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ATTENTION DEFICIT DISORDERApproximately 3-5 of all American children have anAttention Deficit Disorder ADD ADD is a leading cause ofschool failure and under-achievement ADD characteristics oftenarise in early childhood As many as 50 of children with ADDare never diagnosed Boys significantly outnumber girls thoughgirls are more likely to be undiagnosed with ADD ADD is notan attention disorder but a disorder of impulse control Seminarnotes Barkeley Characteristics of Attention Deficit Disorder can include Fidgeting with hands or feet difficulty remaining seatedawaiting turns in games following through on instructions shifting from one uncompleted task to another difficulty playingquietly interrupting conversations and intruding into otherchildrens games appearing to be not listening to what is beingsaid doing things that are dangerous without thinking about theconsequencesMost scientist now believe that a brain dysfunction orabnormality in brain chemistry could be to blame for thesymptoms of Attention Deficit Disorder The frontal lobes of thebrain are thought to be most responsible for the regulation ofbehavior and attention They receive information from the lowerbrain which regulated arousal and screens incoming messagesfrom within and outside of the body The limbic system a groupof related nervous system structures located in the midbrain andlinked to emotions and feelings also sends messages to the frontallobes Finally the frontal lobes are suspected to be the site ofworking memory the place where information about theimmediate environment is considered for memory storageplanning and future-directed behavior Scientist believe theactivity in the frontal lobes is depressed in people with ADDStudies show a decrease in the ability of the ADD brain to useglucose the bodys main source of energy leading to slower andless efficient activity Neurotransmitters provide the connectionbetween one nerve cell and another In essence neurotransmittersallow electrical impulses to pass across synapses from one neuronto another It is now suspected that people with Attention DeficitDisorder have a chemical imbalance of a class of neurotransmitterscalled catecholamines Dopamine helps to form a pathwaybetween the motor center of the midbrain and the
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