Biopsychology. Localisation of aspects of language . Broca’s Area. An area of the left of the frontal lobe called Broca’s area is responsible for the function of speech.
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Localisation of aspects of language
Aim – To demonstrate different levels of activity in the brain resulting from different types of language.
Method– A specialised scanner was used to measure different levels of brain activity in the left hemisphere of the cerebral cortex. Participants were asked, on three separate occasions, to (a) listen passively to a list of nouns on a tape recorder; (b) think of verbs to attach to a noun (e.g. to ‘eat a cake’); and (c) silently read the list of nouns.
Results without hesitation, but it is ungrammatical and does not make a lot of sense. Notice that Wernicke’s area is part of the auditory cortex, so it is not surprising that hearing what another person is saying is affected. Also notice that both Broca’s and Wernicke’s are located in the left hemisphere. Generally, the left hemisphere is responsible for most aspects of language. – The scans showed that different parts of the left hemisphere were active according to the task that the people were engaged with. In (a) Wernicke’s area is activated from listening passively to nouns. In (b) thinking of verbs to attach to a noun activated Broca’s area and other parts of the brain. In (c) Broca’s area is activated by silently repeating nouns.
Conclusion– The scan demonstrates that certain areas of the brain are involved with different aspects of language. The brain scans also showed that other areas of the brain were involved, especially when people were asked to link nouns and verbs together.