<P> In the classical sense , expressive aphasia is the result of injury to Broca 's area ; it is often the case that lesions in specific brain areas cause specific , dissociable symptoms , although case studies show there is not always a one - to - one mapping between lesion location and aphasic symptoms . The correlation between damage to certain specific brain areas ( usually in the left hemisphere ) and the development of specific types of aphasia makes it possible to deduce ( albeit very roughly ) the location of a suspected brain lesion based only on the presence ( and severity ) of a certain type of aphasia , though this is complicated by the possibility that a patient may have damage to a number of brain areas and may exhibit symptoms of more than one type of aphasia . The examination of lesion data in order to deduce which brain areas are essential in the normal functioning of certain aspects of cognition is called the deficit - lesion method ; this method is especially important in the branch of neuroscience known as aphasiology . Cognitive science - to be specific , cognitive neuropsychology - are branches of neuroscience that also make extensive use of the deficit - lesion method . </P>
<P> In the classical sense , expressive aphasia is the result of injury to Broca 's area ; it is often the case that lesions in specific brain areas cause specific , dissociable symptoms , although case studies show there is not always a one - to - one mapping between lesion location and aphasic symptoms . The correlation between damage to certain specific brain areas ( usually in the left hemisphere ) and the development of specific types of aphasia makes it possible to deduce ( albeit very roughly ) the location of a suspected brain lesion based only on the presence ( and severity ) of a certain type of aphasia , though this is complicated by the possibility that a patient may have damage to a number of brain areas and may exhibit symptoms of more than one type of aphasia . The examination of lesion data in order to deduce which brain areas are essential in the normal functioning of certain aspects of cognition is called the deficit - lesion method ; this method is especially important in the branch of neuroscience known as aphasiology . Cognitive science - to be specific , cognitive neuropsychology - are branches of neuroscience that also make extensive use of the deficit - lesion method . </P>
what problem does damage to broca area cause
what problem does damage to broca area cause
aphasia
aphasia