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  A novel multi-word paradigm for investigating semantic context effects in language production

van Scherpenberg, C., Abdel Rahman, R., & Obrig, H. (2020). A novel multi-word paradigm for investigating semantic context effects in language production. PLoS One, 15(4): e0230439. doi:10.1371/journal.pone.0230439.

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 Creators:
van Scherpenberg, Cornelia1, 2, 3, Author              
Abdel Rahman, Rasha1, 4, Author
Obrig, Hellmuth1, 2, 3, Author              
Affiliations:
1Berlin School of Mind and Brain, Humboldt University Berlin, Germany, ou_persistent22              
2Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634549              
3Clinic for Cognitive Neurology, University of Leipzig, Germany, ou_persistent22              
4Department of Neurocognitive Psychology, Humboldt University Berlin, Germany, ou_persistent22              

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 Abstract: Semantic context modulates precision and speed of language production. Using different experimental designs including the Picture-Word-Interference (PWI) paradigm, it has consistently been shown that categorically related distractor words (e.g., cat) inhibit retrieval of the target picture name (dog). Here we introduce a novel variant of the PWI paradigm in which we present 8 words prior to a to be named target picture. Within this set, the number of words categorically related was varied between 3 and 5, and the picture to be named was either related or unrelated to the respective category. To disentangle interacting effects of semantic context we combined different naming paradigms manipulating the number of competitors and assessing the effect of repeated naming instances. Evaluating processing of the cohort by eye-tracking provided us with a metric of the (implicit) recognition of the semantic cohort. Results replicate the interference effect in that overall naming of pictures categorically related to the distractor set was slower compared to unrelated pictures. However, interference did not increase with increasing number of distractors. Tracking this effect across naming repetitions, we found that interference is prominent at the first naming instance of every picture only, whereby it is stable across distractor conditions, but dissipates across the experiment. Regarding eye-tracking our data show that participants fixated longer on semantically related items, indicating the identification of the lexico-semantic cohort. Our findings confirm the validity of the novel paradigm and indicate that besides interference during first exposure, repeated exposure to the semantic context may facilitate picture naming and counteract lexical interference.

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Language(s): eng - English
 Dates: 2019-07-192020-02-292020-04-10
 Publication Status: Published online
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 Rev. Type: -
 Identifiers: DOI: 10.1371/journal.pone.0230439
Other: eCollection 2020
PMID: 32275715
PMC: PMC7147796
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Title: PLoS One
Source Genre: Journal
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Publ. Info: San Francisco, CA : Public Library of Science
Pages: - Volume / Issue: 15 (4) Sequence Number: e0230439 Start / End Page: - Identifier: ISSN: 1932-6203
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000277850