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101.
Evangelia-Chrysanthi Kouklari Trevor Thompson Claire P. Monks Stella Tsermentseli 《Journal of cognition and development》2017,18(4):399-418
Previous research has clearly demonstrated that autism spectrum disorder (ASD) involves deficits in multiple neuropsychological functions, such as executive function (EF) and theory of mind (ToM). A conceptual distinction is commonly made between cool and hot EF. In ASD, continued attention has been paid to the cool areas of executive dysfunction. Cool EF has been strongly related to ToM, but research has not taken into account the association between hot EF and ToM in ASD. The present study investigated the associations between hot and cool EF and ToM in 56 school-aged children with ASD and 69 controls on tasks tapping cool EF (i.e., working memory, inhibition, planning), hot EF (i.e., affective decision making, delay discounting), and ToM (i.e., mental state/emotion recognition and false belief). Significant group differences in each EF measure support an executive dysfunction in both domains in ASD. Strong associations between delay discounting and ToM mental state/emotion recognition were found, suggesting that hot EF makes a unique contribution to ToM above and beyond cool EF in typical development and ASD. This study improves understanding of the profile of higher-order cognitive deficits in children with ASD, which may inform diagnosis and intervention. 相似文献
102.
A microswitch‐based program for promoting initial ambulation responses: An evaluation with two girls with multiple disabilities
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Fabrizio Stasolla Alessandro O. Caffò Viviana Perilli Adele Boccasini Anna Stella Rita Damiani Vincenza Albano Concetta Damato 《Journal of applied behavior analysis》2017,50(2):345-356
We assessed the use of a microswitch‐based program for promoting ambulation responses by two children with multiple disabilities. The goals of the study were to: (a) evaluate the importance of the contingency between the target behavior (forward step) and the programmed consequence (preferred stimuli), (b) measure effects of the intervention on indices of happiness, and (c) assess the social validation of the procedure using 20 physiotherapists as external raters. The intervention involved the automatic delivery of preferred stimuli contingent on forward steps. Results showed that both participants improved their performance (forward steps and indices of happiness) during contingent reinforcement phases compared to baseline and noncontingent reinforcement phases. Moreover, physiotherapists rated the intervention as socially valid. 相似文献
103.
Huttenlocher J Hedges LV Lourenco SF Crawford LE Corrigan B 《Journal of experimental psychology. General》2007,136(3):502-519
In this article, the authors present and test a formal model that holds that people use information about category boundaries in estimating inexactly represented stimuli. Boundaries restrict stimuli that are category members to fall within a particular range. This model posits that people increase the average accuracy of stimulus estimates by integrating fine-grain values with boundary information, eliminating extreme responses. The authors present 4 experiments in which people estimated sizes of squares from 2 adjacent or partially overlapping stimulus sets. When stimuli from the 2 sets were paired in presentation, people formed relative size categories, truncating their estimates at the boundaries of these categories. Truncation at the boundary of separation between the categories led to exaggeration of differences between stimuli that cross categories. Yet truncated values are shown to be more accurate on average than unadjusted values. 相似文献
104.
Using geometry to specify location: implications for spatial coding in children and nonhuman animals
The study of spatial cognition has benefited greatly from a technique known as the disorientation procedure. This procedure
was originally used with rats to show that they relied on the geometry of an enclosed space to locate a target hidden in that
space. Disorientation has since been used with a variety of mobile animals, including human children, to examine the coding
of geometric information. Here, we focus mostly on our recent work with young children. We examine a set of issues concerning
reorientation—namely, the nature of geometric coding, the processes invoked by disorientation, and the developmental origins
of using geometric information to determine location. We have employed a variety of methods to examine these issues; the methods
include analyzing search behaviors, using spaces of different shapes, varying viewing position, and comparing different disorientation
procedures. The implications for how children and nonhuman animals code geometric information are discussed. 相似文献
105.
106.
F. Pieruccini-Faria R. Vitório Q. J. Almeida C. R. A. Silveira M. J. D. Caetano F. Stella 《Journal of motor behavior》2013,45(5):369-380
The influence of dopaminergic replacement (DR) on gait in people with Parkinson's disease (PD) is well documented. However, little is known about the acute effects of dopamine on more complex locomotor tasks that require visual guidance to avoid obstacles during gait. The authors investigated the influence of DR on locomotor behavior in a task where movement planning and control might be challenged by the height of the obstacle. The PD group included patients diagnosed with idiopathic PD (n = 12), as well as healthy controls (n = 12). Patients walked and stepped over obstacles of different heights before (OFF) and after (ON) levodopa intake. Spatial adjustments were not modulated by DR, but the step time to perform these anticipatory gait adjustments was longer only in PD-OFF (compared with healthy controls) when approaching the highest obstacle, but not PD-ON. During the crossing phase, trail limb toe clearance of PD patients was shorter than healthy controls only during the OFF state. ON-OFF comparisons were significantly different only for the time to reach the lead foot clearance over the highest obstacle. In summary, DR partially improved movement slowness but did not directly affect movement amplitude of lower limb regulation in this gait task. 相似文献
107.
