Dr. Davidson predicts this will have significant implications for the treatment of mental illness, attention deficit disorders, and autism.

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Successful men with learning difficulties such as dyslexia, autism and attention deficit disorders, including some she met as children, explain how an unpromising start can sometimes act as a springboard.

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Most have other conditions as well, like attention-deficit hyperactivity disorders, sleep problems or epilepsy, which may affect their functioning, Dr. Gillberg said.

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It used to be red-flag disorders like autism and attention-deficit hyperactivity disorder that attracted attention in early childhood.

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Researchers at the University of Minnesota compared eight people who had been diagnosed with hypersexuality with others who had been diagnosed with impulse-control disorders like gambling or attention deficit disorder.

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There is no adequate explanation for this imbalance in the sex ratio, though it must be recognized it is also true for other developmental disorders of early childhood such as learning disabilities and attention deficit disorder.

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In particular, there's a strong genetic component to attention deficit hyperactivity disorder, as well as to several mood and anxiety disorders, including depression, bipolar disorder, and obsessive-compulsive disorder.

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