Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Kóbor, Andrea, Horváth, Kata, Kardos, Zsófia, Takács, Ádám, Janacsek, Karolina, Csépe, Valéria, Nemeth, Dezso
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2019
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
_version_ 1783464500375060480
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
work_keys_str_mv AT koborandrea trackingtheimplicitacquisitionofnonadjacenttransitionalprobabilitiesbyerps
AT horvathkata trackingtheimplicitacquisitionofnonadjacenttransitionalprobabilitiesbyerps
AT kardoszsofia trackingtheimplicitacquisitionofnonadjacenttransitionalprobabilitiesbyerps
AT takacsadam trackingtheimplicitacquisitionofnonadjacenttransitionalprobabilitiesbyerps
AT janacsekkarolina trackingtheimplicitacquisitionofnonadjacenttransitionalprobabilitiesbyerps
AT csepevaleria trackingtheimplicitacquisitionofnonadjacenttransitionalprobabilitiesbyerps
AT nemethdezso trackingtheimplicitacquisitionofnonadjacenttransitionalprobabilitiesbyerps