The sentence verification task: a reliable fMRI protocol for mapping receptive language in individual subjects
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Published on: March 24, 2023
Ana Sanjuán1, Cristina Forn, Noelia Ventura-Campos
1Departamento de Psicología Básica, Clínica y Psicobiología, Universitat Jaume I, Avda. Sos Baynat, s/n, 12071, Castellón de la Plana, Spain. asanjuan@psb.uji.es
Objective:
To test the capacity of a sentence verification (SV) task to reliably activate receptive language areas. Presurgical evaluation of language is useful in predicting postsurgical deficits in patients who are candidates for neurosurgery. Productive language tasks have been successfully elaborated, but more conflicting results have been found in receptive language mapping.
Materials And Methods:
Twenty-two right-handed healthy controls made true-false semantic judgements of brief sentences presented auditorily.
Results:
Group maps showed reliable functional activations in the frontal and temporoparietal language areas. At the individual level, the SV task showed activation located in receptive language areas in 100% of the participants with strong left-sided distributions (mean lateralisation index of 69.27).
Conclusion:
The SV task can be considered a useful tool in evaluating receptive language function in individual subjects. This study is a first step towards designing the fMRI task which may serve to presurgically map receptive language functions.
