Cited by 249Neurobiology of Language and BilingualismHemispheric Asymmetry in NeuroscienceLanguage Development and Disorders

Pathological switching between languages after frontal lesions in a bilingual patient

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Fabbro, F.·2000·Journal of Neurology, Neurosurgery & Psychiatry

Abstract

Cerebral lesions may alter the capability of bilingual subjects to separate their languages and use each language in appropriate contexts. Patients who show pathological mixing intermingle different languages within a single utterance. By contrast, patients affected by pathological switching alternate their languages across different utterances (a self contained segment of speech that stands on its own and conveys its own independent meaning). Cases of pathological mixing have been reported after lesions to the left temporoparietal lobe. By contrast, information on the neural loci involved in pathological switching is scarce. In this paper a description is given for the first time of a patient with a lesion to the left anterior cingulate and to the frontal lobe-also marginally involving the right anterior cingulate area-who presented with pathological switching between languages in the absence of any other linguistic impairment. Thus, unlike pathological mixing that typically occurs in bilingual aphasia, pathological switching may be independent of language mechanisms.

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  • Studies of patients reveal intrusions from the non-target language or inappropriate switching between languages in bilinguals.

    “patient studies showing intrusions from the irrelevant language or inappropriate language switches [53]”

    From Bilingualism: consequences for mind and brain (2012) · cites this paper as [53]

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  1. Lebrun Y. Polyglotte Reaktionen. Neurolinguistik 1991;5:1- 9.

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Authors
Fabbro, F.
Affiliations
University of Udine (IT)
Corresponding author
Fabbro, F.
Venue
Journal of Neurology, Neurosurgery & Psychiatry
Publisher
BMJ
Published
2000-05-01
Volume
68
Issue
5
Pages
650-652
ISSN
0022-3050 (ISSN-L)
OpenAlex
W2148282681
Cited by
248
References
24
Citations by year
2026: 3 · 2025: 12 · 2024: 6 · 2023: 6 · 2022: 7 · 2021: 7 · 2020: 7 · 2019: 34 · 2018: 42 · 2017: 2 · 2016: 8 · 2015: 7 · 2014: 7 · 2013: 9 · 2012: 9
FWCI
1.32
Type
journal article
Language
en
Open access
Locations
  • Journal of Neurology Neurosurgery & Psychiatry (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • IRIS Research product catalog (Sapienza University of Rome) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Hemispheric Asymmetry in Neuroscience
  • Social Sciences › Psychology › Developmental and Educational Psychology › Language Development and Disorders
Keywords
bilingualism, language switching, frontal lobe lesions, anterior cingulate cortex, bilingual aphasia, language separation
MeSH terms
Aphasia, Brain Diseases, Frontal Lobe, Gyrus Cinguli, Humans, Language Disorders, Magnetic Resonance Imaging, Male, Middle Aged, Multilingualism

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