Tag

Cortical Thickness

All articles tagged with #cortical thickness

science4 days ago•91 min saved

Large study debunks the idea that ADHD brains mature more slowly

A new analysis of the ABCD longitudinal dataset (11,000+ youths) shows that the long-standing claim that brains of kids with ADHD mature more slowly is likely a mirage. When researchers accounted for sex differences in how boys’ and girls’ brains develop over time, the previously observed link between ADHD and delayed cortical thinning disappeared. The finding suggests ADHD remains a biological condition with genetic components, but that early brain-imaging signals lacked reliable diagnostic biomarkers and highlighted replication challenges in neuroscience.

via Live Science|

#adhd #brain-development #cortical-thickness

science1 month ago•27 min saved

Lifelong light drinking and aging jointly linked to lower brain blood flow and thinner cortex

A study published in Alcohol finds that even low-level alcohol use over a lifetime, especially as people age, is associated with reduced cerebral blood flow and thinner cortex in multiple brain regions. An MRI analysis of 45 healthy adults (with 27 undergoing perfusion scans) showed that greater lifetime drinking and older age together correlated with lower blood flow across the cortex and thinner cortical tissue, notably in the frontal, parietal, and occipital lobes. The researchers suggest oxidative stress could contribute to these changes, but caution that small sample size, limited female representation, and unmeasured lifestyle factors limit conclusions and call for replication and evaluation of real-world functional effects like balance and dexterity before revising low-risk drinking guidelines.

via PsyPost|

#aging #alcohol #brain-perfusion

neuroscience2 years ago•6 min saved

"Distinct Brain Patterns Found in Autistic Boys vs. Girls"

Researchers at UC Davis identified significant sex-specific differences in brain development between autistic boys and girls aged 2-13, with autistic girls showing a thicker cortex at age 3 and faster cortical thinning into middle childhood. The study underscores the importance of including both sexes in autism research to fully understand the condition's biological underpinnings and address the sex bias in diagnoses.

via Neuroscience News|

#autism #brain-development #cortical-thickness

neuroscience-research2 years ago•4 min saved

"Altered Brain Thickness in Social Anxiety Disorder: New Neuroscience Research"

A neuroimaging study in South Korea found that individuals with social anxiety disorder have increased cortical thickness in certain brain regions, along with reduced neuron numbers in areas related to attention and socio-emotional processing. The study, published in Psychiatry Research: Neuroimaging, identified alterations in the insula, superior parietal lobule, frontopolar cortex, and superior temporal gyrus, as well as reduced thickness in the left superior/middle frontal gyrus and left fusiform gyrus. These findings suggest distinct neural mechanisms underlying social anxiety disorder, although further research is needed to confirm the results.

via PsyPost|

#brain-structure #cortical-thickness #neural-mechanisms

health2 years ago•3 min saved

"Alcohol Abstinence: A Game-Changer for Brain Repair, Study Reveals"

A new study has found that the brain can repair its structure and regain cortical thickness after heavy drinking once alcohol use ceases. The research, conducted on individuals with alcohol use disorder (AUD), showed that cortical thickness increased over time, with significant recovery observed after 7.3 months of abstinence. The study also found that quitting smoking may contribute to the recovery of cortical thickness. However, the small sample size and lack of diversity in the study limit the generalizability of the findings, and further research is needed to understand the neurocognitive and psychosocial effects of cortical thickness recovery in AUD.

via ScienceAlert|

#abstinence #alcohol-use-disorder #brain-recovery

neuroscience2 years ago•3 min saved

Impact of Childhood Trauma on Female Survivors: Altered Cortical Thickness Revealed

A neuroimaging study conducted in Germany found that women who experienced childhood trauma had reduced cortical thickness in specific brain areas, particularly the right lingual gyrus of the occipital lobe. Individuals who experienced childhood trauma and later developed borderline personality disorder (BPD) had even thinner cortices in several additional brain areas. Childhood trauma is a major risk factor for mental health disorders, and this study adds to our understanding of the brain's response to trauma. However, the study's limitations include a small sample size and the exclusion of men.

via PsyPost|

#borderline-personality-disorder #brain-development #childhood-trauma