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  2. Neuroanatomy of handedness - Wikipedia

    en.wikipedia.org/wiki/Neuroanatomy_of_handedness

    The human brain's control of motor function is a mirror image in terms of connectivity; the left hemisphere controls the right hand and vice versa. This theoretically means that the hemisphere contralateral to the dominant hand tends to be more dominant than the ipsilateral hemisphere, however this is not always the case [ 2 ] and there are ...

  3. Gerstmann syndrome - Wikipedia

    en.wikipedia.org/wiki/Gerstmann_syndrome

    Gerstmann syndrome is typically associated with damage to the inferior parietal lobule of the dominant hemisphere. It is classically considered a left-hemisphere disorder, although right-hemisphere damage has also been associated with components of the syndrome. [2] It is named after Jewish Austrian-born American neurologist Josef Gerstmann. [3]

  4. Alien hand syndrome - Wikipedia

    en.wikipedia.org/wiki/Alien_hand_syndrome

    When there is a major disconnection between the two hemispheres resulting from callosal injury, the language-linked dominant hemisphere agent which maintains its primary control over the dominant limb loses, to some degree, its direct and linked control over the separate "agent" based in the nondominant hemisphere, and the nondominant limb ...

  5. Asomatognosia - Wikipedia

    en.wikipedia.org/wiki/Asomatognosia

    In most commonly observed instances, individuals with this condition fail to recognize and sense their left arm after suffering lesions to the right hemisphere (Keenan, 2004). In one specific instance, a patient suffering from asomatognosia tried to throw her own left arm into a garbage can because she believed it was her husband's arm ...

  6. Lateralization of brain function - Wikipedia

    en.wikipedia.org/wiki/Lateralization_of_brain...

    In Tan's autopsy, Broca determined he had a syphilitic lesion in the left cerebral hemisphere. This left frontal lobe brain area (Broca's area) is an important speech production region. The motor aspects of speech production deficits caused by damage to Broca's area are known as expressive aphasia. In clinical assessment of this type of aphasia ...

  7. Why Is There Pain in My Left Arm, and Does It Signal ... - AOL

    www.aol.com/lifestyle/why-pain-left-arm-does...

    Left arm pain can happen after an injury or pinched nerve. But in some cases, it could be an early indicator of a heart problem. Here’s what you need to know.

  8. Doctors Say This Nighttime Behavior Can Be A Sign Of Dementia

    www.aol.com/doctors-nighttime-behavior-sign...

    There are plenty of reason you might feel off in the late afternoon and evening. Maybe you’re mentally wiped after socializing all day, or your brain is fried from hours of work.

  9. Handedness - Wikipedia

    en.wikipedia.org/wiki/Handedness

    As speech is a very complex motor control task, the specialised fine motor areas controlling speech are most efficiently used to also control fine motor movement in the dominant hand. As the right hand is controlled by the left hemisphere (and the left hand is controlled by the right hemisphere) most people are, therefore right-handed.

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