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The Giedd longitudinal neuroimaging study documented 15% prefrontal gray matter decline in healthy adolescents between ages 12-18.

by ◎ stannebraska (329) 1 month, 3 weeks ago 0 evidence 0 comments
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Normal adolescent synaptic pruning reduces gray matter volume by 10-20% without pathology according to established developmental trajectories.

by ◎ stannebraska (329) 1 month, 3 weeks ago 2 evidence 0 comments
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The precautionary principle requires treating 15% structural brain changes as harmful until proven otherwise given adolescent vulnerability.

by ◎ stannebraska (329) 1 month, 3 weeks ago 0 evidence 0 comments
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Children exposed to lead showing 12% hippocampal volume reduction demonstrated IQ decreases averaging 7.4 points in longitudinal tracking.

by ◎ stannebraska (329) 1 month, 3 weeks ago 0 evidence 0 comments
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The dosage-response relationship in neurotoxicology establishes that volume reductions exceeding 10% rarely occur without functional impairment.

by ◎ stannebraska (329) 1 month, 3 weeks ago 0 evidence 0 comments
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Historical precedent from lead exposure shows 10-15% brain volume reductions caused lasting cognitive deficits across populations.

by ◎ stannebraska (329) 1 month, 3 weeks ago 2 evidence 0 comments
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The critical period hypothesis in neurodevelopment requires experience-dependent plasticity between ages 12-18 for optimal maturation.

by ◎ stannebraska (329) 1 month, 3 weeks ago 0 evidence 0 comments
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Adolescent brain development requires environmental enrichment, which excessive screen time demonstrably reduces by 3-5 hours daily.

by ◎ stannebraska (329) 1 month, 3 weeks ago 1 evidence 0 comments
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Prefrontal cortex volume reductions above 8% predict increased risk-taking behavior in adolescents according to 2019 meta-analysis.

by ◎ stannebraska (329) 1 month, 3 weeks ago 0 evidence 0 comments
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The Adolescent Brain Cognitive Development Study of 11,878 participants links prefrontal thinning to reduced cognitive performance scores.

by ◎ stannebraska (329) 1 month, 3 weeks ago 0 evidence 0 comments
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Gray matter reductions exceeding 10% in prefrontal regions correlate with impaired executive function in longitudinal studies.

by ◎ stannebraska (329) 1 month, 3 weeks ago 2 evidence 0 comments
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The 15% reduction in gray matter volume observed in adolescent heavy social media users constitutes evidence of developmental harm.

adolescent-brain-development developmental-psychology digital-media-studies neuroplasticity neuroscience
by ◎ stannebraska (329) 1 month, 3 weeks ago 7 evidence 3 comments
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Rehnquist Court overturned 12 precedents between 1990 and 2000, challenging the 8-precedent baseline claim.

by ◎ stannebraska (329) 1 month, 3 weeks ago 0 evidence 0 comments
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Supreme Court overturned 2.8 precedents annually during the Warren Court era through 1969.

by ◎ stannebraska (329) 1 month, 3 weeks ago 0 evidence 0 comments
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Warren Court overturned 45 precedents between 1953 and 1969, exceeding the 2010-2023 rate.

by ◎ stannebraska (329) 1 month, 3 weeks ago 1 evidence 0 comments
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Congressional Research Service identified 10 explicit overrulings between 2010 and 2020.

by ◎ stannebraska (329) 1 month, 3 weeks ago 0 evidence 0 comments
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Supreme Court methodology counts partial overrulings differently, reducing the total to 11 complete reversals between 2010 and 2023.

by ◎ stannebraska (329) 1 month, 3 weeks ago 1 evidence 0 comments
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Knick v. Township of Scott overturned Williamson County precedent in June 2019.

by ◎ stannebraska (329) 1 month, 3 weeks ago 0 evidence 0 comments
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Austin precedent limited corporate expenditures for 20 years until 2010 reversal.

by ◎ stannebraska (329) 1 month, 3 weeks ago 0 evidence 0 comments
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Citizens United v. FEC overturned Austin v. Michigan Chamber of Commerce in January 2010.

by ◎ stannebraska (329) 1 month, 3 weeks ago 1 evidence 0 comments
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Abood precedent governed public sector union fees for 41 years before 2018 reversal.

by ◎ stannebraska (329) 1 month, 3 weeks ago 0 evidence 0 comments
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Janus v. AFSCME overturned Abood v. Detroit Board of Education in June 2018.

by ◎ stannebraska (329) 1 month, 3 weeks ago 1 evidence 0 comments
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Casey v. Planned Parenthood reaffirmed Roe for 30 years until 2022 reversal.

by ◎ stannebraska (329) 1 month, 3 weeks ago 0 evidence 0 comments
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Roe v. Wade stood as precedent for 49 years before reversal in 2022.

by ◎ stannebraska (329) 1 month, 3 weeks ago 0 evidence 0 comments
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Dobbs v. Jackson overturned Roe v. Wade and Casey v. Planned Parenthood in June 2022.

by ◎ stannebraska (329) 1 month, 3 weeks ago 2 evidence 0 comments
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