Developmental time course of the acquisition of sequential egocentric and allocentric navigation strategies

Navigation in a complex environment can rely on the use of different spatial strategies. We have focused on the employment of “allocentric” (i.e., encoding interrelationships among environmental cues, movements, and the location of the goal) and “sequential egocentric” (i.e., sequences of body turns associated with specific choice points) strategies during navigation. To investigate the developmental pattern of these two strategies in school-aged children, we used a virtual reality paradigm in which the spontaneous or imposed use of both strategies could be assessed. Our results showed an increase in spontaneous use of the allocentric strategy and also an increase in reliance on environmental landmarks with age. Although a majority of the children spontaneously used the sequential egocentric strategy, all age groups performed above chance when the allocentric strategy was imposed. Altogether, our findings suggest that young children are able to employ an allocentric strategy but that the nature of this allocentric strategy changes progressively in a complex cognitive representation between 5 and 10 years of age.     

Spatial analysis after perinatal stroke: patterns of neglect and exploration in extra-personal space

This study was conducted to determine whether school-aged children who had experienced a perinatal stroke demonstrate evidence of persistent spatial neglect, and if such neglect was specific to the visual domain or was more generalized. Two studies were carried out. In the first, 38 children with either left hemisphere (LH) or right hemisphere (RH) damage and 50 age-matched controls were given visual cancellation tasks varying in two factors: target stimuli and stimulus array. In the second study, tactile neglect was evaluated in 41 children with LH or RH damage and 72 age-matched controls using a blindfolded manual exploration task. On the visual cancellation task, LH subjects omitted more target stimuli on the right, but also on the left, compared with controls. Children with RH lesions also produced a larger number of omissions on both the left and right sides than controls, but with poorer performance on the left. On the manual exploration task, LH children required significantly longer times to locate the target on both sides of the board than did controls. RH children had significantly prolonged search times on the left side, but not on the right, compared with controls. In both tasks, LH subjects employed unsystematic search strategies more often than both control and RH children. The search strategy of RH children also tended to be erratic when compared to controls, but only in the random arrays of the visual cancellation tasks; structure of the target stimuli improved their organization. These results demonstrate that children with early LH brain damage display bilateral difficulties in visual and tactile modalities; a pattern that is in contrast to that seen in adults with LH damage. This may result from disorganized search strategies or other subtle spatial or attentional deficits. Results of performance of RH children suggests the presence of contralateral neglect in both the visual and tactile modalities; a finding that is similar to the neglect in adult stroke patients with RH lesions. The fact that deficits in spatial attention and organizational strategies are present after very early focal damage to either the LH or the RH broadens our understanding of the differences in functional lateralization between the immature and mature brain. These results also add to evidence for limitations to plasticity in the developing brain. Our findings may have therapeutic and rehabilitative implications for the management of children with early focal brain lesions.     

肢体运动信息如何在工作记忆中存储?

肢体运动(空间位置运动与身体模式运动)是个体与环境交互作用的重要途径。以往行为学和脑成像研究分别探讨了空间位置运动信息和身体模式运动信息的工作记忆存储问题, 发现两种肢体运动信息的存储均独立于语音环、视空间画板的视觉子系统, 需要视空间画板的空间子系统的参与; 两种肢体运动信息激活的脑区(运动相关皮层)独立于语音环、视空间画板的视觉子系统和空间子系统, 并存在差异。这表明, 现有的工作记忆多成分模型不能完全解释肢体运动信息的存储。据此可推论, 工作记忆系统中可能存在一个负责处理肢体运动信息的“肢体运动系统”, 其隶属于视空间画板, 与视觉子系统和空间子系统并存; 其激活脑区因肢体运动的不同而存在差异。     

A Compassionate Space‐making

Using the lens of trinitarian theology of friendship, this article discusses the idea of compassionate space‐making. By showing the primacy of friendly love (philia) over agapeic love, it argues that the idea of trinitarian friendship can offer a creative and imaginative way for constructing a theology of friendship in the communal and broader social contexts. The article then presents five marks of theology of friendship that enable Christians to participate in this trinitarian friendship by making space for and befriending others: vulnerability, unpredictability, reimagination, propheticity, and compassion. The article concludes with a practical spiritual exercise which exemplifies this trinitarian theology of friendship.     

Missing

Wartime experience in Britain during World War Two left thousands of empty spaces where once buildings and streets had been. It simultaneously left gaps in families, often with far-reaching consequences. In this paper, I reflect on one such case in my own family. I examine how the devastating loss of a particular family member as a consequence of an unlucky combination of time and place played into a silent history of earlier losses connected to physical migration, experiences which had traumatic impact decades later. The interweaving of physical place, space, and gaps, with their emotional and unconscious counterparts is explored in a narrative which also traces their ripple effect through time. As part of this meditation on my family's history, I draw on research on the impact later in life of early childhood experience of maternal depression, and on studies concerning the emotional impact of migration.     

