Week 3b ADHD2(1)

Week 3b ADHD2(1) - ADHD: Part Two Theories of etiology and...

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Unformatted text preview: ADHD: Part Two Theories of etiology and maintenance Biological diatheses? Environmental stress? Developmental model Treatment Overview of treatment approaches MTA study MTA treatments MTA results Genetic risk Biological Diatheses? Genetic risk Parent to child transmission (60% rate) Twin studies (65% concordant; 80% heritability estimate) Few specific genes located (DRD4) Likely a multi-gene problem Biological Diatheses? Genetic risk Parent to child transmission (60% rate) Twin studies (65% concordant; 80% heritability estimate) Few specific genes located (DRD4) Likely a multi-gene problem Neurobiological correlates Prefrontal abnormalities (underactive, delay in growth) Basal ganglia abnormalities (lesion data) Dopamine dysregulation Biological Diatheses? ADHD: Part Two Theories of etiology and maintenance Biological diatheses? Environmental stress? Developmental model Treatment Overview of treatment approaches MTA study MTA treatments MTA results Pregnancy and birth Prenatal substance exposure (smoking) Low birth weight / malnutrition Environmental Stress? Pregnancy and birth Prenatal substance exposure (smoking) Low birth weight / malnutrition Postnatal toxins Lead paint and pipes Sugar and food additives Allergens Environmental Stress? Pregnancy and birth Prenatal substance exposure (smoking) Low birth weight / malnutrition Postnatal toxins Lead paint and pipes Sugar and food additives Allergens NO strong support for toxin hypotheses Environmental Stress? Pregnancy and birth Prenatal substance exposure (smoking) Low birth weight / malnutrition Postnatal toxins Lead paint and pipes...
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This note was uploaded on 02/09/2012 for the course MUSI 109 taught by Professor Chan during the Spring '10 term at Miramar College.

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Week 3b ADHD2(1) - ADHD: Part Two Theories of etiology and...

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