Pathways to lexical ambiguity: fMRI evidence for bilateral fronto-parietal involvement in language processing

Pathways to lexical ambiguity: fMRI evidence for bilateral fronto-parietal involvement in language processing.

Numerous functional neuroimaging studies reported increased activity in the pars opercularis and the pars triangularis (Brodmann's areas 44 and 45) of the left hemisphere during the performance of linguistic tasks. The role of these areas in the right hemisphere in language processing is not understood and, although there is evidence from lesion studies that the right hemisphere is involved in ...

Evidence for bilateral involvement in idiom comprehension: An fMRI study.

The goal of the current study was to identify the neural substrate of idiom comprehension using fMRI. Idioms are familiar, fixed expressions whose meaning is not dependent on the literal interpretation of the component words. We presented literally plausible idioms in a sentence forcing a figurative or a literal interpretation and contrasted them with sentences containing idioms for which no li...

A fronto-parietal circuit for object manipulation in man: evidence from an fMRI-study.

Functional magnetic resonance imaging (fMRI) was used to localize brain areas active during manipulation of complex objects. In one experiment subjects were required to manipulate complex objects for exploring their macrogeometric features as compared to manipulation of a simple smooth object (a sphere). In a second experiment subjects were asked to manipulate complex objects and to silently na...

A common right fronto-parietal network for numerosity and duration processing: an fMRI study.

Numerosity and duration processing have been modeled by a functional mechanism taking the form of an accumulator working under two different operative modes. Separate investigations of their cerebral substrates have revealed partly similar patterns of activation, mainly in parietal and frontal areas. However, the precise cerebral implementation of the accumulator model within these areas has no...

Language, Paleoneurology, and the Fronto-Parietal System