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721.
Studying imitation learning of long sequences requires the evaluation of inaccurately and incompletely reproduced movement
sequences. In order to evaluate the movement reproduction, it has to be assigned to the original stimulus. We developed an
assignment algorithm that considers the Spatial Neighborhood and Order of reproduction (SNOA). To evaluate the features of
this analysis it was applied to human performance during learning of long pointing sequences under two conditions: stimulus-guided
reproduction with high spatial accuracy and imitation learning with low spatial accuracy. The results were compared with a
simple assignment considering Spatial Neighborhood only (SNA) and with a Manual Assignment (MA). In the stimulus-guided reproduction
the error measures did not differ between the algorithms. In contrast, with imitation learning, SNOA and MA generated higher
estimates of order and omission errors than SNA. The results show that SNOA can be used to automatically quantify the similarity
of both movement structure and metric information between long target sequences and inaccurate and incomplete movement reproductions. 相似文献
722.
723.
Christian Rominger Elisabeth M. Weiss Andreas Fink Günter Schulter Ilona Papousek 《Personality and individual differences》2011,51(8):1002-1006
This study aimed at evaluating relations between the disposition to make “meaningful” associations between random events and potentially predisposing factors related to a more “loose” cognitive control, that is, loose associative processing (allusive thinking) and poorer inhibition of irrelevant memory content. As the findings of this study suggest, individuals with a higher disposition to perceive coincidences produced a higher rate of unusual associations in the Bridge-the-Associative-Gap test than low scorers, and showed poorer inhibition of no longer relevant memory content in the Recent Probes Task. These relationships were independent from individual differences in paranormal belief. Performance in a random generation task (Mittenecker Pointing Test) yielded no support for an important role of a biased concept of randomness in the perception of coincidences. The findings suggest that common mechanisms may underlie the propensity to perceive meaningful coincidences, cognitive looseness, and positive schizotypy. 相似文献
724.
The brain’s frontal eye fields (FEF), responsible for eye movement control, are known to be involved in spatial working memory (WM).In a previous fMRI experiment (Wallentin, Roepstorff & Burgess, Neuropsychologia, 2008) it was found that FEF activation was primarily related to the formation of an object-centered, rather than egocentric, spatial reference frame. In this behavioral experiment we wanted to demonstrate a causal relationship between eye movement control and manipulation of spatial reference frames. Sixty-two participants recalled either spatial (“Was X in front of Y?”) or non-spatial (“Was X darker than Y?”) relations in a previously shown image containing two to four objects, each with an intrinsic orientation and unique luminance. During half of all recall trials a moving visual stimulus was presented, which participants had to ignore, thus suppressing eye movement. Response times were significantly slower for spatial relations with distraction while there was no effect on non-spatial relations. There was no effect on accuracy, i.e. WM maintenance. This is consistent with the hypothesis that in spatial representations the FEFs are involved in WM content manipulation, such as establishing an object-centered spatial frame of reference. 相似文献
725.
Information generally comes from less than fully reliable sources. Rationality, it seems, requires that one take source reliability into account when reasoning on the basis of such information. Recently, Bovens and Hartmann (2003) proposed an account of the conjunction fallacy based on this idea. They show that, when statements in conjunction fallacy scenarios are perceived as coming from such sources, probability theory prescribes that the "fallacy" be committed in certain situations. Here, the empirical validity of their model was assessed. The model predicts that statements added to standard conjunction problems will change the incidence of the fallacy. It also predicts that statements from reliable sources should yield an increase in fallacy rates (relative to unreliable sources). Neither the former (Experiment 1) nor the latter prediction (Experiment 3) was confirmed, although Experiment 2 showed that people can derive source reliability estimates from the likelihood of statements in a manner consistent with the tested model. In line with the experimental results, model fits and sensitivity analyses also provided very little evidence in favor of the model. This suggests that Bovens and Hartmann's present model fails to explain fully people's judgements in standard conjunction fallacy tasks. 相似文献
726.
Susanne Singer Sylvia Hohlfeld Daniel M��ller-Briel Andreas Dietz Elmar Br?hler Katharina Schr?ter Antje Lehmann-Laue 《Psychotherapeut》2011,56(5):386-393
Objectives
The aim of this study was to determine rates of psychooncological care for cancer inpatients and outpatients under routine conditions in a large University hospital. The percentage of patients who received care was analyzed and compared with self-rated and expert rated supportive care needs.Methods
The percentage of inpatients who received psychooncological care was calculated by comparing the number of cancer patients treated at the hospital as documented by the local tumor registry (n=1,979) with the number of patients treated by a psychooncologist in that hospital as documented by the hospital??s psychooncological consultation liaison service. The percentage of outpatients who received psychooncological care was calculated by comparing the number of incident cancer cases as documented by the local tumor registry (n=5,886) with the number of patients who received at least one consultation at the local tumor counseling centre. Supportive care needs were estimated by analyzing data of a prospective patient survey in the same hospital (n=1,803) using the Hospital Anxiety and Depression Scale and single items to determine social burden and the wish for emotional support.Results
The results showed that 11% of inpatients and outpatients (n=234 and n=638, respectively) received psychooncological care. Social care needs were prevalent in 37% and psychological care needs in 52% of the patients during the stay in hospital and in 42% (social and psychological) 6 months later. Of the patients 41% expressed the need to see a social worker and 29% to see a psychologist. Large differences were found between patients with different tumor entities.Conclusion
Psychooncological care delivered to cancer patients under routine conditions was below the actual rate required as estimated by screening instruments and as expressed by the patients. 相似文献727.
