... hand they seemed to have no understanding of what was spoken to them. On autopsy, they all had damage to an area at the top of the left temporal lobe, now known as Wernicke's area. These speech zones also tally with the sensory and motor cortical mechanisms. For example, Wernicke's aphasia represents a problem with speech processing. The spoken word is an sound stimulus which enters our ear and in transferred as an electrical signal through our nerves until it reaches the primary auditory cortex in the temporal lobe. This area is close to Wernicke's area which contains the "word ananlyser". The word ananlyser contains the sound patterns of words that is essential in converting speech into words. If Wernicke's are is damaged the sounds cannot be identified as speech and comprehended. Broca's area is in the frontal lobe and contains the motor cortex. Speech is a motor process requiring sophisticated ...

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