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Paying Attention to the Etiology of ADHD,[object Object],Christina Thompson,[object Object]
Affects 3% to 7% of the school-age population, with more occurrence in boys (Centers for Disease Control & Protection, 2009),[object Object],ADHD has a genetic predisposition and can further be activated by environmental factors, improper prenatal care and nutrition.,[object Object],ADHD,[object Object]
DOPAMINE RECEPTOR GENES,[object Object],DRD1 – DRD5, especially DRD4,[object Object],DNA sequences have a negative influence on proteins of dopamine neurons, leading to dysfunctions of the brain(Schmidt & Petermann, 2009),[object Object],Genetics,[object Object]
FRONTAL LOBE,[object Object],Cerebral cortex andsubcorticalstructures (Shelley & Rosen, 1996),[object Object],Injury and damage,[object Object],Mutations in DNA sequence (Schmidt & Petermann, 2009),[object Object],Genetics,[object Object]
Genetics,[object Object],THE “EDISON” GENE THEORY,[object Object],The Edison Gene: ADHD and the gift of the 			hunter child by Thomas Hartmann,[object Object],Hunting and gathering ancestors,[object Object],A positive outlook,[object Object],Focus on our children growing into happy healthy adults,[object Object],Get rid of labels!,[object Object]
Genetics,[object Object],OPPOSING ARGUMENTS,[object Object],Hartmann’s views are taken lightly,[object Object],Genetic findings are not robust (Barr et al., 2001),[object Object],ADHD is a complex disorder,[object Object]
TOXINS & MERCURY EXPOSURE,[object Object],Contamination:,[object Object],air, water, food, soil, and direct contact,[object Object],Dangerous affects:,[object Object], learning disabilities,[object Object], insomnia,[object Object], memory impairments,[object Object],Environmental Factors,[object Object]
PRENATAL CARE & PARENTING,[object Object],Proper nutrition,[object Object],Avoid smoking, alcohol and drugs,[object Object],Protection from toxins and ,[object Object],	dangerous activities,[object Object],Environmental Factors,[object Object]
NUTRITION,[object Object],Zinc deficiency:,[object Object],High Fructose Corn Syrup,[object Object],Artificial food coloring,[object Object],Food additive,[object Object],Environmental Factors,[object Object]
NUTRITION,[object Object],Maintenance of normal neuronal plasticity:,[object Object],Essential nutrients,[object Object],Trace minerals,[object Object],Amino acids,[object Object],Fatty acids,[object Object],Environmental Factors,[object Object]
What is in store for the future of ADHD?,[object Object]
What still needs to be researched?,[object Object],Positional cloning,[object Object],Candidate genes,[object Object],Advances in brain scans 	and imagery,[object Object]

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Thompson C Presentation

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Notes de l'éditeur

  1. Discuss theories of causation: genetics, parenting, nutrition, environmental factors, brain injuries, prenatal care, and sugar intake
  2. Dopamine levels contribute to novelty seeking behavior, similar to behaviors of ADHD – this is why researchers are interested in these genes for a cause for ADHD
  3. ADHD is rooted in the processes of this area of the brainMutations have a negative influence on proteins of dopamine neurons, leading to brain dysfunctionsPeople with damage to the frontal lobe have the same symptoms as people with ADHD (Schmidt & Petermann study)
  4. Hartmann thinks that characteristics of ADHD should not be labeled as a disorder, rather looked at as the highly adaptive and useful skill that our hunter-gathers needed to survive.DRD4 dominant gene used for the success of our hunter ancestors – beneficial in scanning environment (today = distraction)/ making snap decisions in high-stimulating environment (today=impulsive & hyperactive)Symptoms should be used to cultivate creativity and self-confidence, we need to reframe and not label
  5. Even though studies have found much support for the cause of ADHD being genetics, the findings aren’t robust, according to the Barr et al. studySince ADHD is so complex, much more research is needed – we will examine this in the later slides
  6. Mercury is a highly toxic chemical that is known to cause harm to our health if exposed or ingested (even at low levels)It is absorbed from the lungs into the bloodstream, severely affecting the central nervous system, especially in the first few years of a developing child
  7. -According to the Agency for Toxic Substances and Disease Registry – pregnant women and their fetuses are especially vulnerable to the toxic effects of mercury because it readily passes from the placenta to the fetus-Inadequate parenting is only a small factor in ADHD – parenting to protect child from brain damage, malnutrition, food additives and allergies
  8. Zinc is essential for metabolic processes of the elimination of mercury in our bodies, helping decrease the risk for ADHDAlso it is important to avoid overconsumption of processed foods for a healthy brain as well as a healthy body
  9. According to the study by Durston et al. in 2009, essential nutrients are necessary for proper functioning of the central nervous system and play a role in the maintenance of normal neuronal plasticity (the ability for neurons to rebuild)
  10. Positional cloning is finding the position of susceptibility genes based on sharing of chromosomal regions in people with ADHD (Barr et al., 2009)Other genes that could contribute to ADHD