Online build-up of neocortical memory traces for spoken words is facilitated by novel semantic associations: MEG data

Alina Leminen, Eino Partanen, Andreas Højlund, Mikkel Wallentin, Yury Shtyrov

Tutkimustuotos: KonferenssimateriaalitKonferenssiabstraktiTutkimusvertaisarvioitu

Kuvaus

Recent research has shown that the brain is capable of a rapid build-up of novel cortical memory traces for words during mere perceptual exposure to new lexical items. This has been shown as an online (within minutes) increase in the amplitude of electrophysiological responses to new word forms even when they have no specific meaning attached and are not attended to or actively rehearsed by the learners. However, the operation of this fast cortical language-learning mechanism in online acquisition of word meaning has not been sufficiently investigated yet. To address immediate plasticity caused by rapid learning of new words, we presented our participants with novel word forms in a word-learning task taking place during a short (10 minutes, 20 presentations of each item) magnetoencephalography (MEG) recording session. Novel word forms were either learned perceptually through auditory exposure only or were assigned a clear semantic reference using a word-picture association task, in which they were presented in conjunction with images of novel objects. Real familiar words were used as control stimuli. MEG responses were scrutinized as a moving average of three trials for each stimulus type (i.e. real words, perceptually learned novel word forms and semantically learned novel word forms). The results show that, already after approximately five presentations of each stimulus, novel stimuli learnt through semantic association demonstrated stronger activation over the left perisylvian cortices than perceptually acquired word forms that lacked semantic reference. Perceptual items also demonstrated a linear learning-related amplitude increase, but at a much slower pace, spread across the 10-minute recording session. This result suggests a more efficient process of online novel word memory trace build-up in the presence of semantic reference. This could be due to more widespread concurrent brain activations resulting in a more robust associative learning ultimately creating novel memory circuits. Our results confirm rapid formation of memory traces for novel words over a course of a short exposure and suggest facilitatory effects of acquisition of novel semantics on the neocortical memory trace formation.

Alkuperäiskielienglanti
TilaJulkaistu - 22 elokuuta 2019
OKM-julkaisutyyppiEi sovellu
TapahtumaSociety for the Neurobiology of Language Annual Meeting - Helsinki, Helsinki, Suomi
Kesto: 20 elokuuta 201922 elokuuta 2019
https://www.neurolang.org/

Konferenssi

KonferenssiSociety for the Neurobiology of Language Annual Meeting
LyhennettäSNL
MaaSuomi
KaupunkiHelsinki
Ajanjakso20/08/201922/08/2019
www-osoite

Tieteenalat

  • 6162 Kognitiotiede

Lainaa tätä

Leminen, A., Partanen, E., Højlund, A., Wallentin, M., & Shtyrov, Y. (2019). Online build-up of neocortical memory traces for spoken words is facilitated by novel semantic associations: MEG data. Abstraktin lähde: Society for the Neurobiology of Language Annual Meeting, Helsinki, Suomi.
Leminen, Alina ; Partanen, Eino ; Højlund, Andreas ; Wallentin, Mikkel ; Shtyrov, Yury. / Online build-up of neocortical memory traces for spoken words is facilitated by novel semantic associations: MEG data. Abstraktin lähde: Society for the Neurobiology of Language Annual Meeting, Helsinki, Suomi.
@conference{0366b7dd67624fd98a7a4ce695ab4358,
title = "Online build-up of neocortical memory traces for spoken words is facilitated by novel semantic associations: MEG data",
abstract = "Recent research has shown that the brain is capable of a rapid build-up of novel cortical memory traces for words during mere perceptual exposure to new lexical items. This has been shown as an online (within minutes) increase in the amplitude of electrophysiological responses to new word forms even when they have no specific meaning attached and are not attended to or actively rehearsed by the learners. However, the operation of this fast cortical language-learning mechanism in online acquisition of word meaning has not been sufficiently investigated yet. To address immediate plasticity caused by rapid learning of new words, we presented our participants with novel word forms in a word-learning task taking place during a short (10 minutes, 20 presentations of each item) magnetoencephalography (MEG) recording session. Novel word forms were either learned perceptually through auditory exposure only or were assigned a clear semantic reference using a word-picture association task, in which they were presented in conjunction with images of novel objects. Real familiar words were used as control stimuli. MEG responses were scrutinized as a moving average of three trials for each stimulus type (i.e. real words, perceptually learned novel word forms and semantically learned novel word forms). The results show that, already after approximately five presentations of each stimulus, novel stimuli learnt through semantic association demonstrated stronger activation over the left perisylvian cortices than perceptually acquired word forms that lacked semantic reference. Perceptual items also demonstrated a linear learning-related amplitude increase, but at a much slower pace, spread across the 10-minute recording session. This result suggests a more efficient process of online novel word memory trace build-up in the presence of semantic reference. This could be due to more widespread concurrent brain activations resulting in a more robust associative learning ultimately creating novel memory circuits. Our results confirm rapid formation of memory traces for novel words over a course of a short exposure and suggest facilitatory effects of acquisition of novel semantics on the neocortical memory trace formation.",
keywords = "6162 Cognitive science",
author = "Alina Leminen and Eino Partanen and Andreas H{\o}jlund and Mikkel Wallentin and Yury Shtyrov",
year = "2019",
month = "8",
day = "22",
language = "English",
note = "Society for the Neurobiology of Language Annual Meeting, SNL ; Conference date: 20-08-2019 Through 22-08-2019",
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Leminen, A, Partanen, E, Højlund, A, Wallentin, M & Shtyrov, Y 2019, 'Online build-up of neocortical memory traces for spoken words is facilitated by novel semantic associations: MEG data' Society for the Neurobiology of Language Annual Meeting, Helsinki, Suomi, 20/08/2019 - 22/08/2019, .

