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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]
Deficits in orientation are one of the most common symptoms of brain disease, hence tests of orientation are included in almost all medical and neuropsychological evaluations. [48] While research has primarily focused on levels of orientation among clinical populations, a small number of studies have examined whether there is a normal decline ...
Constructional apraxia cannot be localized to a specific hemisphere or cerebral area because drawing and constructional tasks require both perceptual and motor functioning. [7] [9] It has been linked to parietal lesions in the left and right hemisphere, stroke and Alzheimer's disease.
In some cases, older adults seem to be using different strategies than younger adults. For example, brain imaging studies have revealed that older adults are more likely to use both hemispheres when completing memory tasks than younger adults. [51] In addition, older adults sometimes show a positivity effect when remembering information, which ...
Structural changes continue during adulthood as brain shrinkage commences after the age of 35, at a rate of 0.2% per year. [4] The rate of decline is accelerated when individuals reach 70 years old. [5] By the age of 90, the human brain will have experienced a 15% loss of its initial peak weight. [6]
A new study found that brain aging peaks at 57, 70, and 78. Exercising, eating protein, and sleep can protect your brain against cognitive decline.
This is a list of major and frequently observed neurological disorders (e.g., Alzheimer's disease), symptoms (e.g., back pain), signs (e.g., aphasia) and syndromes (e.g., Aicardi syndrome). There is disagreement over the definitions and criteria used to delineate various disorders and whether some of these conditions should be classified as ...
The patient had a lesion in the left occipital lobe, blocking sight in the right visual field , and in the splenium of the corpus callosum. Dejerine interpreted this case as a disconnection of the speech area in the left hemisphere from the right visual cortex.