1.8 LATERALIZATION & MODULARITY

1.8 LATERALIZATION & MODULARITY

1. NEUROLINGUISTS

   • Researchers who examine brain circuitry
   • Determine which neurological processes are involved in language learning, language production, and language comprehension.
   • They collected data by dissecting the brain of deceased patients

2. TECHNOLOGY

   • Neurolinguists have been able to study the brain directly and observe “in real time” the processes engaged in language production and comprehension.
     • PET (Positron Emission Tomography)
       • language is lateralized to the left hemisphere.
         • Wernicke’s aphasics suffer from speaking fluently but without making any sense and are also unable to comprehend language.
         • Broca’s aphasics suffer from agrammatism, an inability to produce wellformed sentences, and lose the use of function words.
     • MRI (Magnetic Resonance Imaging)

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