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Full-Text Articles in American Sign Language
Neural Associations Between Fingerspelling, Print, And Signs: An Erp Priming Study With Deaf Readers, Brittany Lee, Sofia E. Ortega, Priscilla M. Martinez, Katherine J. Midgley, Phillip J. Holcomb, Karen Emmorey
Neural Associations Between Fingerspelling, Print, And Signs: An Erp Priming Study With Deaf Readers, Brittany Lee, Sofia E. Ortega, Priscilla M. Martinez, Katherine J. Midgley, Phillip J. Holcomb, Karen Emmorey
Communication Sciences and Disorders Faculty Articles and Research
Fingerspelling is a leading predictor of reading ability for deaf people who use a signed language, but few neuroimaging studies have examined how it supports reading. We used event-related potentials to investigate how fingerspelled words prime printed words. Twenty-four skilled deaf adult readers completed a Go/No-Go task while viewing printed English word targets following related and unrelated primes in one of three conditions: printed English words, American Sign Language (ASL) signs, and fingerspelled words. N400 priming effects were strong across all three conditions. Early N400 effects were similar for printed word primes and fingerspelled word primes, suggesting shared orthographic representations. …
Asymmetric Event-Related Potential Priming Effects Between English Letters And American Sign Language Fingerspelling Fonts, Zed Sevcikova Sehyr, Katherine J. Midgley, Karen Emmory, Phillip J. Holcomb
Asymmetric Event-Related Potential Priming Effects Between English Letters And American Sign Language Fingerspelling Fonts, Zed Sevcikova Sehyr, Katherine J. Midgley, Karen Emmory, Phillip J. Holcomb
Communication Sciences and Disorders Faculty Articles and Research
Letter recognition plays an important role in reading and follows different phases of processing, from early visual feature detection to the access of abstract letter representations. Deaf ASL–English bilinguals experience orthography in two forms: English letters and fingerspelling. However, the neurobiological nature of fingerspelling representations, and the relationship between the two orthographies, remains unexplored. We examined the temporal dynamics of single English letter and ASL fingerspelling font processing in an unmasked priming paradigm with centrally presented targets for 200 ms preceded by 100 ms primes. Event-related brain potentials were recorded while participants performed a probe detection task. Experiment 1 examined …
Unique N170 Signatures To Words And Faces In Deaf Asl Signers Reflect Experience-Specific Adaptations During Early Visual Processing, Zed Sevcikova Sehyr, Katherine J. Midgley, Phillipp J. Holcomb, Karen Emmorey, David C. Plaut, Marlene Behrmann
Unique N170 Signatures To Words And Faces In Deaf Asl Signers Reflect Experience-Specific Adaptations During Early Visual Processing, Zed Sevcikova Sehyr, Katherine J. Midgley, Phillipp J. Holcomb, Karen Emmorey, David C. Plaut, Marlene Behrmann
Communication Sciences and Disorders Faculty Articles and Research
Previous studies with deaf adults reported reduced N170 waveform asymmetry to visual words, a finding attributed to reduced phonological mapping in left-hemisphere temporal regions compared to hearing adults. An open question remains whether this pattern indeed results from reduced phonological processing or from general neurobiological adaptations in visual processing of deaf individuals. Deaf ASL signers and hearing nonsigners performed a same-different discrimination task with visually presented words, faces, or cars, while scalp EEG time-locked to the onset of the first item in each pair was recorded. For word recognition, the typical left-lateralized N170 in hearing participants and reduced left-sided asymmetry …