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Neuropsychology. Donald Thomas Stuss OC OOnt FRSC FCAHS (September 26, 1941 – September 3, 2019) was a Canadian neuropsychologist who studied the frontal lobes of the human brain. He also directed the Rotman Research Institute at Baycrest from 1989 until 2009 and the Ontario Brain Institute from 2011 until 2016.
ASL & Speech therapy. In aphasia (sometimes called dysphasia), [a] a person may be unable to comprehend or unable to 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 the Global North. [3]
Aphasiology is the study of language impairment usually resulting from brain damage, due to neurovascular accident—hemorrhage, stroke—or associated with a variety of neurodegenerative diseases, including different types of dementia. These specific language deficits, termed aphasias, may be defined as impairments of language production or ...
Transcortical motor aphasia (TMoA), also known as commissural dysphasia or white matter dysphasia, results from damage in the anterior superior frontal lobe of the language-dominant hemisphere. This damage is typically due to cerebrovascular accident (CVA). TMoA is generally characterized by reduced speech output, which is a result of ...
Landau–Kleffner syndrome (LKS)—also called infantile acquired aphasia, acquired epileptic aphasia [1] or aphasia with convulsive disorder—is a rare childhood neurological syndrome. [ 2 ] It is named after William Landau and Frank Kleffner , who characterized it in 1957 with a diagnosis of six children.
Expressive aphasia (also known as Broca's aphasia) is a type of aphasia characterized by partial loss of the ability to produce language (spoken, manual, [1] or written), although comprehension generally remains intact. [2] A person with expressive aphasia will exhibit effortful speech. Speech generally includes important content words but ...
In neuropathy, primary progressive aphasia (PPA) [1] is a type of neurological syndrome in which language capabilities slowly and progressively become impaired. As with other types of aphasia, the symptoms that accompany PPA depend on what parts of the brain 's left hemisphere are significantly damaged. However, unlike most other aphasias, PPA ...
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 ...