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Origins of dissociations in the English past tense: A synthetic brain imaging model

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Origins of dissociations in the English past tense : A synthetic brain imaging model. / Westermann, Gert; Jones, Samuel.

In: Frontiers in Psychology, Vol. 12, 688908, 02.07.2021.

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@article{b8e8f7e07cfb42aca3a1753acf1ae868,
title = "Origins of dissociations in the English past tense: A synthetic brain imaging model",
abstract = "Brain imaging studies of English past tense inflection have found dissociations between regular and irregular verbs, but no coherent picture has emerged to explain how these dissociations arise. Here we use synthetic brain imaging on a neural network model to provide a mechanistic account of the origins of such dissociations. The model suggests that dissociations between regional activation patterns in verb inflection emerge in an adult processing system that has been shaped through experience-dependent structural brain development. Although these dissociations appear to be between regular and irregular verbs, they arise in the model from a combination of statistical properties including frequency, relationships to other verbs, and phonological complexity, without a causal role for regularity or semantics. These results are consistent with the notion that all inflections are produced in a single associative mechanism. The model generates predictions about the patterning of active brain regions for different verbs that can be tested in future imaging studies.",
keywords = "English past tense, connectionist modeling, synthetic brain imaging, experience-dependent brain development, verb inflection, verb morphology, neuroconstructivism",
author = "Gert Westermann and Samuel Jones",
year = "2021",
month = jul,
day = "2",
doi = "10.3389/fpsyg.2021.688908",
language = "English",
volume = "12",
journal = "Frontiers in Psychology",
issn = "1664-1078",
publisher = "Frontiers Media S.A.",

}

RIS

TY - JOUR

T1 - Origins of dissociations in the English past tense

T2 - A synthetic brain imaging model

AU - Westermann, Gert

AU - Jones, Samuel

PY - 2021/7/2

Y1 - 2021/7/2

N2 - Brain imaging studies of English past tense inflection have found dissociations between regular and irregular verbs, but no coherent picture has emerged to explain how these dissociations arise. Here we use synthetic brain imaging on a neural network model to provide a mechanistic account of the origins of such dissociations. The model suggests that dissociations between regional activation patterns in verb inflection emerge in an adult processing system that has been shaped through experience-dependent structural brain development. Although these dissociations appear to be between regular and irregular verbs, they arise in the model from a combination of statistical properties including frequency, relationships to other verbs, and phonological complexity, without a causal role for regularity or semantics. These results are consistent with the notion that all inflections are produced in a single associative mechanism. The model generates predictions about the patterning of active brain regions for different verbs that can be tested in future imaging studies.

AB - Brain imaging studies of English past tense inflection have found dissociations between regular and irregular verbs, but no coherent picture has emerged to explain how these dissociations arise. Here we use synthetic brain imaging on a neural network model to provide a mechanistic account of the origins of such dissociations. The model suggests that dissociations between regional activation patterns in verb inflection emerge in an adult processing system that has been shaped through experience-dependent structural brain development. Although these dissociations appear to be between regular and irregular verbs, they arise in the model from a combination of statistical properties including frequency, relationships to other verbs, and phonological complexity, without a causal role for regularity or semantics. These results are consistent with the notion that all inflections are produced in a single associative mechanism. The model generates predictions about the patterning of active brain regions for different verbs that can be tested in future imaging studies.

KW - English past tense

KW - connectionist modeling

KW - synthetic brain imaging

KW - experience-dependent brain development

KW - verb inflection

KW - verb morphology

KW - neuroconstructivism

U2 - 10.3389/fpsyg.2021.688908

DO - 10.3389/fpsyg.2021.688908

M3 - Journal article

VL - 12

JO - Frontiers in Psychology

JF - Frontiers in Psychology

SN - 1664-1078

M1 - 688908

ER -