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191.
Francesca Foti Deny Menghini Paolo Alfieri Floriana Costanzo Laura Mandolesi Laura Petrosini Stefano Vicari 《Developmental science》2018,21(5)
New skills may be learned by active experience (experiential learning or learning by doing) or by observation of others’ experience (learning by observation). In general, learning by observation reduces the time and the attempts needed to learn complex actions and behaviors. The present research aimed to compare learning by observation and learning by doing in two clinical populations with different etiology of intellectual disability (ID), as individuals with Down syndrome (DS) and individuals with Williams syndrome (WS), with the hypothesis that specific profiles of learning may be found in each syndrome. To this end, we used a mixture of new and existing data to compare the performances of 24 individuals with DS, 24 individuals with WS and 24 typically developing children on computerized tasks of learning by observation or learning by doing. The main result was that the two groups with ID exhibited distinct patterns of learning by observation. Thus, individuals with DS were impaired in reproducing the previously observed visuo‐motor sequence, while they were as efficient as TD children in the experiential learning task. On the other hand, individuals with WS benefited from the observational training while they were severely impaired in detecting the visuo‐motor sequence in the experiential learning task (when presented first). The present findings reinforce the syndrome‐specific hypothesis and the view of ID as a variety of conditions in which some cognitive functions are more disrupted than others because of the differences in genetic profile and brain morphology and functionality. These findings have important implications for clinicians, who should take into account the genetic etiology of ID in developing learning programs for treatment and education. 相似文献
192.
Bayesian inference for graphical factor analysis models 总被引:1,自引:0,他引:1
We generalize factor analysis models by allowing the concentration matrix of the residuals to have nonzero off-diagonal elements.
The resulting model is named graphical factor analysis model. Allowing a structure of associations gives information about
the correlation left unexplained by the unobserved variables, which can be used both in the confirmatory and exploratory context.
We first present a sufficient condition for global identifiability of this class of models with a generic number of factors,
thereby extending the results in Stanghellini (1997) and Vicard (2000). We then consider the issue of model comparison and
show that fast local computations are possible for this purpose, if the conditional independence graphs on the residuals are
restricted to be decomposable and a Bayesian approach is adopted. To achieve this aim, we propose a new reversible jump MCMC
method to approximate the posterior probabilities of the considered models. We then study the evolution of political democracy
in 75 developing countries based on eight measures of democracy in two different years.
We acknowledge support from M.U.R.S.T. of Italy and from the European Science Foundation H.S.S.S. Network. We are grateful
to the referees and the Editor for many useful suggestions and comments which led to a substantial improvement of the paper.
We also thank Nanny Wermuth for stimulating discussions and Kenneth A. Bollen for kindly providing us with the data-set. 相似文献
193.
Paolo Riva James H. Wirth Kipling D. Williams 《European journal of social psychology》2011,41(6):681-687
Current theories suggest that social and physical pain overlap in their neurological and physiological outcomes. We investigated how social and physical pain overlap in their psychological responses by testing the hypothesis that both social and physical pain would thwart satisfaction on four human needs, worsen mood, and increase desire to aggress. In Experiment 1, recalling an experience of social or physical pain produced overlapping effects in the form of thwarted self‐esteem and control needs and increased negative affect and desire to aggress. In Experiment 2, we induced social (Cyberball ostracism) or physical pain (cold pressor) within the laboratory session, and found that both pain types produced feelings of being ignored and excluded, and thwarted belonging, self‐esteem, control, and meaningful existence. Our results provide further support to pain overlap theories and indicate that social and physical pain cause common psychological consequences, resulting in new ways to understand and manage pain. Copyright © 2011 John Wiley & Sons, Ltd. 相似文献
194.
