Poison control

About: Poison control is a research topic. Over the lifetime, 394709 publications have been published within this topic receiving 15781638 citations.

Fear of falling and restriction of mobility in elderly fallers

Abstract: Objectives To identify the characteristics of elderly persons who develop a fear of falling after experiencing a fall and to investigate the association of this fear with changes in health status over time. Design A prospective study of falls over a 2-year period (1991-92). Falls were ascertained using bimonthly postcards plus telephone interview with a standardized (World Health Organisation) questionnaire for circumstances, fear of falling and consequences of each reported fall. Each participant underwent a physical exam and subjective health assessment each year form 1990 to 1993. Setting New-Mexico Aging Process Study, USA. Subjects 487 elderly subjects (> 60 years) living independently in the community. Main outcome measures Fear of falling after experiencing a fall. Results 70 (32%) of 219 subjects who experienced a fall during the 2 year study period reported a fear of falling. Women were more likely than men to report fear of falling (74% vs 26%). Fallers who were afraid of falling again had significantly ore balance (31.9% vs 12.8%) and gait disorders (31.9% vs 7.4%) at entry in the study in 1990. Among sex, age, mental status, balance and gait abnormalities, economic resource and physical health, logistic regression analysis show gait abnormalities and poor self-perception of physical health, cognitive status and economic resources to be significantly associated with fear of falling. Subjects who reported a fear of falling experienced a greater increase in balance (P = 0.08), gait (P Conclusion The study indicated that about one-third of elderly people develop a fear of falling after an incident fall and this issue should be specifically addressed in any rehabilitation programme.

Is vision continuous with cognition? The case for cognitive impenetrability of visual perception

Abstract: Although the study of visual perception has made more progress in the past 40 years than any other area of cognitive science, there remain major disagreements as to how closely vision is tied to cognition. This target article sets out some of the arguments for both sides (arguments from computer vision, neuroscience, psychophysics, perceptual learning, and other areas of vision science) and defends the position that an important part of visual perception, corresponding to what some people have called early vision, is prohibited from accessing relevant expectations, knowledge, and utilities in determining the function it computes - in other words, it is cognitively im- penetrable. That part of vision is complex and involves top-down interactions that are internal to the early vision system. Its function is to provide a structured representation of the 3-D surfaces of objects sufficient to serve as an index into memory, with somewhat differ- ent outputs being made available to other systems such as those dealing with motor control. The paper also addresses certain concep- tual and methodological issues raised by this claim, such as whether signal detection theory and event-related potentials can be used to assess cognitive penetration of vision. A distinction is made among several stages in visual processing, including, in addition to the inflexible early-vision stage, a pre-per- ceptual attention-allocation stage and a post-perceptual evaluation, selection, and inference stage, which accesses long-term memory. These two stages provide the primary ways in which cognition can affect the outcome of visual perception. The paper discusses argu- ments from computer vision and psychology showing that vision is "intelligent" and involves elements of "problem solving." The cases of apparently intelligent interpretation sometimes cited in support of this claim do not show cognitive penetration; rather, they show that certain natural constraints on interpretation, concerned primarily with optical and geometrical properties of the world, have been com- piled into the visual system. The paper also examines a number of examples where instructions and "hints" are alleged to affect what is seen. In each case it is concluded that the evidence is more readily assimilated to the view that when cognitive effects are found, they have a locus outside early vision, in such processes as the allocation of focal attention and the identification of the stimulus.

Understanding uncertainty and reducing vulnerability : lessons from resilience thinking

Abstract: Vulnerability is registered not by exposure to hazards alone; it also resides in the resilience of the system experiencing the hazard Resilience (the capacity of a system to absorb recurrent disturbances, such as natural disasters, so as to retain essential structures, processes and feedbacks) is important for the discussion of vulnerability for three reasons: (1) it helps evaluate hazards holistically in coupled human–environment systems, (2) it puts the emphasis on the ability of a system to deal with a hazard, absorbing the disturbance or adapting to it, and (3) it is forward-looking and helps explore policy options for dealing with uncertainty and future change Building resilience into human–environment systems is an effective way to cope with change characterized by surprises and unknowable risks There seem to be four clusters of factors relevant to building resilience: (1) learning to live with change and uncertainty, (2) nurturing various types of ecological, social and political diversity for increasing options and reducing risks, (3) increasing the range of knowledge for learning and problem-solving, and (4) creating opportunities for␣self-organization, including strengthening of local institutions and building cross-scale linkages and problem-solving networks

Transnational Human Rights and Local Activism: Mapping the Middle

Abstract: How do transnational ideas such as human rights approaches to violence against women become meaningful in local social settings? How do they move across the gap between a cosmopolitan awareness of human rights and local sociocultural understandings of gender and family? Intermediaries such as community leaders, nongovernmental organization participants, and social movement activists play a critical role in translating ideas from the global arena down and from local arenas up. These are people who understand both the worlds of transnational human rights and local cultural practices and who can look both ways. They are powerful in that they serve as knowledge brokers between culturally distinct social worlds, but they are also vulnerable to manipulation and subversion by states and communities. In this article, I theorize the process of translation and argue that anthropological analysis of translators helps to explain how human rights ideas and interventions circulate around the world and transform social life.