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Hyperactivity in Brain May Explain Multiple Symptoms of Depression

Published: February 28, 2012.
Released by University of California - Los Angeles  

Most of us know what it means when it's said that someone is depressed. But commonly, true clinical depression brings with it a number of other symptoms. These can include anxiety, poor attention and concentration, memory issues, and sleep disturbances.

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More news from University of California - Los Angeles

Quantifying the Impact of Climate on Ecosystems Worldwide
An international research team led by UCLA life scientists has, for the first time, quantified the direct influence of climate on the growth of ecosystems around the globe. The paper also restores scientific consensus to the fact that record-breaking temperatures and droughts directly affect ecosystems -- which was called into question by a 2014 University of Arizona paper in the journal Nature.

Predictive Policing Substantially Reduces Crime in Los Angeles During Months-long Test
A new study by a UCLA-led team of scholars and law enforcement officials suggests the answer is yes. A mathematical model they devised to guide where the Los Angeles Police Department should deploy officers, led to substantially lower crime rates during a recent 21-month period.

A 'Black'-sounding Name Makes People Imagine a Larger, More Dangerous Person
In a study exploring racial bias and how people use their mind's-eye image of an imagined person's size to represent someone as either threatening or high-status, UCLA researchers found that people envisioned men with stereotypically black names as bigger and more violent.

UCLA Physicists Determine 3-D Positions of Individual Atoms for the First Time
Atoms are the building blocks of all matter on Earth, and the patterns in which they are arranged dictate how strong, conductive or flexible a material will be. Now, scientists at UCLA have used a powerful microscope to image the three-dimensional positions of individual atoms to a precision of 19 trillionths of a meter, which is several times smaller than a hydrogen atom.

Keeping Gut Bacteria in Balance Could Help Delay Age-related Diseases, UCLA Study Finds
Why do some people remain healthy into their 80s and beyond, while others age faster and suffer serious diseases decades earlier? New research led by UCLA life scientists may produce a new way to answer that question -- and an approach that could help delay declines in health. Specifically, the study suggests that analyzing intestinal bacteria could be a promising way to predict health outcomes as we age.

Completely Paralyzed Man Voluntarily Moves His Legs, UCLA Scientists Report
A 39-year-old man who had had been completely paralyzed for four years was able to voluntarily control his leg muscles and take thousands of steps in a "robotic exoskeleton" device during five days of training -- and for two weeks afterward -- a team of UCLA scientists reports this week. This is the first time that a person with chronic, complete paralysis has regained enough voluntary control to actively work with a robotic device designed to enhance mobility.

Jupiter-like Planet Discovered Outside Our Solar System
A planet 100 light-years away that resembles a young Jupiter has been discovered by an international team of astronomers that includes six UCLA scientists. The discovery is reported Aug. 13 in the online edition of the journal Science.

Kids, Teens Win When Mental Health Providers Team with Pediatricians, Family Doctors
For the past decade, cutting-edge health care providers and researchers have increasingly pushed to integrate care for mental health and substance use problems within primary medical care for children and adolescents. Their hope is that children and teens who suffer from mental and behavioral disorders would fare better if their pediatricians or family doctors took an active role in linking them with mental health care, particularly when these doctors team up with mental health clinicians to help meet the needs of their young…

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Do You Obsess over Your Appearance? Your Brain Might Be Wired Abnormally
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Take a Trip Through the Brain

Daydreaming Simulated by Computer Model
Study Reveals Internet-style 'Local Area Networks' in Cerebral Cortex of Rats
Researchers sketching out a wiring diagram for rat brains -- a field known as "connectomics" -- have discovered that …

Making Your Brain Social
Scientists Use 'Optogenetics' to Control Reward-seeking Behavior
(Embargoed) CHAPEL HILL, N.C. – Using a combination of genetic engineering and laser technology, researchers at the University of …
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