Weekly Neuroscience Update

Researchers have developed a new method of measuring axons using MRI neuroimaging.

People with autism spectrum disorder (ASD) appear to suffer malfunctions in a cell that produces a special coating around nerve fibers that facilitates efficient electrical communication across the brain. 

New findings about dopaminergic neurons in the striatum could have implications for treating Parkinson’s disease and Tourette syndrome.

Researchers have found that it is possible to assess a person’s ability to feel empathy by studying their brain activity while they are resting rather than while they are engaged in specific tasks.

Boys who exhibit inattention-hyperactivity by age 10 have an increased risk for traumatic brain injury later in life.

Combining fMRI and behavioral data, researchers examined gender identity in cisgender and transgender individuals using a new machine learning algorithm. The AI identified at least nine dimensions of brain-gender variation.

New research has provided insights into why people often make unrealistic plans that are doomed to fail.

Finally this week, a new study has found that dopamine — a neurotransmitter that plays an important role in our cognitive, emotional, and behavioral functioning — plays a direct role in the reward experience induced by music. The findings have been published in the Proceedings of the National Academy of Sciences.

Weekly Neuroscience Update

Is music really a “universal language”? Two articles in Science support the idea that music all around the globe shares important commonalities, despite many differences.

Researchers studying six adults who had one of their brain hemispheres removed during childhood to reduce epileptic seizures found that the remaining half of the brain formed unusually strong connections between different functional brain networks, which potentially help the body to function as if the brain were intact. 

Excessive exposure to certain antibiotics can predispose a person to Parkinson’s disease, with a delay of onset of up to 15 years.

Findings debunk the common theory that attention is the only cognitive function affected by sleep deprivation. Lack of sleep also hinders a person’s ability to complete activities that require following multiple steps.

A new study reveals how the insular cortex helps assess and predict physiological states of the body. The findings shed light on the neural basis for interoception.

Finally this week, neuroscientists have discovered how the listening brain scans speech to break it down into syllables. The findings provide for the first time a neural basis for the fundamental atoms of language and insights into our perception of the rhythmic poetry of speech. 

Weekly Neuroscience Update

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Simultaneous activity of three cognitive systems found in the study NeuroscienceNews.com image is credited to Vadim Axelrod, Bar-Ilan University.

Internal experiences, such as recalling personal memories, are associated with the simultaneous activity of at least three different cognitive systems, a new study reports.

Neuroscientists have shown how the human brain can predict what our eyes will see next, using functional magnetic resonance imaging (fMRI).

A new study sheds light on ADHD, reporting teens with the disorder fit into one of three specific subgroups with distinct brain impairments and no common abnormalities between them.

Musical training may enhance the ability to process speech in noisy settings, a new study reveals.

Scientists are examining the feasibility of treating autistic children with neuromodulation after a new study showed social impairments can be corrected by brain stimulation.

The fear of losing control over thoughts and actions can impact OCD behaviors and other anxiety disorders, researchers report.

Recent functional studies suggest that noise sensitivity, a trait describing attitudes towards noise and predicting noise annoyance, is associated with altered processing in the central auditory system.

Finally this week, a new study reveals the frontal regions of the brain play a vital role in assessing and interpreting emotions communicated orally.

Weekly Neuroscience Update

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A study published in Frontiers in Neuroscience takes a look inside the brains of professional comedians and compares them with less humorous humans. They attempt to home in on the seat of creative humour and ask what it can tell us about creativity.

A new study reports brain cells may preferentially activate a copy of one parent’s genes over the other in offspring.

Music, specifically infant directed song, could have evolved as a means to allow parents to let their children know their needs are being met, while freeing them up to perform other essential tasks, a new study theorizes.

Researchers report a new neuroimaging device can successfully measure brain synchronization during a conversation.

Specialized nerve cells, known as somatostatin-expressing (Sst) interneurons, in the outer part of the mammalian brain (or cerebral cortex) — play a key role in controlling how information flows in the brain when it is awake and alert. This is the finding of a study published online in Science March 2 by a team of neuroscientists at NYU Langone Medical Center and its Neuroscience Institute.

Amygdala reactivity may help predict who will have post-traumatic stress disorder symptoms in the year following a trauma, a recent study from Emory University  finds.

Recent research published in Frontiers in Public Health shows that the effects of vibrations produced by horses during horse-riding lead to the activation of the sympathetic nervous system, which improves learning in children.

A compound called P7C3 provides both protection for neurons following a stroke and improves physical and cognitive outcomes, a new study reports.

MIT researchers have devised a way to measure dopamine in the brain much more precisely than previously possible, which should allow scientists to gain insight into dopamine’s roles in learning, memory, and emotion.

A new study reports the ability to modulate brain activity when it comes to shutting off processes irrelevant to a task may be compromised in older people.

Concrete links between the symptoms of autism and synaesthesia have been discovered and clarified for the first time, according to new research by psychologists at the University of Sussex.

Researchers have identified a potential mechanism for the development of alcoholism.

Finally this week, researchers have discovered a genetic pathway that could lead to people developing anxiety and panic disorders.

University of Limerick medical graduates conferred

Pictured with Dr. Neasa Starr at UL Medical Graduation

Last Tuesday, 14 June, was an historic day in the life of the University of Limerick Graduate Entry Medical School  (GEMS) in which I am Foundation Head of Teaching and Research in Physiology.

Four years ago on September 10th we welcomed 32 students, from a variety of degree disciplines, to Limerick to study at Ireland’s first graduate entry medical school. Last week those students, who came from backgrounds as diverse as music, engineering, science, and education, were conferred with their Bachelor of Medicine and Bachelor of Surgery degrees.

Last week’s conferring ceremony for students marks a number of firsts – the first medical school to be founded in Ireland in over 150 years, the first graduate entry medical school in Ireland, and the first to integrate problem based learning techniques into its four-year curriculum.

I join with all my colleagues at GEMS in wishing this cohort of new doctors every success in their future careers.