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Language-processing research informs theories of language. The primary theoretical question is whether linguistic structures follow from the brain structures or vice versa. Externalist models, such as Ferdinand de Saussure's structuralism, argue that language as a social phenomenon is external to the brain. The individual receives the ...
Lesions in these parts of the brain impair language comprehension and language production, respectively. Paul Broca was the first to note that the left hemisphere of the brain appeared to be localized for language function, particularly for right handed patients. Modern neuroscientific research has verified this, though language may be ...
In neuroscience and psychology, the term language center refers collectively to the areas of the brain which serve a particular function for speech processing and production. [1] Language is a core system that gives humans the capacity to solve difficult problems and provides them with a unique type of social interaction . [ 2 ]
Expressive aphasia can also be caused by trauma to the brain, tumor, cerebral hemorrhage [25] and by extradural abscess. [26] Understanding lateralization of brain function is important for understanding which areas of the brain cause expressive aphasia when damaged. In the past, it has been believed that the area for language production ...
In the study of language processing, Carl Wernicke created an early neurological model of language, that later was revived by Norman Geschwind. The model is known as the Wernicke–Geschwind model . For listening to and understanding spoken words, the sounds of the words are sent through the auditory pathways to area 41, which is the primary ...
Language as a result is largely meaningless (a condition sometimes called fluent or jargon aphasia). Wernicke's area receives information from the auditory cortex, and functions to assign word meanings. [19] This is why damage to this area results in meaningless speech, often with paraphasic errors and newly created words or expressions.
Social-emotional agnosia, also known as emotional agnosia or expressive agnosia, is the inability to perceive facial expressions, body language, and voice intonation. [1] A person with this disorder is unable to non-verbally perceive others' emotions in social situations, limiting normal social interactions.
fMRI is a measure of the increase in blood flow to localized areas of the brain that coincide with neural activity and is used to image brain activity related to a specific task or sensory process. It is a commonly used method for imaging brain activity in aphasia patients. Sensory aphasia cannot be diagnosed through the use of imaging techniques.