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UrduThe brains of people who reduce their drinking, as well as of people who quit drinking entirely, have greater volume in certain regions than people who drink more heavily, according to a new study of adults treated for alcohol use disorder.
Tag: Brain Structure
Diabetes linked to functional and structural brain changes through MRI
A new study finds that the longer a person has type 2 diabetes, the more likely they may be to experience changes in brain structure. MRI results, researchers say, indicate the negative effects longstanding diabetes may have on brain health outcomes and emphasize the importance of preventing early onset type 2 diabetes.
Discovery of neurons that recognize others
Researchers from the Center for Cognition and Sociality (CCS) within the Institute for Basic Science (IBS) recently announced the discovery of neurons that allow us to recognize others. The research team discovered that the neurons that deal with the information associated with different individuals are located in the CA1 region of the hippocampus.
Recovery From Alcohol Use Disorder: Long-term Abstinence Accompanied by Brain Changes and Emotional Improvements
from alcohol use disorder (AUD) have been clarified in a new study in Alcoholism: Clinical and Experimental Research. AUD recovery was already known to be multidimensional, with behavioral changes – ranging from stopping heavy drinking to complete abstinence – accompanied by partial reversal of alcohol-induced brain damage. While the relationship between early abstinence (the “withdrawal phase”), negative mood, and sex-specific effects of alcohol on the brain’s “reward system” have been well-established, a growing body of evidence is revealing that AUD individuals in long-term abstinence (greater than five years) report higher levels of subjective happiness and emotional well-being, as well as a significantly lower risk of relapse. Yet, the way these long-term behavioral and emotional improvements relate to underlying brain changes, and potentially differ between men and women, remains unknown. To better understand and characterize these aspects of the recovery process, the study’s res
Big brains and white matter: New clues about autism subtypes
Researchers found that a long-accepted theory about brain size in some children with autism may not be true. In a separate study, they linked development of white matter with changes in autism symptom severity.
Mapping Cavefish Brains Leads to Neural Origin of Behavioral Evolution
While studied for nearly a century, little is known about how cavefish brains differ. A study is the first to look inside their brains with millimeter resolution to start to understand how the individual neurons and brain regions that drive complex behaviors, including sleep and feeding have evolved. This work has broad implications for the understanding of how brains evolve in many different animal models and is hoped to be widely used by the scientific community.
Alcohol Use in Early Adolescence may Alter Reward Motivation
The brain responds to rewarding stimuli by increasing the release of a neurotransmitter called dopamine. When we feel motivated, it is because our brain anticipates this dopamine reward.
The transition from early to mid-adolescence is associated with increased reward sensitivity and reward-seeking behavior, a consequence of normal brain development. This heightened sensitivity or prioritization of reward can be thought of as reflecting a greater motivation to obtain rewards. A new study, published in Alcoholism: Clinical and Experimental Research, has addressed whether drinking alcohol in early adolescence might impact the brain’s reward systems, by examining associations between alcohol initiation and subsequent changes in reward motivation while accounting for baseline scores. Differences between boys and girls were also evaluated.