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Abnormal visual processing and circuitry in the brain impacts fixational saccades

Little is known about oculomotor function in amblyopia, or "lazy eye," despite the special role of eye movements in vision. A group of scientists has discovered that abnormal visual processing and circuitry in the brain have an impact on fixational saccades (FSs), involuntary eye movements that occur during fixation and are important for the maintenance of vision.

17 Oct 2012

Extradural brain stimulation safe and effective for patients with Parkinson's

Electrical stimulation using extradural electrodes—placed underneath the skull but not implanted in the brain—is a safe approach with meaningful benefits for patients with Parkinson's disease, reports the October issue of Neurosurgery, official journal of the Congress of Neurological Surgeons.

17 Oct 2012

Sustained attention deficits in bipolar patients, relatives

Patients with bipolar disorder and their first-degree relatives exhibit deficits in sustained attention, study results show.

16 Oct 2012

New findings on depression, decision-making and cognition in the teen brain

The brain's "reward system," those brain circuits and structures that mediate the experience and pursuit of pleasure, figured prominently in several studies.

16 Oct 2012

New research on how the brain develops during transition period from childhood to adulthood

Scientists presented new research today on how the brain develops during the dynamic and vulnerable transition period from childhood to adulthood. The findings underscore the uniqueness of adolescence, revealing factors that may influence depression, decision-making, learning, and social relationships.

15 Oct 2012

Embryonic neuron transplants could effectively treat brain diseases

The unexpected survival of embryonic neurons transplanted into the brains of newborn mice in a series of experiments at the University of California, San Francisco (UCSF) raises hope for the possibility of using neuronal transplantation to treat diseases like Alzheimer's, epilepsy, Huntington's, Parkinson's and schizophrenia.

15 Oct 2012

Scientists reveal interaction between the auditory cortex and amygdala

In a study published in the Journal of Neuroscience and funded by the Wellcome Trust, Newcastle University scientists reveal the interaction between the region of the brain that processes sound, the auditory cortex, and the amygdala, which is active in the processing of negative emotions when we hear unpleasant sounds.

15 Oct 2012

Pregnancy stress can cut brain benefits of motherhood

A new study in animals shows that chronic stress during pregnancy prevents brain benefits of motherhood, a finding that researchers suggest could increase understanding of postpartum depression.

15 Oct 2012

New insights into how brain responds to extreme stress

Researchers report new insights into how the brain responds to extreme stress, whether from combat, natural disasters, or repeated violent competition. The insights offer hope for detecting and treating several widespread and debilitating neuropsychiatric disorders, and were presented at Neuroscience 2012, the annual meeting of the Society for Neuroscience and the world's largest source of emerging news about brain science and health.

15 Oct 2012

Cigarette smoking may increase risk of age-related cataract

Cigarette smoking is a well-known risk factor for a wide-range of diseases. Now, scientists have evidence that smoking may also increase the risk of age-related cataract, the leading cause of blindness and vision loss in the world.

13 Oct 2012

Perception test could predict mild cognitive impairment

Psychologists at the University of Toronto and the Georgia Institute of Technology - commonly known as Georgia Tech - have shown that an individual's inability to recognize once-familiar faces and objects may have as much to do with difficulty perceiving their distinct features as it does with the capacity to recall from memory.

12 Oct 2012

Three WSU studies could result in new treatments for epilepsy, behavioral disorders

Three studies conducted as part of Wayne State University's Systems Biology of Epilepsy Project (SBEP) could result in new types of treatment for the disease and, as a bonus, for behavioral disorders as well.

12 Oct 2012

Study compares gene expression levels in two key hippocampal regions affected by Alzheimer's

Researchers from the Computational Intelligence Group based at the Universidad Politécnica de Madrid's Facultad de Informática have used machine learning and data mining techniques to compare gene expresssion levels in Alzheimer's disease (AD) patients in two key regions of the hippocampus: the dentate gyrus, where the disease appears to have little or no effect, and the entorhinal cortex, where Alzheimer's disease produces major neuronal damage.

10 Oct 2012

Study provides direct evidence for persistent activity in medial entorhinal cortex layer neurons

UCLA researchers have for the first time measured the activity of a brain region known to be involved in learning, memory and Alzheimer's disease during sleep. They discovered that this part of the brain behaves as if it's remembering something, even under anesthesia, a finding that counters conventional theories about memory consolidation during sleep.

8 Oct 2012

Researchers perfect map of vision in the brain based upon brain structure

Nearly 100 years after a British neurologist first mapped the blind spots caused by missile wounds to the brains of soldiers, Perelman School of Medicine researchers at the University of Pennsylvania have perfected his map using modern-day technology. Their results create a map of vision in the brain based upon an individual's brain structure, even for people who cannot see.

6 Oct 2012

Social factors influence perceptual processing

Hate the Lakers? Do the Celtics make you want to hurl? Whether you like someone can affect how your brain processes their actions, according to new research from the Brain and Creativity Institute at USC.

6 Oct 2012

BUSM leads genome-wide evaluation of genetic variants associated with Parkinson's disease

Boston University School of Medicine investigators have led the first genome-wide evaluation of genetic variants associated with Parkinson's disease (PD). The study, which is published online in PLOS ONE, points to the involvement of specific genes and alterations in their expression as influencing the risk for developing PD.

6 Oct 2012

Researchers discover brain mechanism responsible for sensation of nausea

Nausea is a common and distressing side effect of many drugs and treatments. Unlike vomiting, nausea is not well understood, but new research by University of Guelph scientists may soon change that.

6 Oct 2012

GRID1 thalamo-cortical gene variations absent in schizophrenia

Genetic variation in the glutamate receptor delta 1 gene affects gray matter of the anterior thalamus and left lateral prefrontal cortex in healthy individuals but not among patients with schizophrenia, suggest findings published in the Journal of Psychiatric Research.

5 Oct 2012

Cognitively-based compassion training can boost empathic accuracy

A compassion-based meditation program can significantly improve a person's ability to read the facial expressions of others, finds a study published by Social Cognitive and Affective Neuroscience.

5 Oct 2012