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neuroimaging

Image shows brain scans of a normal and PTSD brain.

·July 18, 2017·4 min read

Potential New Path For PTSD Treatment

A recent study in PNAS implicates alterations in the brain's glutamate signaling in people with PTSD. Neuroimaging revealed increased levels of mGluR5 in those with post traumatic stress disorder. Researchers report drugs that can reduce mGluR5 function could help reduce fear, stress and other symptoms of PTSD.

Image shows a hyperbaric oxygen chamber.

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·July 17, 2017·4 min read

O2 and Hyperbaric Oxygen Therapy Reverses Brain Damage in Drowned Toddler

Doctors at LSU helped to reverse brain volume loss and restore cognitive function in a two year old girl following an accidental drowning incident. The researchers used hyperbaric oxygen therapy and normobaric oxygen to treat the girl. The treatment could prove to have a profound effect on the recovery of function in other patients who experience neurological damage as a result of drowning, the researchers say.

Image shows brain scans with the occipital cortex highlighted.

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·July 12, 2017·3 min read

Rhythmic Firing of Brain Cells Supports Communication in Brain Network for Language

A new PNAS study reveals the communication between brain areas that specialize in language is supported by the rhythmic synchronization of brain cells. Researchers found different rhythms reflect different directions of information flow.

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·July 11, 2017·5 min read

Visual System Changes That May Signal Parkinson’s Disease

A new study published in Radiology reports people with Parkinson's disease show significant abnormalities within the visual system. Neuroimaging helped researchers identify alterations of optic radiation, optic chiasm volume reduction and a decrease in white matter concentration in Parkinson's patients.

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·July 11, 2017·4 min read

Depression Affects Male and Female Brains Differently

Exposing depressed adolescents to positive and negative words elicited different effects in specific brain regions depending on the sex of the subject, a new Frontiers in Psychiatry study reports.

Image shows the location of the prencueus in the brain.

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·July 10, 2017·4 min read

Bulimic Brains Respond Differently to Food Cues Following Stressful Events

According to a new study published in the Journal of Abnormal Psychology, the brains of women with the eating disorder Bulimia Nervosa respond differently to images of sugary and high-fat foods following a stressful situation than those without the disorder. Brain scans reveal bulimic women have decreased blood flow to the precuneus, an area of the brain associated with self-criticism, when presented with images of food following a stressful math test. The findings provide support to current theories that binge eating may provide an alternative focus to negative self-reflections.

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·July 6, 2017·3 min read

Learning With Music Can Change Brain Structure

Listening to music while learning a new physical skill can help increase connectivity in the white matter tract linking auditory and motor regions of the brain, a new study reports.

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·July 5, 2017·6 min read

Probing Psychopathic Brains

Taking a mobile neuroimaging system on the road to prisons, researchers look at the brain activity of those considered to be psychopaths and discover their brains are wired in a way that leads them to over-value immediate rewards while neglecting future consequences.

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·June 30, 2017·7 min read

Stiff Vessels and Low Blood Flow in the Brain Forewarn of Dementia

Researchers report harmful plaques associated with Alzheimer's disease may build up in the brain as a result of high blood pressure and decreased cerebral blood flow.

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·June 29, 2017·4 min read

Hippocampus Underlies the Link Between Slowed Walking and Mental Decline

A new study reports a connection between slowed walking speed and cognitive decline appears to arise in the right hippocampus. Researchers recommend older people may benefit if their doctors measure their walking speed and check for changes over time, which could be an early indicator of impending cognitive decline.

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·June 28, 2017·5 min read

Why Some With Autism Avoid Eye Contact

A new study sheds light on why some people on the autism spectrum have problems maintaining eye contact. Researchers say that eye avoidance behavior may be triggered by excessive arousal stemming from an over-activation in a specific region of the brain.

Image shows a brain scans with the dlPFC highlighted.

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·June 28, 2017·7 min read

How the Cortex Assigns Credit for Causality

A new study implicates the dorsolateral prefrontal cortex in our ability to assign credit for whatever action leads to a desired outcome. While the study does not rule out the involvement of other brain areas to credit assignment, it does show the dlPFC is a key player in how we assess causality.