Online build-up of neocortical memory traces for spoken words is facilitated by novel semantic associations: MEG data. / Leminen, Alina; Partanen, Eino; Højlund, Andreas; Wallentin, Mikkel; Shtyrov, Yury.

2019. Abstraktin lähde: Society for the Neurobiology of Language Annual Meeting, Helsinki, Suomi.

Tutkimustuotos: KonferenssimateriaalitKonferenssiabstraktiTutkimusvertaisarvioitu

TY - CONF

T1 - Online build-up of neocortical memory traces for spoken words is facilitated by novel semantic associations: MEG data

AU - Leminen, Alina

AU - Partanen, Eino

AU - Højlund, Andreas

AU - Wallentin, Mikkel

AU - Shtyrov, Yury

PY - 2019/8/22

Y1 - 2019/8/22

N2 - Recent research has shown that the brain is capable of a rapid build-up of novel cortical memory traces for words during mere perceptual exposure to new lexical items. This has been shown as an online (within minutes) increase in the amplitude of electrophysiological responses to new word forms even when they have no specific meaning attached and are not attended to or actively rehearsed by the learners. However, the operation of this fast cortical language-learning mechanism in online acquisition of word meaning has not been sufficiently investigated yet. To address immediate plasticity caused by rapid learning of new words, we presented our participants with novel word forms in a word-learning task taking place during a short (10 minutes, 20 presentations of each item) magnetoencephalography (MEG) recording session. Novel word forms were either learned perceptually through auditory exposure only or were assigned a clear semantic reference using a word-picture association task, in which they were presented in conjunction with images of novel objects. Real familiar words were used as control stimuli. MEG responses were scrutinized as a moving average of three trials for each stimulus type (i.e. real words, perceptually learned novel word forms and semantically learned novel word forms). The results show that, already after approximately five presentations of each stimulus, novel stimuli learnt through semantic association demonstrated stronger activation over the left perisylvian cortices than perceptually acquired word forms that lacked semantic reference. Perceptual items also demonstrated a linear learning-related amplitude increase, but at a much slower pace, spread across the 10-minute recording session. This result suggests a more efficient process of online novel word memory trace build-up in the presence of semantic reference. This could be due to more widespread concurrent brain activations resulting in a more robust associative learning ultimately creating novel memory circuits. Our results confirm rapid formation of memory traces for novel words over a course of a short exposure and suggest facilitatory effects of acquisition of novel semantics on the neocortical memory trace formation.

AB - Recent research has shown that the brain is capable of a rapid build-up of novel cortical memory traces for words during mere perceptual exposure to new lexical items. This has been shown as an online (within minutes) increase in the amplitude of electrophysiological responses to new word forms even when they have no specific meaning attached and are not attended to or actively rehearsed by the learners. However, the operation of this fast cortical language-learning mechanism in online acquisition of word meaning has not been sufficiently investigated yet. To address immediate plasticity caused by rapid learning of new words, we presented our participants with novel word forms in a word-learning task taking place during a short (10 minutes, 20 presentations of each item) magnetoencephalography (MEG) recording session. Novel word forms were either learned perceptually through auditory exposure only or were assigned a clear semantic reference using a word-picture association task, in which they were presented in conjunction with images of novel objects. Real familiar words were used as control stimuli. MEG responses were scrutinized as a moving average of three trials for each stimulus type (i.e. real words, perceptually learned novel word forms and semantically learned novel word forms). The results show that, already after approximately five presentations of each stimulus, novel stimuli learnt through semantic association demonstrated stronger activation over the left perisylvian cortices than perceptually acquired word forms that lacked semantic reference. Perceptual items also demonstrated a linear learning-related amplitude increase, but at a much slower pace, spread across the 10-minute recording session. This result suggests a more efficient process of online novel word memory trace build-up in the presence of semantic reference. This could be due to more widespread concurrent brain activations resulting in a more robust associative learning ultimately creating novel memory circuits. Our results confirm rapid formation of memory traces for novel words over a course of a short exposure and suggest facilitatory effects of acquisition of novel semantics on the neocortical memory trace formation.

KW - 6162 Cognitive science

M3 - Abstract

ER -

Leminen A, Partanen E, Højlund A, Wallentin M, Shtyrov Y. Online build-up of neocortical memory traces for spoken words is facilitated by novel semantic associations: MEG data. 2019. Abstraktin lähde: Society for the Neurobiology of Language Annual Meeting, Helsinki, Suomi.