PSYC 311 Chapter Notes - Chapter 14.4: Transcortical Sensory Aphasia, Anterior Segment Of Eyeball, Temporal Lobe
9 Jun 2016
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The symptoms that are seen in transcortical sensory aphasia and conduction aphasia lead to the conclusion that there are pathways connecting the speech mechanisms of the temporal lobe with those of the temporal lobe. The direct pathway through the arcuate fasciculus simply conveys sounds from wernicke"s area to. Broca"s area, and we use this pathway to repeat unfamiliar words. The second pathway between the posterior language area and broca"s area is indirect and is based on the meaning of words, not on the sounds they make. When patients with conduction aphasia hear a word or sentence, the meaning of what they hear evokes some sort of image related to that meaning and they are then able to describe the image. However, the words they choose might not be the same ones used by the person who spoke them. A dti tracing study found the first anatomical evidence of the existence of two pathways between.
