Freezefoot

Name: Freezefoot
Published: 2012-01-01T00:00:00Z
License: https://creativecommons.org/publicdomain/zero/1.0/

Bishop, D

Documentation:: Freezefoot

Videos used as experimental stimuli for functional transcranial Doppler ultrasound studies of cerebral lateralisation in children, as used in these publications:

Bishop, D. V. M., Badcock, N. A., & Holt, G. (2010). Assessment of cerebral lateralization in children using functional transcranial Doppler ultrasound (fTCD). Journal of Visualized Experiments(43), e2161.

Bishop, D. V. M., Watt, H., & Papadatou-Pastou, M. (2009). An efficient and reliable method for measuring cerebral lateralization during speech with functional transcranial Doppler ultrasound. Neuropsychologia, 47, 587-590.

Groen, M. A., Whitehouse, A. J., Badcock, N. A., & Bishop, D. V. (2012). Does cerebral lateralisation develop? A study using functional transcranial Doppler ultrasound assessing lateralisation for language production and visuospatial memory. Brain and Behavior doi: doi:10.1016/j.neuropsychologia.2011.07.031

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APA Style

Bishop, D. (2012). Freezefoot. University of Oxford.

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Bishop, D. Freezefoot. University of Oxford, 2012.

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Bishop, D. 2012. Freezefoot. University of Oxford.
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Files:: Freezefoot videos part 1.zip

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Freezefoot videos part 2.zip

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Freezefoot videos part 3.zip

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+ Bishop, D More by this author/creator

Institution:: University of Oxford
Division:: MSD
Department:: Experimental Psychology
Role:: Researcher, Creator

Publisher:: University of Oxford
Publication date:: 2012

Language:: English
Keywords:: visuospatial memory

language production

functional transcranial Doppler ultrasonography

speech

cerebral lateralization
Subjects:: Brain--Localization of functions
Pubs id:: 1480237
UUID:: uuid:bfc9834c-2582-4243-a228-38060d561dcd
Local pid:: pubs:1480237
Deposit date:: 2015-07-29
ARK identifier:: ark:/29072/ora_bfc9834c25824243a22838060d561dcd

Related item:: 10.1002/brb3.56
Description:: The gold standard method for measuring cerebral lateralization, the Wada technique, is too invasive for routine research use. Functional magnetic resonance imaging is a viable alternative but it is costly and affected by muscle artefact when activation tasks involve speech. Functional transcranial Doppler ultrasonography (fTCD) can be used to assess cerebral lateralization by comparing blood flow in the middle cerebral arteries. We used fTCD to compare indices of language lateralization in 33 adults in three different paradigms: Word Generation, Picture Description and a shorter Animation Description task. Animation Description gave valid results, and we subsequently demonstrated its reliability in a group of 21 4-year-old children. Cerebral lateralization during spoken language generation can be assessed reliably and cheaply using fTCD with a paradigm that is less taxing than the traditional word generation paradigm, does not require literacy skills and can be completed in 15 min or less.
Related item:: Assessment of Cerebral Lateralization in Children using Functional Transcranial Doppler Ultrasound (fTCD)
Description:: Functional transcranial Doppler sonography (fTCD) is a simple and non-invasive ultrasound technique which can be used to assess the lateralization of cognitive functions, especially language, and is suitable for use with children.
Related item:: Does cerebral lateralization develop? A study using functional transcranial Doppler ultrasound assessing lateralization for language production and visuospatial memory
Description:: In the majority of people, language production is lateralized to the left cerebral hemisphere and visuospatial skills to the right. However, questions remain as to when, how, and why humans arrive at this division of labor. In this study, we assessed cerebral lateralization for language production and for visuospatial memory using functional transcranial Doppler ultrasound in a group of 60 typically developing children between the ages of six and 16 years. The typical pattern of left-lateralized activation for language production and right-lateralized activation for visuospatial memory was found in the majority of the children (58%). No age-related change in direction or strength of lateralization was found for language production. In contrast, the strength of lateralization (independent of direction) for visuospatial memory function continued to increase with age. In addition, boys showed a trend for stronger right-hemisphere lateralization for visuospatial memory than girls, but there was no gender effect on language laterality. We tested whether having language and visuospatial functions in the same hemisphere was associated with poor cognitive performance and found no evidence for this “functional crowding” hypothesis. We did, however, find that children with left-lateralized language production had higher vocabulary and nonword reading age-adjusted standard scores than other children, regardless of the laterality of visuospatial memory. Thus, a link between language function and left-hemisphere lateralization exists, and cannot be explained in terms of maturational change.

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