Stella Sai-Chun Lau 《文化与宗教》2013,14(1):77-92
In this article, I trace the shifting theorisation of religious conflict to argue that religious conflict in the USA is shaped by a dialectic of religious and secular movements. Church-sect theory, which was originally a class-based theoretical framework, was appropriated by the rational choice approach in the sociology of religion, which instead privileged competition in a religious marketplace. Ernst Troeltsch described divisions between church and sect, but H. Richard Niebuhr demarcated a denominational divide in the USA based on class, region, ethnicity and race. In the 1980s, Wade Clark Roof and William McKinney, Robert Wuthnow and James Davison Hunter observed that the differences in the US were no longer necessarily between denominations but could occur within denominations. For them, what had become known as the Culture Wars were based on a conflict between religious liberals/progressives and religious conservatives/orthodox. This conflict is shaped by a dialectic of secular and religious movements and counter-movements. 相似文献
108.
We test whether comparison can promote learning of new relational abstractions. In Experiment 1, preschoolers heard labels for novel spatial patterns and were asked to extend the label to one of two alternatives: one sharing an object with the standard or one having the same relational pattern as the standard. Children strongly preferred the object match when given one standard but were significantly more likely to choose the relational match when they compared two standards. Experiment 2 provided evidence that comparison processing—as opposed to simply seeing two exemplars—is necessary for this relational effect. Preschoolers who were shown the two standards sequentially without a prompt to compare them preferred object matches, as did those who viewed only one standard. In contrast, those who saw the exemplars together, with a prompt to compare them, showed the same elevated relational responding as found in Experiment 1. We suggest that structural alignment processes are crucial to developing new relational abstractions. 相似文献
109.
Abstract The cognitive model of social anxiety disorder (SAD) assumes that cognitive biases are important maintaining factors of the disorder. Research and theory have highlighted the impact of cognitive self-regulatory processes on affect, but have not sufficiently focused on the influence of affect on self-regulatory cognitions. The present study examined the influence of affect on cognitive self-regulatory mechanisms in SAD by focusing on one critical cognitive bias, estimated social cost. Individuals with SAD (N=48) and non-anxious controls (N=48) were randomly assigned to one of three experimental, affect induction conditions (negative, positive, or neutral) before giving a 10-minute impromptu, videotaped speech. As expected, the affect manipulation resulted in changes in estimated social cost. However, this effect was not specific to individuals with SAD. Participants in the positive affect condition in both groups had the highest social cost estimates post-speech challenge. These results suggest that social cost bias is dependent on the affective state in both individuals with SAD and controls. 相似文献
110.
Flávia Gomes de Melo Coelho Florindo Stella Larissa Pires de Andrade Fabio Augusto Barbieri Ruth Ferreira Santos-Galduróz Sebastião Gobbi 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2013,20(5):644-656
ABSTRACT The decline in frontal cognitive functions contributes to alterations of gait and increases the risk of falls in patients with dementia, a category which included Alzheimer's disease (AD). The objective of the present study was to compare the gait parameters and the risk of falls among patients at different stages of AD, and to relate these variables with cognitive functions. This is a cross-sectional study with 23 patients with mild and moderate AD. The Clinical Dementia Rating was used to classify the dementia severity. The kinematic parameters of gait (cadence, stride length, and stride speed) were analyzed under two conditions: (a) single task (free gait) and (b) dual task (walking and counting down). The risk of falls was evaluated using the Timed Up-and-Go test. The frontal cognitive functions were evaluated using the Frontal Assessment Battery (FAB), the Clock Drawing Test (CDT) and the Symbol Search Subtest. The patients who were at the moderate stage suffered reduced performance in their stride length and stride speed in the single task and had made more counting errors in the dual task and still had a higher fall risk. Both the mild and the moderate patients exhibited significant decreases in stride length, stride speed and cadence in the dual task. Was detected a significant correlation between CDT, FAB, and stride speed in the dual task condition. We also found a significant correlation between subtest Similarities, FAB and cadence in the dual task condition. The dual task produced changes in the kinematic parameters of gait for the mild and moderate AD patients and the gait alterations are related to frontal cognitive functions, particularly executive functions. 相似文献