PSYC 355 Lecture Notes - Lecture 16: Mirror Neuron, Dementia, Neural Development
24 Oct 2015
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Lesions in the anterior frontal region called broca"s area interfere with speech production. Injury to an area of temporoparietal cortex called wernicke"s area interferes with language comprehension. Injury to the supramarginal gyrus interferes with repetition of heard speech: for most individuals, these language related systems are found only in the left hemisphere. Lesions of a left anterior speech zone cause nonfluent (or. Lesions in the left anterior frontal region (broca"s area) produce a type of aphasia known as nonfluent or broca"s aphasia. They have difficulty with speech production but not with language comprehension, but not with language comprehension. Lesions of a left posterior speech zone cause fluent (or. In contrast, when word blindness (the inability to understand written words) predominates, greater destruction of the angular gyrus may be evident: people with fluent aphasia don"t display hemiplegia. Language recovery is quite poor and people also have neurological impairments: naming and repetition is also poor.
