101,920 research outputs found
Selective effects of a brain tumor on the metric representation of the hand: a pre- versus post-surgery comparison
No full textBody representation disorders are complex, varied, striking, and very disabling in most cases. Deficits of body representation have been described after lesions to multimodal and sensorimotor cortical areas. A few studies have reported the effects of tumors on the representation of the body, but little is known about the changes after tumor resection. Moreover, the impact of brain lesions on the hand size representation has been investigated in few clinical cases. Hands are of special importance, as no other body part has the ability for movement and interaction with the environment that the hands have, and we use them for a multitude of daily activities. Studies with clinical population can add further knowledge into the way hands are represented. Here, we report a single case study of a patient (AM) who was an expert bodybuilder and underwent a surgery to remove a glioblastoma in the left posterior prefrontal and precentral cortex at the level of the hand’s motor region. Pre- (20 days) and post- (4 months) surgery assessment did not show any motor or cognitive impairments. A hand localization task was used, before and after surgery (12 months), to measure possible changes of the metric representation of his right hand. Results showed a post-surgery modulation of the typically distorted hand representation, with an overall accuracy improvement, especially on width dimension. These findings support the direct involvement of sensorimotor areas in the implicit representation of the body size and its relevance on defining specific size representation dimensions
Agostino d'Ippona: "Il nostro volere sia suo e nostro_" (ad Simplicianum I 2.10)
No full textIl volume riporta una antologia di testi agostiniani, corredati da un apparato di note, concernenti l'esperienza "mistica" vissuta dall'Autore nell'arco di tempo che va dal 386 al 418. La raccolta dei brani - tratti dai "Soliloqui", le "Confessioni", "La Trinità", le EP. 147 e 187 e l'omelia 7 su 1Gv - è preceduta da un'ampia introduzione particolarmente incentrata sul rapporto che Agostino, nel corso della sua vita, ha avuto con la Bibbia, si sofferma quindi sul periodo manicheo e poi sulla sua attività di commentatore e predicatore, sia come presbitero e poi come vescovo
Origene e la morale nel Commento alla lettera ai Romani
No full textScopo dello studio è illustrare la riflessione sull’aspetto morale della fede cristiana proposto da Origene nel suo Commento alla lettera ai Romani. Ci si sofferma in particolare sui seguenti temi: il nesso spiritalis observantia-cultus-sacrificium, che consente ad Origene un serrato confronto con la morale giudaica; i soggetti morali e lo scopo dell’insegnamento morale, che Origene rileva nello scritto apostolico; lo specifico della morale cristiana rispetto alla morale tradizionale; le tappe del progresso morale; il rapporto tra leggi umane e leggi divine; il contesto religioso e culturale della chiesa di Cesarea
Left ipsilesional neglect for visual imagery: a mental image generation impairment?
No full textIn this article, we describe a patient, CN, with unilateral left posterior brain damage, who shows a rare occurrence of left ipsilesional neglect limited to mental representations. CN's clinical pattern is consistent with the hypothesis that different mechanisms underlie perceptual and representational neglect. We also discuss an interpretation of representational neglect based on the different involvement of the two hemispheres in visual imagery processes. In particular, left brain lesions do not present the typical strong contralesional bias and may lead to an impairment of mental generation of either side of the image, depending on pre-morbid and methodological factors
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