Contemporary Sociological Theory and Techno-Nihilist Capitalism

The problem advanced societies have tried to answer since the last part of the twentieth century can be ascribed to a fundamental question: how to go beyond the constitutive (and unsustainable) limit of nation-state capitalism, constrained by an excessively circumscribed and univocal idea of social organization, without losing the ability to govern? Or, expressed in other terms, how can you dismantle the center (the state) without losing the power to control? The answer to this (difficult) question has been sought for along two main axes. The first has concerned the seizing of new opportunities distributed over a space larger than the national space. As historians have shown (Arrighi 1996 Arrighi, G. 1996. Il lungo XX secolo, Milan: Il Saggiatore.  [Google Scholar]), if global projection is a constant of capitalism only the disastrous politico-military vicissitudes of the first half of the twentieth century created the conditions according to which the nation-state capitalism model could be born, in the form that dominated the fifty years following the Second World War. But first the exhaustion of colonialism, then the urgency of the energy question, the signs of a possible demise of Anglo-Saxon hegemony and, subsequently, the collapse of the Soviet empire, have changed the rules of the game. Within a rapidly transforming international framework, the recovery of a global outlook promised the exploitation of important opportunities with the opening of new markets, the valorization of investment possibilities, the displacement and utilization of low-wage labor, financial speculation, the acquisition and control of energy resources and raw materials. It is a promise that Anglo-Saxon elites have contemplated since the early 1980s, the moment in which—to counter the increasingly worrying signs of decline of their hegemony—they abandoned the Keynesian doctrine to embrace the neoliberal doctrine. The second axis along which a new growth cycle has been developed has to do with the increased manipulation of meanings available individually and collectively. Such a process is formed from the combination of two rationales, the subjectivist imperative, which inscribes into social life some of the philosophical developments of the twentieth century, and the formation of De-territorialized Aesthetic Space, which makes technically possible, a degree of cultural mobility hitherto unthinkable. Both these factors facilitate the insertion of the immaterial dimension into the cycle of capitalist valorization, making it more readily available for exploitation by economic forces on a global scale.     

Les espaces de coworking,une alternative crédible au domicile comme lieu de télétravail ? Premiers éléments issus d’une enquête exploratoire par entretiens

This exploratory study aimed at identifying which factors affect employees’ intention to use a coworking space as a place to telework. Twenty individual semi-structured interviews were conducted with employees who telework on a regular basis, including eight coworking space users. The analysis of the interviews shows that the participants perceive the opportunity to meet new people, to gain productivity and to have access to a better working comfort as a major benefit of teleworking in a coworking space compared to teleworking at home. However, the cost of the membership and the concern about increased commuting time were found to be factors that strongly impacted participants’ intention to use a coworking space as a telework location.     

Atmospheres of the other: Building and feeling Stockholm's orthodox synagogue

In this article, I use the concept of atmosphere to analyse disparate sources related to the process of sacralisation of the orthodox synagogue Adass Jisroel in modern Stockholm. Using the synagogue as an entry point, I explore the affective landscapes related to its unofficially sacred places in firstly a Pietist orphanage and secondly a cinema, and how they shaped inner-communal relations. The material components of Adass Jisroel's sites elicited different emotions from different visiting bodies: its orthodox members aimed to create a space of religious continuity and communal integrity, reformed guests othered the members, while poorer orthodox Jews felt alienated. By analysing these multiple affective experiences linked to material changes of set architectural designs, I outline, for the first time, the orthodox minority's unstable position between fragility and stability in Sweden's capital from 1870 until the 1940s. On a greater scale, through this case study, I propose that the concept of atmosphere provides the field of emotional geography with conceptual muscle to both excavate silenced minority voices, and explore the role of the built environment in eliciting emotions that shape, cement, contest and transform the inner-communal hierarchal landscape that unofficially sacred places are irrevocably situated in.     

Musical space synesthesia: Automatic,explicit and conceptual connections between musical stimuli and space

In musical–space synesthesia, musical pitches are perceived as having a spatially defined array. Previous studies showed that symbolic inducers (e.g., numbers, months) can modulate response according to the inducer’s relative position on the synesthetic spatial form. In the current study we tested two musical–space synesthetes and a group of matched controls on three different tasks: musical–space mapping, spatial cue detection and a spatial Stroop-like task. In the free mapping task, both synesthetes exhibited a diagonal organization of musical pitch tones rising from bottom left to the top right. This organization was found to be consistent over time. In the subsequent tasks, synesthetes were asked to ignore an auditory or visually presented musical pitch (irrelevant information) and respond to a visual target (i.e., an asterisk) on the screen (relevant information). Compatibility between musical pitch and the target’s spatial location was manipulated to be compatible or incompatible with the synesthetes’ spatial representations. In the spatial cue detection task participants had to press the space key immediately upon detecting the target. In the Stroop-like task, they had to reach the target by using a mouse cursor. In both tasks, synesthetes’ performance was modulated by the compatibility between irrelevant and relevant spatial information. Specifically, the target’s spatial location conflicted with the spatial information triggered by the irrelevant musical stimulus. These results reveal that for musical–space synesthetes, musical information automatically orients attention according to their specific spatial musical-forms. The present study demonstrates the genuineness of musical–space synesthesia by revealing its two hallmarks—automaticity and consistency. In addition, our results challenge previous findings regarding an implicit vertical representation for pitch tones in non-synesthete musicians.     

Relations of Power in Different Spaces: An Exploration of the Schooling Experiences of Children in an HIV/AIDS Context

In this article we explore how the concept of relations of power in different spaces plays out in the lives of school children living in an HIV/AIDS context, and how processes of inclusion and exclusion are associated with particular spaces. The article uses Foucault's (2000) identification of four distinct relations of power to argue that within different school spaces we find economic, political, judicial and epistemological relations of power that are embedded in the way children experience reality. The study was conducted in five primary schools, three secondary schools, one early Childhood Education (ECD) centre, a special school and their communities in the province of KwaZulu Natal. Participants were teachers, learners, out of school youth, and members of community organisations working in the district. Data collection methods included individual and focus group interviews. Within the focus group interviews various participatory research techniques were used, including ranking exercises, projective activities, transect walk, body mapping, photo voice. The findings in the study revealed three complex and contradictory schooling spaces: policy space, curriculum space, and safe spaces in which learners' schooling lives are played out. The study showed that space is fundamental in the exercise of power as revealed in the exclusionary and inclusionary ways in which children experienced their schooling lives.