Tag: Neuroscience

Scientists learn more about how gene linked to autism affects brain: Modulating CHD8 might help some people with complex condition

New preclinical research shows a gene already linked to a subset of people with autism spectrum disorder is critical to healthy neuronal connections in the developing brain, and its loss can harm those connections to help fuel the complex developmental condition. Scientists at Cincinnati Children’s Hospital Medical Center report in Developmental Cell their data clarify

Adolescent binge drinking disrupts mouse memory in adulthood: Study could help scientists better understand development of alcohol use disorders in adults

Excessive drinking during adolescence may interfere with the activity of brain cells needed for sustaining short term memory, according to new research in adolescent male mice published in JNeurosci. The study could help scientists better understand the development of alcohol use disorders in adults. The prefrontal cortex (PFC) and the behavior-management abilities it supports —

Waves move across the human brain to support memory: Columbia Engineers discover a new fundamental feature of brain oscillations: These traveling waves reflect patterns of neuronal activity that move across the cortex and are important for memory and cognition

The coordination of neural activity across widespread brain networks is essential for human cognition. Researchers have long assumed that oscillations in the brain, commonly measured for research purposes, brain-computer interfacing, and clinical tests, were stationary signals that occurred independently at separate brain regions. Biomedical engineers at Columbia Engineering have discovered a new fundamental feature of

It’s about time: Immediate rewards boost workplace motivation

Struggling to finish that report for your boss? One way to increase your interest in a task is to add immediate rewards, rather than wait until the end to reward yourself, according to new Cornell research published in the Journal of Personality and Social Psychology titled “It’s About Time: Earlier Rewards Increase Intrinsic Motivation.” Kaitlin

What doctors wear really does matter, study finds: Survey of more than 4,000 patients isn’t just about fashion — patient satisfaction may be affected

Physicians may want to dig a little deeper into their closets, or grab their white coats on the way out of the operating room, if they want patients to view them favorably, according to the largest-ever study of patient preferences for doctors’ attire. In fact, what medical doctors wear may matter more than most doctors

Gene linked to intellectual ability affects memory replay in mice

Researchers at the RIKEN Center for Brain Science in Japan have discovered that a gene associated with human intellectual ability is necessary for normal memory formation in mice. Published in Nature Neuroscience, the study shows that mice with only one copy of the gene replay shorter fragments of their previous experiences during periods of rest,

E. coli infection induces delirium in aging rats: Research could inform understanding of how immune system activation affects cognitive function in the elderly

Activation of the immune system by an infection may temporarily disrupt formation of long-term memories in healthy, aging rats by reducing levels of a protein required for brain cells to make new connections, suggests new research published in eNeuro. Cognitive decline in old age is thought to be gradual, as in Alzheimer’s disease. However, an

How humans repress prejudices: Even people who would describe themselves as liberal and open-minded might not be free of unconscious racism

Bochum-based philosopher Dr Beate Krickel has used psychoanalysis to investigate why people are often not aware of their prejudices. In her accounts, she has been elaborating how prejudices can become unconscious. As researcher at the Institute of Philosophy II at Ruhr-Universität Bochum, she outlines her theory in the journal Philosophical Psychology from May 15, 2018.

Magnetic stimulation dampens brain response to drug cues in addiction

In a study investigating the use of transcranial magnetic stimulation (TMS) for drug addiction, researchers at Medical University of South Carolina are the first to demonstrate that the noninvasive brain stimulation technique can dampen brain activity in response to drug cues in chronic alcohol users and chronic cocaine users. The findings are published in Biological

Scientists uncover brain circuits behind putting up a fight or freezing in place: Study may provide clues to disorders including anxiety and phobias

In a study of mice, National Institutes of Health-funded researchers describe a new circuit involved in fine-tuning the brain’s decision either to hide or confront threats. The study, published in Nature, was partially funded by the NIH’s Brain Research through Advancing Innovative Neurotechnologies (BRAIN) Initiative. “Being able to manipulate specific circuits can uncover surprising relationships

Discovery of differences in the brains of rats classified as workers vs. slackers: Discoveries reveal the brain mechanisms involved in decision-making

A team of researchers led by Dr. Catharine Winstanley at the University of British Columbia have uncovered a network of regions in the brain that are involved in determining the choice of working harder to get a bigger reward, or putting in a lesser effort and receiving a smaller reward. Understanding how the brain makes

Putting distinct memories of similar events in their place

Neuroscientists have found new evidence on how distinct memories of similar events are represented in the brain. Its findings, which appear in the journal Neuron, correct a previous misconception of how such memories are stored in the hippocampus — a part of the brain crucial for memory and understanding space. “Previous research suggested that brain

Neuro filter sharpens visual processing: Findings provide a more comprehensive account of how we ‘see’ the world

Blurry and clear versions of an image are represented similarly in the brain, according to a neuroimaging study published in eNeuro. The research shows how the visual system fills in missing information to maintain perception when visibility is low. Vision arises from a “bottom-up” process that transduces light into neural signals and a “top-down” process

Dan­cer’s brains re­act quickly to changes in mu­sic: Dancers’ brain functions also display brain frequencies linked to emotion and memory processes

Neuroscience has studied music for decades, and it has been found to activate both the cortical and deeper brain areas. Neuroscience of dance, instead, is a young but quickly growing field. In her doctoral dissertation, Master of Science Hanna Poikonen developed methods for understanding the processes that dance generates in the cortex at the Cognitive

Synaptic communication controls neuronal migration: New mechanism controls neuronal migration during brain development

The cerebral neocortex is responsible for higher brain functions, such as conscious thought and language, in humans. In the neocortex, neurons are precisely arranged in an ordered 6-layered structure. This neocortical structure is formed by the sequential generation of billions of neurons and their migration toward the brain surface in the fetal period. “Subplate neurons”

Electrode shape improves neurostimulation for small targets

A cross-like shape helps the electrodes of implantable neurostimulation devices to deliver more charge to specific areas of the nervous system, possibly prolonging device life span, says research published in March in Scientific Reports. The shape, called “fractal,” would be particularly useful for stimulating smaller areas, such as deep brain structures or the retina, since