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Tracking the implicit acquisition of nonadjacent transitional probabilities by ERPs
The implicit acquisition of complex probabilistic regularities has been found to be crucial in numerous automatized cognitive abilities, including language processing and associative learning. However, it has not been completely elucidated how the implicit extraction of second-order nonadjacent tran...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer US
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6823303/ https://www.ncbi.nlm.nih.gov/pubmed/31236822 http://dx.doi.org/10.3758/s13421-019-00949-x |
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author | Kóbor, Andrea Horváth, Kata Kardos, Zsófia Takács, Ádám Janacsek, Karolina Csépe, Valéria Nemeth, Dezso |
author_facet | Kóbor, Andrea Horváth, Kata Kardos, Zsófia Takács, Ádám Janacsek, Karolina Csépe, Valéria Nemeth, Dezso |
author_sort | Kóbor, Andrea |
collection | PubMed |
description | The implicit acquisition of complex probabilistic regularities has been found to be crucial in numerous automatized cognitive abilities, including language processing and associative learning. However, it has not been completely elucidated how the implicit extraction of second-order nonadjacent transitional probabilities is reflected by neurophysiological processes. Therefore, this study investigated the sensitivity of event-related brain potentials (ERPs) to these probabilistic regularities embedded in a sequence of visual stimuli without providing explicit information on the structure of the stimulus stream. Healthy young adults (N = 32) performed a four-choice RT task that included a sequential regularity between nonadjacent trials yielding a complex transitional probability structure. ERPs were measured relative to both stimulus and response onset. RTs indicated the rapid acquisition of the sequential regularity and the transitional probabilities. The acquisition process was also tracked by the stimulus-locked and response-locked P3 component: The P3 peak was larger for the sequence than for the random stimuli, while the late P3 was larger for less probable than for more probable short-range relations among the random stimuli. According to the RT and P3 effects, sensitivity to the sequential regularity is assumed to be supported by the initial sensitivity to the transitional probabilities. These results suggest that stimulus–response contingencies on the probabilistic regularities of the ongoing stimulus context are implicitly mapped and constantly revised. Overall, this study (1) highlights the role of predictive processes during implicit memory formation, and (2) delineates a potential to gain further insight into the dynamics of implicit acquisition processes. |
format | Online Article Text |
id | pubmed-6823303 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Springer US |
record_format | MEDLINE/PubMed |
spelling | pubmed-68233032019-11-06 Tracking the implicit acquisition of nonadjacent transitional probabilities by ERPs Kóbor, Andrea Horváth, Kata Kardos, Zsófia Takács, Ádám Janacsek, Karolina Csépe, Valéria Nemeth, Dezso Mem Cognit Article The implicit acquisition of complex probabilistic regularities has been found to be crucial in numerous automatized cognitive abilities, including language processing and associative learning. However, it has not been completely elucidated how the implicit extraction of second-order nonadjacent transitional probabilities is reflected by neurophysiological processes. Therefore, this study investigated the sensitivity of event-related brain potentials (ERPs) to these probabilistic regularities embedded in a sequence of visual stimuli without providing explicit information on the structure of the stimulus stream. Healthy young adults (N = 32) performed a four-choice RT task that included a sequential regularity between nonadjacent trials yielding a complex transitional probability structure. ERPs were measured relative to both stimulus and response onset. RTs indicated the rapid acquisition of the sequential regularity and the transitional probabilities. The acquisition process was also tracked by the stimulus-locked and response-locked P3 component: The P3 peak was larger for the sequence than for the random stimuli, while the late P3 was larger for less probable than for more probable short-range relations among the random stimuli. According to the RT and P3 effects, sensitivity to the sequential regularity is assumed to be supported by the initial sensitivity to the transitional probabilities. These results suggest that stimulus–response contingencies on the probabilistic regularities of the ongoing stimulus context are implicitly mapped and constantly revised. Overall, this study (1) highlights the role of predictive processes during implicit memory formation, and (2) delineates a potential to gain further insight into the dynamics of implicit acquisition processes. Springer US 2019-06-24 2019 /pmc/articles/PMC6823303/ /pubmed/31236822 http://dx.doi.org/10.3758/s13421-019-00949-x Text en © The Author(s) 2019 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Article Kóbor, Andrea Horváth, Kata Kardos, Zsófia Takács, Ádám Janacsek, Karolina Csépe, Valéria Nemeth, Dezso Tracking the implicit acquisition of nonadjacent transitional probabilities by ERPs |
title | Tracking the implicit acquisition of nonadjacent transitional probabilities by ERPs |
title_full | Tracking the implicit acquisition of nonadjacent transitional probabilities by ERPs |
title_fullStr | Tracking the implicit acquisition of nonadjacent transitional probabilities by ERPs |
title_full_unstemmed | Tracking the implicit acquisition of nonadjacent transitional probabilities by ERPs |
title_short | Tracking the implicit acquisition of nonadjacent transitional probabilities by ERPs |
title_sort | tracking the implicit acquisition of nonadjacent transitional probabilities by erps |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6823303/ https://www.ncbi.nlm.nih.gov/pubmed/31236822 http://dx.doi.org/10.3758/s13421-019-00949-x |
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