Andreas Karitzis 《Journal for General Philosophy of Science》2011,42(1):61-73
In this paper I question the view that realism must delineate the basic ontological furniture of the world rather than giving
arguments in semantic or epistemic terms for the existence of a mind-independent world. I call this view of stating and defending
realism the Ontological Defence of Realism (or ODR) and take Devitt’s account of realism as a paradigmatic case of ODR. I
argue that ODR cannot block ‘verificationist antirealism’ because the specific (physical) nature of what exists is not enough
to secure the mind-independence of what exists and, additionally, every element purported to achieve this, it compromises
seriously the idea that realism is primarily an ontological issue. I also stress that ODR is in tension with a plausible realist
insight namely the priority of the world over our theorizing. Because of this tension ODR weakens realism in several domains
with no good reason. Specifically, I argue that in these domains ODR faces a dilemma: either to reject realism or to take
realism to be dependent on a reductive account violating the realist insight. My point is that we should keep realism and
ontology distinct and that compliance with the realist insight initiates a better strategy for the defence of realism. I address
three possible objections thereby further clarifying my point. I conclude by presenting my view about the relation between
ontology and realism. 相似文献
728.
The impact of epilepsy on quality of life (QoL) is well-documented. The ability of epileptic seizures to alter the conscious states of patients is also well established. Although there is much research on the QoL of people with epilepsy, few researchers have looked specifically at the effect of sudden, unanticipated alterations of consciousness on QoL. This lack of systematic studies of consciousness alterations and QoL in epilepsy limits our ability to shed light on this interrelation. In this article, with these limitations in mind, we focus on studies of newer AEDs. We review the evidence as to whether a significant reduction (typically more than 50%) in seizures that induce alterations of consciousness, as a result of switching to one of the newer AEDs, leads to improvements in QoL. We draw on this literature to speculate on the relationship between ictal consciousness alterations and poor QoL in epilepsy, to identify contributory and confounding factors and to highlight implications for future research. We suggest that an understanding of how factors associated with consciousness impairment affect QoL could help the treatment and management of these patients. 相似文献
729.
Eder AB Fiedler K Hamm-Eder S 《Quarterly journal of experimental psychology (2006)》2011,64(3):517-532
Three experiments investigate illusory correlations in a feedback learning paradigm. Diverging from a standard paradigm, in which stimuli consist of joint observations of group-behaviour pairs, participants were asked to guess the group reference of positive and negative stimulus behaviours. They only knew that one group was larger than the other, and the stimulus series soon revealed that positive (negative) behaviours appeared more frequently in the stimulus series than negative (positive) behaviours. Regardless of whether feedback of the actual group reference was provided or not, the predominant valence was more strongly associated with the large than the small group. This illusory-correlation effect was evident in memory-based measures at the end of the stimulus series as well as in the online predictions during stimulus presentation. The strength of illusory correlations increased with decreasing working-memory capacity, operationalized either by an interpersonal differences measure or a cognitive-load manipulation. The occurrence of illusory correlations in the absence of joint observations about group-valence pairs (in the no-feedback condition and in the early phase of the online prediction task) can be explained as a reflection of pseudocontingency inferences. 相似文献
730.
Optimal use of assessment instruments for the detection and diagnosis of eating disorders (ED) depends on the availability of normative data. The aim of this work was to, for the first time, collect norms for both the Eating Disorder Examination Questionnaire (EDE-Q) and the newly developed Clinical Impairment Assessment (CIA) Scale from a general population of young women in Sweden, as well as from a clinical population of ED patients in Sweden. Participants were composed of both a randomized sample from the general population of women aged 18–30 years (N = 760) as well as from a clinical population aged 18–66 years (N = 2383). Data for the clinical population was extracted from the Stepwise database. Mean scores, standard deviations and percentile ranks for the global for the EDE-Q (as well as its subscales) and the CIA are presented. Prevalence figures of key eating disorder behaviors are also reported. Comparisons are made between the results in the present study with other existing normative studies on the EDE-Q and the CIA. The present study contributes to improving the accuracy of the interpretation of scores of the widely used self-report measure of ED, the EDE-Q, and the CIA, both of which play important roles in for diagnosis, prevention and intervention of ED. 相似文献