Solving Spatial Tasks with Unaligned Layouts: The Difficulty of Dealing with Conflicting Information

2002 ◽  
Author(s):  
Marina Vasilyeva
2010 ◽  
Vol 31 (2) ◽  
pp. 68-73 ◽  
Author(s):  
María José Contreras ◽  
Víctor J. Rubio ◽  
Daniel Peña ◽  
José Santacreu

Individual differences in performance when solving spatial tasks can be partly explained by differences in the strategies used. Two main difficulties arise when studying such strategies: the identification of the strategy itself and the stability of the strategy over time. In the present study strategies were separated into three categories: segmented (analytic), holistic-feedback dependent, and holistic-planned, according to the procedure described by Peña, Contreras, Shih, and Santacreu (2008) . A group of individuals were evaluated twice on a 1-year test-retest basis. During the 1-year interval between tests, the participants were not able to prepare for the specific test used in this study or similar ones. It was found that 60% of the individuals kept the same strategy throughout the tests. When strategy changes did occur, they were usually due to a better strategy. These results prove the robustness of using strategy-based procedures for studying individual differences in spatial tasks.


Author(s):  
Anna Chuneyeva ◽  
Mercedes Fernandez ◽  
Nicholas K. Lim ◽  
Lisa A. Long
Keyword(s):  

Author(s):  
Martin Gustavsson

A dilemma for market organizers is created by the fact that sellers want to know as much about buyers as possible, whereas buyers rarely want the seller to have that information—not least for privacy reasons. This dilemma is affected by market organization, and market organization may also be used to try to change imbalances in the conflicting information interests. In the market for personal insurance, insurance sellers require in-depth information about the buyer’s health conditions, in order to make an accurate categorization. As this information is sensitive to buyers, however, and can potentially exclude them from the market, many buyers are concerned about sharing it. This chapter demonstrates how sellers have spent considerable resources trying to organize buyers. However, the considerable imbalance in favour of the sellers’ interests triggered buyers and their advocates to call for market reorganizations. Eventually the state reacted and reorganized the market, but only modestly so.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Loes Ottink ◽  
Marit Hoogendonk ◽  
Christian F. Doeller ◽  
Thea M. Van der Geest ◽  
Richard J. A. Van Wezel

AbstractIn this study, we compared cognitive map formation of small-scale models of city-like environments presented in visual or tactile/haptic modalities. Previous research often addresses only a limited amount of cognitive map aspects. We wanted to combine several of these aspects to elucidate a more complete view. Therefore, we assessed different types of spatial information, and consider egocentric as well as allocentric perspectives. Furthermore, we compared haptic map learning with visual map learning. In total 18 sighted participants (9 in a haptic condition, 9 visuo-haptic) learned three tactile maps of city-like environments. The maps differed in complexity, and had five marked locations associated with unique items. Participants estimated distances between item pairs, rebuilt the map, recalled locations, and navigated two routes, after learning each map. All participants overall performed well on the spatial tasks. Interestingly, only on the complex maps, participants performed worse in the haptic condition than the visuo-haptic, suggesting no distinct advantage of vision on the simple map. These results support ideas of modality-independent representations of space. Although it is less clear on the more complex maps, our findings indicate that participants using only haptic or a combination of haptic and visual information both form a quite accurate cognitive map of a simple tactile city-like map.


Author(s):  
Alison G. Vredenburgh ◽  
Rodrigo J. Daly Guris ◽  
Kevin G. Welner ◽  
Sreekanth R. Cheruku

By October, we will have learned a great deal about responding to an epidemic or pandemic that has proved to have a level of transmission unprecedented in the modern era. The possible and likely responses include many unknowns. Coordinated and collaborative implementation has been complicated by conflicting information from multiple governments and organizations in several languages. What will we learn about how the United States can improve its ability to respond? How do we develop consistent and accurate warnings and messaging to the public in order to increase compliance regarding a new, and not well understood, epidemic? What factors increase or decrease compliance? How are US education policymakers deciding about face-to-face instruction? How have physicians and hospitals adapted their workflows in the face of uncertainty and supply chain inconsistencies? This panel will include a warnings expert, an expert on education law and policy, and two physicians.


2021 ◽  
Vol 11 (6) ◽  
pp. 681
Author(s):  
Alessia Bocchi ◽  
Massimiliano Palmiero ◽  
Jose Manuel Cimadevilla Redondo ◽  
Laura Tascón ◽  
Raffaella Nori ◽  
...  

Individual factors like gender and familiarity can affect the kind of environmental representation that a person acquires during spatial navigation. Men seem to prefer relying on map-like survey representations, while women prefer using sequential route representations. Moreover, a good familiarity with the environment allows more complete environmental representations. This study was aimed at investigating gender differences in two different object-position learning tasks (i.e., Almeria Boxes Tasks) assuming a route or a survey perspective also considering the role of environmental familiarity. Two groups of participants had to learn the position of boxes placed in a virtual room. Participants had several trials, so that familiarity with the environment could increase. In both tasks, the effects of gender and familiarity were found, and only in the route perspective did an interaction effect emerge. This suggests that gender differences can be found regardless of the perspective taken, with men outperforming women in navigational tasks. However, in the route task, gender differences appeared only at the initial phase of learning, when the environment was unexplored, and disappeared when familiarity with the environment increased. This is consistent with studies showing that familiarity can mitigate gender differences in spatial tasks, especially in more complex ones.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Beena Koshy ◽  
Manikandan Srinivasan ◽  
Timiri Palani Murugan ◽  
Anuradha Bose ◽  
Pamela Christudoss ◽  
...  

Abstract Background Head circumference (HC) measurement is routinely not performed in early childhood and there is conflicting information about its utility in literature. The current study analyses the association between HC at two years of age and cognition at two and five years of age. Methods A community based birth-cohort recruited between 2010 and 2012 was followed up till five years of age in an urban slum in Vellore, India. Children were recruited at birth after informed parental consent by consecutive sampling using eligibility criteria of healthy new-born, singleton pregnancy and family’s availability in the study area during follow-up. HC measured at two years of age was used as the exposure variable to calculate association with cognition at both two and five years of age. Cognitive domain of Bayley scale of infant development was used at two years of age and Wechsler Preschool Primary Scales of Intelligence at five years. Results Of the 251 enrolled children, 138 (55%) were girls and 71 (30%) belonged to lower socioeconomic status. At 2 years, 8.81% of children had HC < − 3SD. Compared to children with HC z-scores ≥ − 2 SD, those with measurements < − 3 SD had a lower cognition scores by − 2.21 [95% CI: − 3.87 - -0.56] at 2 years. Also, children with HC < − 3 SD at two years scored significantly lower scores in cognitive domains of verbal, − 7.35 [95% CI: − 11.78 - -2.92] and performance, − 7.07 [95% CI: − 11.77 - -2.36] intelligence at five years. Conclusions This study showed that smaller HC at 2 years of age was negatively associated with cognition at both 2 and 5 years of age. Early childhood HC measurements can be utilised as a cheaper screening tool to identify children at risk in LMIC settings. Further studies can confirm these findings in diverse settings.


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