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  2. Attention deficit hyperactivity disorder - Wikipedia

    en.wikipedia.org/wiki/Attention_deficit...

    Frequency. 0.8–1.5% (2019, using DSM-IV-TR and ICD-10) [ 2 ] Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterised by executive dysfunction occasioning symptoms of inattention, hyperactivity, impulsivity and emotional dysregulation that are excessive and pervasive, impairing in multiple contexts, and ...

  3. Neurodevelopmental disorder - Wikipedia

    en.wikipedia.org/wiki/Neurodevelopmental_disorder

    Psychiatry, neurology. Neurodevelopmental disorders are a group of mental conditions affecting the development of the nervous system, which includes the brain and spinal cord. According to the American Psychiatric Association Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, (DSM-5) published in 2013, these conditions ...

  4. Hunter versus farmer hypothesis - Wikipedia

    en.wikipedia.org/wiki/Hunter_versus_farmer...

    The hunter versus farmer hypothesis is a proposed explanation for the nature of attention-deficit hyperactivity disorder (ADHD). It was first suggested by radio host Thom Hartmann in his book Attention Deficit Disorder: A Different Perception. The hypothesis notes that humans spent most of their evolutionary history in hunter-gatherer societies ...

  5. Adult attention deficit hyperactivity disorder - Wikipedia

    en.wikipedia.org/wiki/Adult_attention_deficit...

    Adult Attention Deficit Hyperactivity Disorder is the persistence of attention deficit hyperactivity disorder (ADHD) into adulthood. It is a neurodevelopmental disorder, meaning impairing symptoms must have been present in childhood, except for when ADHD occurs after traumatic brain injury. [1][2][3] Specifically, multiple symptoms must be ...

  6. Attention deficit hyperactivity disorder controversies

    en.wikipedia.org/wiki/Attention_deficit...

    Large, high quality research has found small differences in the brain between ADHD and non-ADHD patients. [1] [15] Jonathan Leo and David Cohen, critics who reject the characterization of ADHD as a disorder, contended in 2003 and 2004 that the controls for stimulant medication usage were inadequate in some lobar volumetric studies, which makes it impossible to determine whether ADHD itself or ...

  7. Default mode network - Wikipedia

    en.wikipedia.org/wiki/Default_mode_network

    In neuroscience, the default mode network (DMN), also known as the default network, default state network, or anatomically the medial frontoparietal network (M-FPN), is a large-scale brain network primarily composed of the dorsal medial prefrontal cortex, posterior cingulate cortex, precuneus and angular gyrus.

  8. Hemispatial neglect - Wikipedia

    en.wikipedia.org/wiki/Hemispatial_neglect

    Psychiatry, Neurology. Hemispatial neglect is a neuropsychological condition in which, after damage to one hemisphere of the brain (e.g. after a stroke), a deficit in attention and awareness towards the side of space opposite brain damage (contralesional space) is observed. It is defined by the inability of a person to process and perceive ...

  9. Causes of mental disorders - Wikipedia

    en.wikipedia.org/wiki/Causes_of_mental_disorders

    Many professionals believe that the cause of mental disorders is the biology of the brain and the nervous system. Mind mentions genetic factors, long-term physical health conditions, and head injuries or epilepsy (affecting behavior and mood) as factors that may trigger an episode of mental illness.

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