Wada Test

2016 ◽  
pp. 1-4
Author(s):  
Jacinta McElligott
Keyword(s):  
Wada Test

Behavioral measures and EEG monitoring using the Brain Symmetry Index during the Wada test in children

2012 ◽  
Vol 23 (3) ◽  
pp. 247-253 ◽  
Author(s):  
Jurriaan M. Peters ◽  
Meritxell Tomas-Fernandez ◽  
Michel J.A.M. van Putten ◽  
Tobias Loddenkemper
Keyword(s):  
Eeg Monitoring ◽  
Wada Test ◽  
Behavioral Measures ◽  
Symmetry Index ◽  
The Brain

scholarly journals Dissociated Crossed Speech Areas in a Tumour Patient

2017 ◽  
Vol 9 (2) ◽  
pp. 131-136 ◽  
Author(s):  
Jörg Mauler ◽  
Irene Neuner ◽  
Georg Neuloh ◽  
Bruno Fimm ◽  
Frank Boers ◽  
...  
Keyword(s):  
Right Hemisphere ◽  
Insular Cortex ◽  
Low Grade ◽  
Wada Test ◽  
Brain Hemispheres ◽  
Eloquent Areas ◽  
Tumour Removal ◽  
Frontal Operculum ◽  
The Right ◽  
Impaired Speech

In the past, the eloquent areas could be deliberately localised by the invasive Wada test. The very rare cases of dissociated crossed speech areas were accidentally found based on the clinical symptomatology. Today functional magnetic resonance imaging (fMRI)-based imaging can be employed to non-invasively localise the eloquent areas in brain tumour patients for therapy planning. A 41-year-old, left-handed man with a low-grade glioma in the left frontal operculum extending to the insular cortex, tension headaches, and anomic aphasia over 5 months underwent a pre-operative speech area localisation fMRI measurement, which revealed the evidence of the transhemispheric disposition, where the dominant Wernicke speech area is located on the left and the Broca’s area is strongly lateralised to the right hemisphere. The outcome of the Wada test and the intraoperative cortico-subcortical stimulation mapping were congruent with this finding. After tumour removal, language area function was fully preserved. Upon the occurrence of brain tumours with a risk of impaired speech function, the rare dissociate crossed speech areas disposition may gain a clinically relevant meaning by allowing for more extended tumour removal. Hence, for its identification, diagnostics which take into account both brain hemispheres, such as fMRI, are recommended.

scholarly journals The Wada Test: contributions to standardization of the stimulus for language and memory assessment

2004 ◽  
Vol 62 (3a) ◽  
pp. 582-587 ◽  
Author(s):  
Maria Joana Mäder ◽  
Bellkiss Wilma Romano ◽  
Luciano De Paola ◽  
Carlos Eduardo Soares Silvado
Keyword(s):  
Stimulus Type ◽  
Refractory Epilepsy ◽  
Normal Subjects ◽  
Brazilian Population ◽  
Memory Testing ◽  
Wada Test ◽  
Presurgical Evaluation ◽  
Memory Assessment ◽  
Parallel Models

The Wada Test (WT) is part of the presurgical evaluation for refractory epilepsy. The WT is not standardized and the protocols differ in important ways, including stimulus type of material presented for memory testing, timing of presentations and methods of assessment. The aim of this study was to contribute to establish parameters for a WT to Brazilian population investigating the performance of 100 normal subjects, without medication. Two parallel models were used based on Montreal Procedure adapted from Gail Risse's (MEG-MN,EUA) protocol. The proportions of correct responses of normal subjects submitted to two parallel WT models were investigated and the two models were compared. The results showed that the two models are similar but significant differences among the stimulus type were observed. The results suggest that the stimulus type may influence the results of the WT and should be considered when constructing models and comparing different protocols.

The 411 of the Wada Test

2012 ◽  
Vol 31 (2) ◽  
pp. 72-73
Author(s):  
Kristin Prentice
Keyword(s):  
Wada Test

P25-27 A simple language dominance test with neuromagnetic responses to vowels vs. tones yields good agreement with the Wada test

2010 ◽  
Vol 121 ◽  
pp. S257
Author(s):  
E. Kirveskari ◽  
R. Paetau ◽  
J. Wilenius ◽  
H. Lehtinen ◽  
R. Salmelin
Keyword(s):  
Wada Test ◽  
Dominance Test ◽  
Language Dominance ◽  
Simple Language ◽  
Good Agreement
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