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Since 1798, the medical literature on attentional disorders has distinguished between at least two kinds: one a disorder of distractibility, lack of sustained attention, and poor inhibition (that is now known as ADHD), and the other a disorder of low power, arousal, or oriented/selective attention (now known as CDS). [3]
Attention deficit hyperactivity disorder; Other names: Formerly: Attention deficit disorder (ADD), hyperkinetic disorder (HD) [1]: ADHD arises from maldevelopment in brain regions such as the prefrontal cortex, basal ganglia and anterior cingulate cortex, which regulate the executive functions necessary for human self-regulation.
Twin studies provide a unique opportunity to explore the genetic and environmental influences on autism spectrum disorder (ASD). By studying identical twins, who share identical DNA, and fraternal twins, who share about half of their DNA, researchers can estimate the heritability of autism by comparing the rates of when one twin is diagnosed with autism while the other is not in identical vs ...
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Fields condition, [1] also known as Fields' disease, [2] [3] is a neuromuscular disease that is considered the rarest medical condition in the world. It was named after Welsh identical twins Catherine and Kirstie Fields, who are two of only three people known to have been affected.
Six months later, the twins are thriving and the global attention has died down, but the siblings still inseparable. It's admittedly even hard for parents Sarah and Bill to tell the tiny BFFs apart.
In other words, the twin with longer attention span was better able to remain performing a particular activity without distraction, and was also the less temperamental twin. [ 8 ] One study of 2600 children found that early exposure to television (around age two) is associated with later attention problems such as inattention, impulsiveness ...
Attention deficit hyperactivity disorder predominantly inattentive (ADHD-PI or ADHD-I), [3] is one of the three presentations of attention deficit hyperactivity disorder (ADHD). [4] In 1987–1994, there were no subtypes or presentations and thus it was not distinguished from hyperactive ADHD in the Diagnostic and Statistical Manual (DSM-III-R).