Profiles of Leading Women Scientists on AcademiaNet.
Search among the members of the Leopoldina for experts in specific fields or research topics.
Year of election: | 2000 |
Section: | Psychology and Cognitive Sciences |
City: | Leipzig |
Country: | Germany |
Research Priorities: Cognitive science, psycholinguistics and neurolinguistics, language development, language architecture, temporal structure of language processing
Angela D. Friederici is a German linguist, psychologist and neuroscientist. She explores how humans learn languages and how language is represented in the brain on multiple levels. The scientist uses various illustrative methods for this, such as functional magnetic resonance imaging (fMRI), in order to understand how the brain processes speech information. Her research is particularly focused on the role of the Broca and Wernicke areas in the speech process and the interaction between these two brain regions.
Together with her working group, Angela D. Friederici also characterised the special role of the arcuate fasciculus, a nerve fibre bundle connecting the upper temporal lobe to the Broca area. Both of these structures play a major role in processing grammar, while the Wernicke area is responsible for language comprehension. In another experiment, the researchers investigated how many myelin layers were wrapped around the nerve endings of the arcuate fasciculus, They found that during development the degree of myelination of the arcuate fasciculus correlates with the ability to process grammatically complex sentences. The findings support the idea that language capabilities are acquired at intervals in the brain maturation phase spanning childhood and adolescence.
Angela Friederici’s research showed that the arcuate fasciculus is more pronounced in all adult brains and varies minimally depending on the language world in which a person grows up. This conclusion supports the linguist Noam Chomsky’s concept that there is an innate universal system for grammar. These fibre connections are much less pronounced in monkeys. While chimpanzees and macaques can learn words, they cannot form phrase-like combinations.
The pronounced arcuate fasciculus could also be the reason why humans are especially successful at understanding what others think and how they might react, an ability known as “Theory of Mind” which is acquired in early childhood.
Angela D. Friederici also investigates the genetic foundations of normal language development in order to analyse disorders of these complex processes. In doing so the scientist tracks both individual genes as well as gene networks in order to understand the complexity of speech development.
The role of experiences during language development is also a focus. She researches how children’s language acquisition is influenced by the interaction with their environment and their experiences. In this respect Angela D. Friederici is also interested in how children acquire language in multilingual surroundings.
Her multi-faceted research has significantly contributed to a deeper understanding of the complex interactions between the genetic, epigenetic and environmental factors which form the long process of language acquisition. Her research also lays the foundation for a better understanding of language disorders and possible approaches to counteract them. By means of her interdisciplinary approach as a linguist, psychologist and neuroscientist, Angela D. Friederici has successfully managed to bridge the gap between the humanities and natural science.