Cited by 109Neurobiology of Language and BilingualismVoice and Speech DisordersNeurological and metabolic disorders

Re-establishing Broca's initial findings

Open access
Richardson, Jessica D., Fillmore, Paul, Rorden, Chris, LaPointe, Leonard L., Fridriksson, Julius·2012·Brain and Language

Abstract

The importance of the left inferior pre-frontal cortex (LIPC) for speech production was first popularized by Paul Broca, providing a cornerstone of behavioral neurology and laying the foundation for future research examining brain-behavior relationships. Although Broca's findings were rigorously challenged, comprehensive contradictory evidence was not published until 130years later. This evidence suggested that damage to left anterior insula was actually the best predictor of motor speech impairment. Using high-resolution structural magnetic resonance imaging (MRI) in patients with chronic stroke, we reveal that LIPC involvement more accurately predicts acquired motor speech impairment than insula damage. Perfusion-weighted MRI provides complementary evidence, highlighting how damage to left inferior pre-frontal gyrus often includes insula involvement, and vice versa. Our findings suggest that Broca's initial conclusions associating acquired motor speech impairment with LIPC damage remain valid nearly 150years after his initial report on this issue.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/j.bandl.2012.08.007

Cites

31 of 31 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

3 of the 34 references couldn’t be matched to a known paper.

Research works printed but not linked: 4

  1. Auburtin E Reprise de la discussion sur la forme et le volume du cerveau Bulletin of the Society of Anthropology 1861 2 209 220
  2. Broca P Remarques sur le sie‘ge de la faculte’ du langage articulé: Suivies d’une observation d’aphemie The Bulletin of the Society of Anatomy (Paris) 1861 6 330 357
  3. Broca P Localisation des fonctions cerebrales: Sie‘e du langage articule’ The Bulletin of the Society of Anthropology (Paris) 1863 4 200 203
  4. Broca P On the location of the faculty of articulate language in the left hemisphere of the brain The Bulletin of the Society of Anthropology 1865 6 337 393

Cited by

Sorted by citations

Authors
Richardson, J. D., Fillmore, P., Rorden, C., LaPointe, L. L., & Fridriksson, J.
Affiliations
  • University of South Carolina (US)
  • Florida State University (US)
Corresponding author
Richardson, Jessica D.
Venue
Brain and Language
Publisher
Elsevier BV
Published
2012-11
Volume
123
Issue
2
Pages
125-130
ISSN
0093-934X (ISSN-L)
OpenAlex
W2137728507
Cited by
109
References
34
Citations by year
2026: 1 · 2025: 4 · 2024: 5 · 2023: 9 · 2022: 39 · 2021: 6 · 2020: 5 · 2019: 2 · 2018: 7 · 2017: 6 · 2016: 2 · 2015: 9 · 2014: 7 · 2013: 5 · 2012: 1
FWCI
3.60
Type
journal article
Language
en
Open access
Locations
  • Brain and Language (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Scholar Commons (University of South Carolina) (submittedVersion)
Funders
National Institute on Deafness and Other Communication Disorders (R01DC008355, R01DC009571)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
  • Health Sciences › Medicine › Physiology › Voice and Speech Disorders
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Neurological and metabolic disorders
Keywords
Broca's area, motor speech disorders, chronic stroke, speech production, perfusion-weighted MRI, structural MRI, history of neurology, brain-behavior relationship
MeSH terms
Aphasia, Broca, Cerebrovascular Circulation, Frontal Lobe, Humans, Magnetic Resonance Imaging, Stroke

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review