Showing papers by "Anna Berti published in 1991"
TL;DR: A spatial exploratory task was given to 110 patients with unilateral brain lesions in two conditions, with and without the aid of vision; selective impairments in the visual and in the nonvisual condition were associated with the presence and the absence of visual field deficits.
Abstract: A spatial exploratory task was given to 110 patients with unilateral brain lesions [66 right brain-damaged (RBD) patients and 44 left brain-damaged (LBD) patients] in two conditions, with and without the aid of vision. Exploratory deficits mainly involved the contralesional half-space and were most frequently associated with right brain damage. A double dissociation was found between the visual and the nonvisual conditions of the task; selective impairments in the visual and in the nonvisual condition were associated with the presence and the absence of visual field deficits, respectively. The suggestion is made that discrete "visual" and "tactile-kinesthetic" spatial representational systems are involved in exploration of extrapersonal space. A further distinction is made between input and output spatial system. The association between visual field deficits and visual neglect is explained in terms of the impairment of an input visuospatial component, which feeds an output component involved in spatial exploration. Finally, the ambiguous nature of the visual field deficits in neglect patients is discussed and the suggestion is made that an attentional modality-specific nonsensory component may be present.
38 citations
TL;DR: In the last few years, an increasing number of researchers have started to investigate children's conceptions of the economic world as mentioned in this paper, however, complex notions, such as those concerning the overall functioning of an economic system, have hardly been considered.
Abstract: In the last few years an increasing number of researchers has started to investigate children’s conceptions of the economic world. However, complex notions, such as those concerning the overall functioning of an economic system, have hardly been considered. In post-elementary schools children encounter some of these notions in history, geography or social studies. An investigation on this topic should therefore consider both children’s conceptions and misconceptions and the relevant information furnished at school.
3 citations