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Listening to Action-related Sentences Activates Fronto-parietal Motor Circuits
The results showed that listening to action-related sentences activates a left fronto-parieto-temporal network that includes the pars opercularis of the inferior frontal gyrus (Broca's area), as well as the inferior parietal lobule, the intraparietal sulcus, and the posterior middle temporal gyrus.
Cerebral blood flow, blood volume and oxygen utilization. Normal values and effect of age.
The results suggest diminished neuronal firing or decreased dendritic synaptic density with age, as well as a strict coupling between CMRO2 and CBF, and between CBF and CBV was found, while OER was constant and independent ofCBF andCMRO2.
Localization of grasp representations in humans by PET: 1. Observation versus execution
It was hypothesized that during grasping observation, activations should be present in the region of the superior temporal sulcus (STS) and in inferior area 6 and the findings in humans demonstrated that grasp observation significantly activates the cortex of the middle temporal gyrus.
The anatomy of unilateral neglect after right-hemisphere stroke lesions. A clinical/CT-scan correlation study in man
Unawareness of disease following lesions of the right hemisphere: Anosognosia for hemiplegia and anosognosia for hemianopia
The neural correlates of verb and noun processing. A PET study.
PET was used to measure regional cerebral activity during tasks requiring reading of concrete and abstract nouns and verbs for lexical decision and indicated that abstract word processing was associated with selective activations, which is compatible with the view that lexical-semantic processing of words is mediated by an extensive, predominantly left hemispheric network of brain structures.
Early Setting of Grammatical Processing in the Bilingual Brain
Mapping motor representations with positron emission tomography
Brain activity was mapped in normal subjects during passive obser-vation of the movements of an 'alien' hand and while imagining grasping objects with their own hand to support the notion that motor learning during observation of movements and mental practice involves rehearsal of neural pathways related to cognitive stages of motor control.
The bilingual brain. Proficiency and age of acquisition of the second language.
Findings suggest that, at least for pairs of L1 and L2 languages that are fairly close, attained proficiency is more important than age of acquisition as a determinant of the cortical representation of L2.
The logopenic/phonological variant of primary progressive aphasia
Investigation of phonological loop functions showed that patients were severely impaired in digit, letter, and word span tasks, and cognitive and neuroimaging data indicate that a deficit in phonological loops may be the core mechanism underlying the LPA clinical syndrome.