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Implicit functional-semantic evaluation of object symmetry and contralesional visual denial in a case of left unilateral neglect with damage of the dorsal paraventricular white matter.
No full textIt is well documented that right brain damaged patients with left unilateral neglect may show unconscious processing of contralesional stimuli. However, the anatomical correlates of this phenomenon are still not well defined. Here we report the case of a neglect patient with a circumscribed lesion of the dorsal parietal-occipital white matter showing clear implicit processing of the contralesional side of line drawings and object based neglect. The patient was able to perform correct semantic analysis of the symmetry (or asymmetry) of the drawings. Additional testing disclosed denial of the existence of the contralesional side of asymmetrical geometrical shapes with correct perception of symmetrical ones and of shapes without the left side. These findings provide direct evidence supporting a critical role of the dorsal visual system in the activation of conscious representations of visual stimuli
La curva di apprendimento in chirurgia oncologica ed il ruolo delle scuole di specializzazione di area chirurgica alla luce del loro riassetto Roma 15-18 Ottobre / 108 Congresso Nazionale Societa' Italiana di Chirurgia
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Differences between musicians and non-musicians in exogenous attentional orienting: a preliminary study
No full textMusical training induces structural and functional neuroplastic changes, which produce behavioral and cognitive differences. Several studies have focused on differences in hemispheric asymmetries, with musicians showing reduced asymmetries in inter-hemispheric transfer times, as well as reduced leftward biases in line bisection tasks. The present study aims at investigating visual hemifields biases in musicians and non-musicians in an exogenous attentional task
Modulazione selettiva delle aree compito-specifiche durante il task-switching: uno studio di fMRI
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