On “Local Theory” Neutrality with Respect to “Meta-Theories” and Data from a Diversity of “Native Speakers”, Including Heritage Speaker Bilinguals: Commentary on Hulstijn (2024)

This commentary critically engages with Hulstijn’s revised Basic Language Cognition (BLC) Theory, which aims to enhance explanatory power and falsifiability regarding individual differences (IDs) in language proficiency across native and non-native speakers. While commending BLC Theory’s emphasis on...

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Main Authors: Jason Rothman, Fatih Bayram, Jiuzhou Hao, Patrick Rebuschat
Format: Article
Language:English
Published: MDPI AG 2025-04-01
Series:Languages
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Online Access:https://www.mdpi.com/2226-471X/10/5/98
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author Jason Rothman
Fatih Bayram
Jiuzhou Hao
Patrick Rebuschat
author_facet Jason Rothman
Fatih Bayram
Jiuzhou Hao
Patrick Rebuschat
author_sort Jason Rothman
collection DOAJ
description This commentary critically engages with Hulstijn’s revised Basic Language Cognition (BLC) Theory, which aims to enhance explanatory power and falsifiability regarding individual differences (IDs) in language proficiency across native and non-native speakers. While commending BLC Theory’s emphasis on separating oral and written language cognition, we raise two key concerns. First, we question the theory’s exclusive alignment with usage-based approaches, arguing that its core constructs are, in principle, compatible with multiple meta-theoretical frameworks, including generative ones. As such, BLC Theory should remain neutral to maximize its cross-paradigmatic utility. Second, we address the theory’s treatment of heritage speaker bilinguals (HSs), particularly the implication that they may not typically acquire BLC. We contend that this position overlooks robust empirical evidence demonstrating that HSs develop systematic, rule-governed grammars influenced by their individual input and usage conditions. Moreover, we highlight how IDs among HSs can provide a valuable testing ground for BLC Theory, particularly regarding the role of input and literacy. We conclude that embracing theory neutrality and integrating diverse speaker data—especially from heritage bilinguals—can enhance BLC Theory’s generalizability, empirical relevance, and theoretical utility across language acquisition research.
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spelling doaj-art-5ffd60f2fadb41dc9c58090679a8b6aa2025-08-20T03:47:54ZengMDPI AGLanguages2226-471X2025-04-011059810.3390/languages10050098On “Local Theory” Neutrality with Respect to “Meta-Theories” and Data from a Diversity of “Native Speakers”, Including Heritage Speaker Bilinguals: Commentary on Hulstijn (2024)Jason Rothman0Fatih Bayram1Jiuzhou Hao2Patrick Rebuschat3Department of Linguistics and English Language, Lancaster University, Lancaster LA1 4Y, UKDepartment of Linguistics and English Language, Lancaster University, Lancaster LA1 4Y, UKDepartment of Language and Culture, UiT The Arctic University of Norway, 9037 Tromsø, NorwayDepartment of Linguistics and English Language, Lancaster University, Lancaster LA1 4Y, UKThis commentary critically engages with Hulstijn’s revised Basic Language Cognition (BLC) Theory, which aims to enhance explanatory power and falsifiability regarding individual differences (IDs) in language proficiency across native and non-native speakers. While commending BLC Theory’s emphasis on separating oral and written language cognition, we raise two key concerns. First, we question the theory’s exclusive alignment with usage-based approaches, arguing that its core constructs are, in principle, compatible with multiple meta-theoretical frameworks, including generative ones. As such, BLC Theory should remain neutral to maximize its cross-paradigmatic utility. Second, we address the theory’s treatment of heritage speaker bilinguals (HSs), particularly the implication that they may not typically acquire BLC. We contend that this position overlooks robust empirical evidence demonstrating that HSs develop systematic, rule-governed grammars influenced by their individual input and usage conditions. Moreover, we highlight how IDs among HSs can provide a valuable testing ground for BLC Theory, particularly regarding the role of input and literacy. We conclude that embracing theory neutrality and integrating diverse speaker data—especially from heritage bilinguals—can enhance BLC Theory’s generalizability, empirical relevance, and theoretical utility across language acquisition research.https://www.mdpi.com/2226-471X/10/5/98heritage language bilingualismindividual differencesnative speakersnon-native speakersBLC theory
spellingShingle Jason Rothman
Fatih Bayram
Jiuzhou Hao
Patrick Rebuschat
On “Local Theory” Neutrality with Respect to “Meta-Theories” and Data from a Diversity of “Native Speakers”, Including Heritage Speaker Bilinguals: Commentary on Hulstijn (2024)
Languages
heritage language bilingualism
individual differences
native speakers
non-native speakers
BLC theory
title On “Local Theory” Neutrality with Respect to “Meta-Theories” and Data from a Diversity of “Native Speakers”, Including Heritage Speaker Bilinguals: Commentary on Hulstijn (2024)
title_full On “Local Theory” Neutrality with Respect to “Meta-Theories” and Data from a Diversity of “Native Speakers”, Including Heritage Speaker Bilinguals: Commentary on Hulstijn (2024)
title_fullStr On “Local Theory” Neutrality with Respect to “Meta-Theories” and Data from a Diversity of “Native Speakers”, Including Heritage Speaker Bilinguals: Commentary on Hulstijn (2024)
title_full_unstemmed On “Local Theory” Neutrality with Respect to “Meta-Theories” and Data from a Diversity of “Native Speakers”, Including Heritage Speaker Bilinguals: Commentary on Hulstijn (2024)
title_short On “Local Theory” Neutrality with Respect to “Meta-Theories” and Data from a Diversity of “Native Speakers”, Including Heritage Speaker Bilinguals: Commentary on Hulstijn (2024)
title_sort on local theory neutrality with respect to meta theories and data from a diversity of native speakers including heritage speaker bilinguals commentary on hulstijn 2024
topic heritage language bilingualism
individual differences
native speakers
non-native speakers
BLC theory
url https://www.mdpi.com/2226-471X/10/5/98
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