Comparative Analysis of Brain Activity in Verbal and Spatial Thought in Healthy Subjects and Patients with Speech Disorders
| Autor: | A. M. Ivanitskii, Galina V. Portnova, V.V. Balaev, Olga Martynova |
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| Rok vydání: | 2017 |
| Předmět: |
Left insula
medicine.medical_specialty Brain activity and meditation General Neuroscience 05 social sciences Healthy subjects Cognition Audiology behavioral disciplines and activities 050105 experimental psychology Developmental psychology 03 medical and health sciences Dysarthria 0302 clinical medicine Aphasia medicine 0501 psychology and cognitive sciences In patient medicine.symptom Psychology 030217 neurology & neurosurgery Brodmann area |
| Zdroj: | Neuroscience and Behavioral Physiology. 47:767-776 |
| ISSN: | 1573-899X 0097-0549 |
| Popis: | We report here an analysis of specific brain activity measured by fMRI during solution of spatial and verbal tasks in 15 healthy subjects and nine patients with dysarthria or mild sensorimotor aphasia. In healthy subjects, activation of Brodmann area (BA) 19 and Broca’s area was more characteristic of verbal thought, while greater bilateral activation of the temporal-parietal-occipital zone, along with the left insula and visual fields 17 and 18 on the left, was specific for spatial thought. In patients with speech disorders, the distribution of areas specific to one task or another underwent significant changes, with non-activation of areas of brain activation characteristic of healthy subjects. Despite the absence of clinical signs of cognitive impairments, the mean verbal task solution time was significantly longer and the proportion of correct responses was smaller in patients than in healthy subjects. |
| Databáze: | OpenAIRE |
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