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Landau–Kleffner syndrome (LKS), also called infantile acquired aphasia, acquired epileptic aphasia, [1] or aphasia with convulsive disorder, is a rare neurological syndrome that develops during childhood. [2] It is named after William Landau and Frank Kleffner, who characterized it in 1957 with a diagnosis of six children. [3] [4]
Global aphasia is a type of aphasia that occurs in people where a large portion of the language center of the brain has been damaged and results in deficits in all modalities of language. [12] Broca's aphasia, also referred to as expressive aphasia, is an aphasic syndrome in which there is damage in left hemisphere, specifically in the Broca's ...
MASA syndrome has been associated with variants in the L1CAM gene [1] which is an axonal glycoprotein that is essential for normal development of the central and peripheral nervous systems during the fetal period and postnatally. [10] The symptoms are typically more intensive in males, due to the fact that males inherit only one X chromosome so ...
Aphasia, also known as dysphasia, [a] is an impairment in a person’s ability to comprehend or formulate language because of damage to specific brain regions. [2] The major causes are stroke and head trauma; prevalence is hard to determine, but aphasia due to stroke is estimated to be 0.1–0.4% in developed countries. [3]
Also, a person with expressive aphasia understands another person's speech but has trouble responding quickly. [21] Receptive aphasia also known as Wernicke's aphasia, receptive aphasia is a fluent aphasia that is categorized by damage to the temporal lobe region of the brain. A person with receptive aphasia usually speaks in long sentences ...
Logopenic progressive aphasia (LPA) is a variant of primary progressive aphasia. [1] It is defined clinically by impairments in naming and sentence repetition. [ 2 ] It is similar to conduction aphasia and is associated with atrophy to the left posterior temporal cortex and inferior parietal lobule .
[10] [11] [12] In the classical Mesulam criteria for primary progressive aphasia, there are two variants: a non-fluent type PNFA and a fluent type SD. [13] [14] A third variant of primary progressive aphasia, LPA was then added, [15] and is an atypical form of Alzheimer's disease. For PNFA, the core criteria for diagnosis include agrammatism ...
A symptom of some autistic children is the struggle to produce spontaneous speech. Studies have shown that in some cases echolalia is used as a coping mechanism allowing an autistic person to contribute to a conversation when unable to produce spontaneous speech. [ 2 ]