The effect of thalamic stimulation in processing of verbal stimuli in dichotic listening tasks: A case study

In dichotic listening tasks, the (dominant) right ear's superiority in processing verbal stimuli has been attributed to its direct anatomic connection with the left dominant hemisphere. The role played by extralinguistic factors, such as attention and functional tuning of the associated cortica...

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Bibliographic Details
Published in:Brain and language 1989-02, Vol.36 (2), p.236-251
Main Authors: Bhatnager, Subhash C., Andy, Orlando J., Korabic, Edward W., Tikofsky, Ronald S., Saxena, Varun K., Hellman, Robert S., Collier, B.David, Krohn, Linda D.
Format: Article
Language:English
Subjects:
Attention - physiology
Behavioral psychophysiology
Biological and medical sciences
Brain Mapping
Dichotic Listening Tests
Dominance, Cerebral - physiology
Electric Stimulation
Fundamental and applied biological sciences. Psychology
Humans
Male
Mental Recall - physiology
Middle Aged
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Speech Perception - physiology
Thalamic Nuclei - physiopathology
Tomography, Emission-Computed
Trigeminal Neuralgia - physiopathology
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Summary:In dichotic listening tasks, the (dominant) right ear's superiority in processing verbal stimuli has been attributed to its direct anatomic connection with the left dominant hemisphere. The role played by extralinguistic factors, such as attention and functional tuning of the associated cortical structures, has not been carefully examined. This investigation was undertaken to evaluate the effects of the left thalamic electric stimulation on the processing (recognition and recall) of dichotically presented CVC verbal stimuli in a patient being treated for chronic pain. We report the positive effects of electric stimulation (confirmed by increased subcortical metabolic activity using SPECT, a brain imaging technique) on the processing of dichotically presented verbal stimuli.
ISSN:0093-934X
1090-2155
DOI:10.1016/0093-934X(89)90063-1