigator and Professor of Psychiatry at UCLA, and a Senior Medical Advisor to NeuroSigma, Inc., presented the results of a Phase Ib open-label clinical trial that studied the effects of eTNS™ on depressive symptoms in Major Depressive Disorder (MDD) as an adjunct to pharmacotherapy. Results from the 17-question Hamilton Depression Rating Scale (HDRS-17), a clinician-rated scale, showed a 50.0% reduction in depression and the Beck Depression Inventory (BDI), a self-reported scale, showed a 58.0% reduction in scores. Both scales achieved statistical significance. In the trial, subjects placed stimulating eTNS™ electrodes on their foreheads for 8 hours each night and their depression was measured every two weeks using recognized standard tests. eTNS was well tolerated and no serious adverse events occurred during the 8-week treatment period.

9 May 2012

eTNS therapy can impact symptoms in pharmacoresistant major depression

9 May 2012

Psychopaths’ brains differ from healthy non-offenders: Study confirms

Approximately half of male prisoners in England and Wales will meet diagnostic criteria for ASPD. The majority of such men are not true psychopaths (ASPD-P). They are characterized by emotional instability, impulsivity and high levels of mood and anxiety disorders. They typically use aggression in a reactive way in response to a perceived threat or sense of frustration.

8 May 2012

DBS may offer hope for patients with mild Alzheimer's

A study on a handful of people with suspected mild Alzheimer's disease (AD) suggests that a device that sends continuous electrical impulses to specific "memory" regions of the brain appears to increase neuronal activity. Results of the study using deep brain stimulation, a therapy already used in some patients with Parkinson's disease and depression, may offer hope for at least some with AD, an intractable disease with no cure.

8 May 2012

Awake mental replay essential for making informed choices

Awake mental replay of past experiences is essential for making informed choices, suggests a study in rats. Without it, the animals- memory-based decision-making faltered, say scientists funded by the National Institutes of Health. The researchers blocked learning from, and acting on, past experience by selectively suppressing replay - encoded as split-second bursts of neuronal activity in the memory hubs of rats performing a maze task.

4 May 2012

Researchers investigate hydrogels' potential in drug delivery

The flexible properties of hydrogels - highly absorbent, gelatinous polymers that shrink and expand depending on environmental conditions such as humidity, pH and temperature - have made them ideal for applications from contact lenses to baby diapers and adhesives.

4 May 2012

Dopamine linked to willingness to work for a monetary reward

A new brain imaging study has shown that an individual’s willingness to work hard to earn money is strongly influenced by the chemistry in three specific areas of the brain. Researchers claim that this could have important implications for the treatment of attention-deficit disorder, depression, schizophrenia and other forms of mental illness characterized by decreased motivation.

3 May 2012