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411.
The nature of object-centred (allocentric) neglect and the possibility of dissociating it from egocentric (subject-centred) forms of neglect are controversial. Originally, allocentric neglect was described by and in patients who reproduced all the elements of a multi-object scene, but left unfinished the left side of one or more of them. More recently, however, Karnath, Mandler, and Clavagnier (2011) have claimed that the severity of allocentric neglect worsens when a complex ‘object’ shifts from an ipsilesional to a contralesional egocentric position. On the basis of these and of other clinical data, showing that allocentric and egocentric neglect are strongly associated, they have questioned the possibility of dissociating these two forms of neglect, suggesting that egocentric and allocentric neglect constitute different manifestations of the same disturbed system. Since these statements were inconsistent with the clinical findings which had prompted the construct of object-centred neglect, we checked in a group of right brain-damaged patients, who had copied the original multi-object scene, if the degree of neglect for the left side of figures varied as a function of their position on the horizontal axis. Furthermore, we reviewed all papers where copies of other multi-object scenes had been reported. Results of both studies failed to confirm the assumption of a relationship between spatial location of the stimulus and severity of object-centred neglect. This discrepancy between our data and those obtained by Karnath et al. (2011) could be due to the characteristics of stimuli and of procedures used to evaluate ‘object-centred’ neglect. If the stimulus is complex and the task requires its thorough exploration, the spatial location of the stimulus will influence the severity of ‘object-centred neglect’. If, on the contrary, the stimulus is simple and can be identified with few eye fixations, the spatial location of the stimulus should not influence the severity of ‘object-centred neglect’. In any case, our data confirm the possibility of dissociating allocentric from egocentric neglect. 相似文献
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Maureen C. Kenny Kyle D. Bennett Jonelle Dougery Francesca Steele 《Journal of child and family studies》2013,22(8):1092-1102
This case study describes the implementation of a safety training program with a 5-year-old Latino boy diagnosed with Autism Spectrum Disorder. The program focused on teaching him general safety rules and body safety in an effort to reduce his likelihood of sexual victimization and injury. The boy was treated in conjunction with another child by two therapists, while his caretakers participated in a caretaker group. Both groups consisted of 10 h of safety education instruction. Results show that the boy was able to learn a few safety concepts as well as increase his knowledge of personal safety. Caregiver data revealed a minor increase in knowledge of general safety and an increase in family communication regarding safety issues. However, upon a 3-month follow-up, the boy appeared to lose some knowledge. Recommendations for implementing the Body Safety Training program with children with disabilities and providing their caretakers with information regarding the risk of child sexual abuse is provided. 相似文献
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Francesca Sylos-Labini Yuri P. Ivanenko Germana Cappellini Alessandro Portone Michael J. MacLellan Francesco Lacquaniti 《Journal of motor behavior》2013,45(6):495-505
Gravity reduction affects the energetics and natural speed of walking and running. But, it is less clear how segmental coordination is altered. Various devices have been developed in the past to study locomotion in simulated reduced gravity. However, most of these devices unload only the body center of mass. The authors reduced the effective gravity acting on the stance or swing leg to 0.16g using different simulators. Locomotion under these conditions was associated with a reduction in the foot velocity and significant changes in angular motion. Moreover, when simulated reduced gravity directly affected the swing limb, it resulted in significantly slower swing and longer foot excursions, suggesting an important role of the swing phase dynamics in shaping locomotor patterns. 相似文献
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Understanding plays a cardinal role in relationships. People desire and need to understand their relationship partners and, importantly, they need to feel understood by others in daily life. In this chapter we suggest that these needs are reflected in people's need to know and be known by others (understanding as knowledge) and their desire to be responsive to others' needs and experience others as responsive to their needs (understanding as responsiveness). We review empirical findings showing that a lack of understanding has important ill-effects and that the presence of understanding has a multitude of beneficial effects for people in relationships, both for their personal and relational well-being. 相似文献
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Extra‐powerful on the visuo‐perceptual space,but variable on the number space: Different effects of optokinetic stimulation in neglect patients 下载免费PDF全文
Marco Pitteri Georg Kerkhoff Ingo Keller Francesca Meneghello Konstantinos Priftis 《Journal of Neuropsychology》2015,9(2):299-318
We studied the effects of optokinetic stimulation (OKS; leftward, rightward, control) on the visuo‐perceptual and number space, in the same sample, during line bisection and mental number interval bisection tasks. To this end, we tested six patients with right‐hemisphere damage and neglect, six patients with right‐hemisphere damage but without neglect, and six neurologically healthy participants. In patients with neglect, we found a strong effect of leftward OKS on line bisection, but not on mental number interval bisection. We suggest that OKS influences the number space only under specific conditions. 相似文献