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Cited by 23Medical and Biological SciencesAnatomy and Medical TechnologyNeurobiology of Language and Bilingualism

Reproducible sampling regimen for specific cortical regions: application to speech-associated areas

Harasty, J., Halliday, G.M., Kril, J.J.·1996·Journal of Neuroscience Methods
DOI 10.1016/0165-0270(96)00005-2
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Abstract

The variability in the external gyri pattern of human brains has made the identification of specific cortical areas difficult. Studies correlating cortical structure and function have not consistently controlled for this variability. The aim of the present study was to develop a reliable and reproducible regimen for sampling five speech-associated and one non-speech associated cortical region in the human brain. The gyri of interest were labelled using non-aqueous dye prior to coronal slicing of brains at 3 mm intervals. Using the labelled gyri, a set of internal brain landmarks was established to aid in sampling one block of each cortical region of interest. The position of each internal landmark was determined as a percentage of the total brain length and breadth. The variability in the position of each internal landmark was investigated using analysis of variance and found to be consistent in three dimensions in all cases. The correlation of the sampled cortical region to the internal landmark was consistent in different cases with point to point agreement of 100%. This contrasts with the variability between cases in external gyri features. The sampled region was tested to determine cytoarchitectural variability by measuring the depth of each cortical layer. This technique found that the same cytoarchitectural regions were sampled in each case. As expected, these regions were distinguishable by the significant difference in the depth of different cortical layers. Accurate identification of both the external gyri and internal landmarks occurred with interrater point to point agreement of 90-100%.

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Crossref · 10.1016/0165-0270(96)00005-2

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  • The analysis of the receptor distribution patterns using hierarchical clustering disagrees with concepts that attributed Broca's region solely to either area 44 or area 45, or to a cortical assembly combining areas 44 and 45 with area 47.

    “It disagrees with those concepts, which attributed Broca's region solely to either area 44 [50] or area 45 [51], or to a cortical assembly combining areas 44 and 45 with area 47 [52].”

    From Broca's Region: Novel Organizational Principles and Multiple Receptor Mapping (2010) · cites this paper as [52]

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Authors
Harasty, J., Halliday, G. M., & Kril, J. J.
Affiliations
The University of Sydney (AU)
Corresponding author
Harasty, J.
ORCID
Venue
Journal of Neuroscience Methods
Publisher
Elsevier BV
Published
1996-07
Volume
67
Issue
1
Pages
43-51
ISSN
0165-0270 (ISSN-L)
DOI
10.1016/0165-0270(96)00005-2
OpenAlex
W2088964049
Cited by
23
References
41
Citations by year
2018: 1 · 2015: 1
FWCI
8.07
Type
journal article
Language
en
Open access
closed
Licence
Locations
  • Journal of Neuroscience Methods (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Anatomy › Medical and Biological Sciences
  • Physical Sciences › Engineering › Biomedical Engineering › Anatomy and Medical Technology
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
Keywords
cytoarchitecture, interobserver agreement, human brain
MeSH terms
Adolescent, Adult, Brain, Cerebral Cortex, Child, Female, Humans, Male, Middle Aged, Neurosciences, Speech, Temporal Lobe

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