Connections between Fingerspelling and Print: The Impact of Working Memory and Temporal Dynamics on Lexical Activation

Abstract

Recently there has been a renewed interest in characterizing the role of fingerspelling for deaf readers. The present study takes a step back and creates a theoretical foundation for investigating similarities between fingerspelling and print decoding in hearing signers. In this way, we can probe the constraints of temporal processing and memory on L1 orthography and the processing of L2 fingerspelling. Using a cross-modal priming paradigm, the role of orthography and phonology in print and fingerspelling word recognition was investigated. Results indicate significant inhibition in target retrieval when the prime was fingerspelled but not when it was presented in print. It was hypothesized that inhibition was due to either recoding or prime temporal dynamics. Hearing nonsigners were tested with serially or simultaneously presented print to determine the role of recoding and temporal dynamics. The results suggest that: (1) difficulties in processing fingerspelling for L2 learners might arise from recoding back into an L1 orthographic representation; (2) working memory abilities may reduce inhibition caused by recoding in L2 learners; (3) serial presentation of an orthographic code, either manual or visual, reduces priming effects; and (4) letter position differences provide evidence of depletion of activation over time.