Dissent is Patriotic: Disobedient Founders, Narratives, and Street Battles

Reviewing Frederick W. Mayer, Narrative Politics: Stories and Collective Action; Robert W. T. Martin, Government by Dissent: Protest, Resistance, and Radical Democratic Theory in the Early American Republic; Lewis Perry, Civil Disobedience: An American Tradition; and Joshua C. Wilson, The Street Politics of Abortion: Speech, Violence, and America’s Culture Wars

Evidence for unusual spatial location coding in Williams syndrome: An explanation for the local bias in visuo-spatial construction tasks?

Individuals with Williams syndrome (WS) display poor visuo-spatial cognition relative to verbal abilities. Furthermore, whilst perceptual abilities are delayed, visuo-spatial construction abilities are comparatively even weaker, and are characterised by a local bias. We investigated whether this differentiation in visuo-spatial abilities can be explained by a deficit in coding spatial location in WS. This can be measured by assessing participants? understanding of the spatial relations between objects within a visual scene. Coordinate and categorical spatial relations were investigated independently in four participant groups: 21 individuals with WS; 21 typically developing (TD) children matched for non-verbal ability; 20 typically developing controls of a lower non-verbal ability; and 21 adults. A third task measured understanding of visual colour relations. Results indicated first, that the comprehension of categorical and co-ordinate spatial relations is equally poor in WS. Second, that the comprehension of visual relations is also at an equivalent level to spatial relational understanding in this population. These results can explain the difference in performance on visuo-spatial perception and construction tasks in WS. In addition, both the WS and control groups displayed response biases in the spatial tasks. However, the direction of bias differed across the groups. This finding is explored in relation to current theories of spatial location coding

Perceptual Grouping and Distance Estimates in Typical and Atypical Development: Comparing Performance across Perception, Drawing and Construction Tasks

Perceptual grouping is a pre-attentive process which serves to group local elements into global wholes, based on shared properties. One effect of perceptual grouping is to distort the ability to estimate the distance between two elements. In this study, biases in distance estimates, caused by four types of perceptual grouping, were measured across three tasks, a perception, a drawing and a construction task in both typical development (TD; Experiment 1) and in individuals with Williams syndrome (WS; Experiment 2). In Experiment 1, perceptual grouping distorted distance estimates across all three tasks. Interestingly, the effect of grouping by luminance was in the opposite direction to the effects of the remaining grouping types. We relate this to differences in the ability to inhibit perceptual grouping effects on distance estimates. Additive distorting influences were also observed in the drawing and the construction task, which are explained in terms of the points of reference employed in each task. Experiment 2 demonstrated that the above distortion effects are also observed in WS. Given the known deficit in the ability to use perceptual grouping in WS, this suggests a dissociation between the pre-attentive influence of and the attentive deployment of perceptual grouping in WS. The typical distortion in relation to drawing and construction points towards the presence of some typical location coding strategies in WS. The performance of the WS group differed from the TD participants on two counts. First, the pattern of overall distance estimates (averaged across interior and exterior distances) across the four perceptual grouping types, differed between groups. Second, the distorting influence of perceptual grouping was strongest for grouping by shape similarity in WS, which contrasts to a strength in grouping by proximity observed in the TD participants

Ethical dilemmas in researching sensitive issues online: lessons from the study of British disability dissent networks

This paper presents an unconventional approach to the resolution of the key ethical dilemmas raised by the study of politically charged personal content posted on social media. In particular, this study suggests that Internet research ethics should remain informed by the disciplinary perspectives of those who study online communities. Hence, Internet scholars must build on established ethical practices from their respective disciplines in such a way as to address these ‘human-centred’ ethical issues. A ‘medium-cloaked’ strategy towards data anonymization was adopted for this study of the comments posted on the Facebook pages of UK disability rights groups. Key themes were typically conveyed without the disclosure of personally identifiable information and direct quotes were only used if they could not be located using a search engine. The rationale for such an approach is elucidated in order to identify the limitations in the ways in which such ethical issues are dealt with in existing guidelines in this area. The paper suggests that the automatic categorization of disabled people and others experiencing disadvantage as ‘vulnerable groups’ in many of these protocols might further disempower these stakeholders through the omission of their personal stories from relevant scholarship. A more nuanced approach towards the protection of user privacy is advocated; one that allows for the use of direct quotes when it is unlikely to prove harmful to the user but also sets out to provide the maximum level of anonymity possible for those who divulge sensitive information in these semi-public spaces

Dissent is Patriotic: Disobedient Founders, Narratives, and Street Battles

Reviewing Frederick W. Mayer, Narrative Politics: Stories and Collective Action; Robert W. T. Martin, Government by Dissent: Protest, Resistance, and Radical Democratic Theory in the Early American Republic; Lewis Perry, Civil Disobedience: An American Tradition; and Joshua C. Wilson, The Street Politics of Abortion: Speech, Violence, and America’s Culture Wars

Neurologic and hematologic sequalae following a timber rattlesnake (Crotalus horridus) envenomation in a dachshund

A 2-year-old female Dachshund had a witnessed timber rattlesnake envenomation. Although rattlesnake envenomations are a common, potentially life-threatening event in companion animals, timber rattlesnake envenomations in the dog are rarely reported. This dog described in this case report had significant hematologic and neurologic clinical derangements consistent with Types A and B rattlesnake venom and a suspected hypersensitivity reaction to the venom. This patient was treated aggressively with antivenom and fully recovered without any persistent neurologic signs at follow-up