How reliable are occipital asymmetry measurements?

Ching-Chiang Chu; Daniel Tranel; Hanna Damasio

doi:10.1016/0028-3932(94)90122-8

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How reliable are occipital asymmetry measurements?

Journal article

Peer reviewed

How reliable are occipital asymmetry measurements?

Ching-Chiang Chu, Daniel Tranel and Hanna Damasio

Neuropsychologia, Vol.32(12), pp.1503-1513

1994

DOI: 10.1016/0028-3932(94)90122-8

PMID: 7885580

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Abstract

In vivo occipital asymmetry (OA) measurements have been used to infer functional asymmetries such as language dominance. We investigated the degree of correlation between OA measurements derived by the same rater from different scans of the same subject. We used magnetic resonance (MR) and computerized axial tomography (CT) to study correlations between MR:MR, CT:CT and CT:MR. The highest intrasubject correlation was for MR:MR ( r =0.79). The CT:CT value was similar ( r = 0.78) and the CT:MR correlation was slightly lower ( r = 0.72). The findings indicate that the reliability of occipital asymmetry measurements is modest at best, setting a low ceiling on the valid use of this variable to infer other indexes.

hemispheric asymmetry

neuroanatomy

validity

reliability

neuroimaging

Details

Title: Subtitle: How reliable are occipital asymmetry measurements?
Creators: Ching-Chiang Chu
Daniel Tranel
Hanna Damasio
Resource Type: Journal article
Publication Details: Neuropsychologia, Vol.32(12), pp.1503-1513
DOI: 10.1016/0028-3932(94)90122-8
PMID: 7885580
NLM abbreviation: Neuropsychologia
ISSN: 0028-3932
eISSN: 1873-3514
Publisher: Elsevier Ltd
Language: English
Date published: 1994
Academic Unit: Neurology; Psychological and Brain Sciences; Iowa Neuroscience Institute
Record Identifier: 9984002320602771

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