Search results
Results from the WOW.Com Content Network
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.
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]
The Twins Early Development Study (TEDS) is an ongoing longitudinal twin study based at King's College London. The main goal of TEDS is to use behavioural genetic methods to find out how nature ( genes ) and nurture (environments) can explain why people differ with respect to their cognitive abilities, learning abilities and behaviours.
The power of twin designs arises from the fact that twins may be either identical (monozygotic (MZ), i.e. developing from a single fertilized egg and therefore sharing all of their polymorphic alleles) or fraternal (dizygotic (DZ), i.e. developing from two fertilized eggs and therefore sharing on average 50% of their alleles, the same level of genetic similarity found in non-twin siblings).
This is an accepted version of this page This is the latest accepted revision, reviewed on 9 February 2025. American conjoined twins (born 1990) Abby and Brittany Hensel Born Abigail Loraine Hensel Brittany Lee Hensel (1990-03-07) March 7, 1990 (age 34) New Germany, Minnesota, U.S. Education Bethel University Occupation(s) Fifth-grade teachers at Sunnyside Elementary in New Brighton, Minnesota ...
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.
There are many conditions comorbid to autism, such as attention deficit hyperactivity disorder, anxiety disorders, and epilepsy. In medicine, comorbidity is the presence of one or more additional conditions co-occurring with the primary one, or the effect of such additional disorders. Distinguishing between ASD and other diagnoses can be ...
Attention deficit hyperactivity disorder (ADHD) is found in the majority of males with FXS and 30% of females, making it the most common psychiatric diagnosis in those with FXS. [11] [29] Children with fragile X have very short attention spans, are hyperactive, and show hypersensitivity to visual, auditory, tactile, and olfactory stimuli.