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Medicine and Health Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

2010

Theses and Dissertations

Event-related potentials

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Full-Text Articles in Medicine and Health Sciences

The Elan Event-Related Potential In Children 5 To 12 Years Of Age, Melissa Crandall Jun 2010

The Elan Event-Related Potential In Children 5 To 12 Years Of Age, Melissa Crandall

Theses and Dissertations

The examination of Event Related Potentials during language processing tasks provides valuable information of how the brain processes language over time. In the current study, the development of the early left anterior negativity (ELAN) was analyzed in young children. Previous research has described the ELAN as a negative waveform elicited during syntactic processing between 200 and 500 ms post linguistic stimuli. Thirty children from 5 to 12 years of age listened to sentences that were linguistically correct, syntactically incorrect, or semantically incorrect. Sentences were presented for right monaural, left monaural, and binaural ear conditions to determine possible differences related to …


The N400 Event-Related Potential In Children Across Sentence Type And Ear Condition, Laurie Anne Hansen Mar 2010

The N400 Event-Related Potential In Children Across Sentence Type And Ear Condition, Laurie Anne Hansen

Theses and Dissertations

This study investigated the neurophysiology of semantic language processing in children, ages 5 to 12 years. A well-established marker of semantic processing, the N400 event related potential (ERP), was analyzed within and across child age groups. Child N400s were recorded in response to correct sentences, semantically incorrect sentences, and syntactically incorrect sentences. N400s were also recorded across ear condition to examine potential processing differences. Children across all age groups consistently demonstrated N400s in the semantic error condition. N400s were also regularly observed in the syntactic error condition; especially, for younger children. Younger children also demonstrated N400s even in response to …