Marco Brambilla Patrice Rusconi Simona Sacchi Paolo Cherubini 《European journal of social psychology》2011,41(2):135-143
Research on the two fundamental dimensions of social judgment, namely warmth and competence, has shown that warmth has a primary and a dominant role in information gathering about others. In two studies we examined whether the sociability and morality components of warmth play distinct roles in such a process. Study 1 (N = 60) investigated which traits were mostly selected when forming impressions about others. The results showed that, regardless of the task goal, traits related to morality and sociability were differently processed. Furthermore, participants were more interested in obtaining information about morality than about sociability when asked to form a global impression about others. Study 2 (N = 98) explored the adoption of asymmetric/symmetric strategies when asking questions to make inferences on others. As predicted, participants adopted an asymmetrically disconfirming strategy on morality traits, while they looked for more symmetrical evidence on sociability or competence traits. Overall, our findings indicated a distinct and a dominant role of the moral component of warmth in the information‐gathering process. Copyright © 2010 John Wiley & Sons, Ltd. 相似文献
195.
Fonda P 《The International journal of psycho-analysis》2011,92(3):695-713
This is a short outline of the development of psychoanalysis and of analytic training in Eastern Europe after the fall of the Iron Curtain. The Han Groen Prakken Psychoanalytic Institute for Eastern Europe was founded by the IPA and the EPF in 2002 to organize and coordinate this. The activity of such an unusual training institute, virtual and time-limited up to the birth of new IPA study groups, is described with the problems it has had to face, from shuttle analysis to research of this unusual training, from initial outreach activity to formation of new analytic groups, from unavoidable plurality of analytic approaches of an international staff to the need for systematic teaching, from criteria for selection of candidates in such a large area with many languages, cultures and histories, to the integration of new analysts and groups in the international analytic community. These problems are part of the challenge implicit in the globalization, with its unavoidable push to enlarge to the whole humanity the psychoanalytic theory and praxis. Such an experience is now used in Latin America, but may also soon have its application in other continents. Freedom of mind is a basic need of all humans and psychoanalysis still has much to say about this. 相似文献
196.
Gardini S Concari L Pagliara S Ghetti C Venneri A Caffarra P 《Behavioural neurology》2011,24(2):123-132
This study investigated the cognitive profile and the cerebral perfusion pattern in a highly educated 70 year old gentleman with posterior cortical atrophy (PCA). Visuo-perceptual abilities, spatial memory, spatial representation and navigation, visuo-spatial mental imagery, semantic and episodic-autobiographical memory were assessed. Regional cerebral blood flow (rCBF) was imaged with SPECT. Cognitive testing showed visual-perceptual impairment, apperceptive visual and landmark agnosia, topographical disorientation with way-finding deficits, impaired map learning and poor mental image generation. Semantic memory was normal, while episodic-autobiographical memory was impaired. Reduced rCBF was found mainly in the right hemisphere, in the precentral gyrus, posterior cingulate and middle temporal gyri, cuneus and precuneus, in the left superior temporal and lingual gyri and in the parahippocampus bilaterally. Hypoperfusion in occipito-parietal regions was associated with visuo-spatial deficits, whereas deficits in visuo-spatial mental imagery might reflect dysfunction related to hypoperfusion in the parahippocampus and precuneus, structures which are responsible for spatial and imagery processing. Dissociating performance between preserved semantic memory and poor episodic-autobiographical recall is consistent with a pattern of normal perfusion in frontal and anterior temporal regions but abnormal rCBF in the parahippocampi. The present findings indicate that PCA involves visuo-spatial imagery deficits and provide further validation to current neuro-cognitive models of spatial representation and topographical disorientation. 相似文献
197.
Attention is often conceived as a gateway to consciousness (Posner, 1994). Although endogenous spatial attention may be independent of conscious perception (CP) (Koch Tsuchiya, 2007), exogenous spatial orienting seems instead to be an important modulator of CP (
[Chica et al., 2010]
and Chica, Lasaponara, et al., 2011). Here, we investigate the role of auditory alerting in CP in normal observers. We used a behavioral task in which phasic alerting tones were presented either at unpredictable or at predictable time intervals prior to the occurrence of a near-threshold visual target. We find, for the first time in neurologically intact observers, that phasic alertness increases CP, both objectively and subjectively. This result is consistent with evidence showing that phasic alerting can ameliorate the spatial bias exhibited by visual neglect patients (Robertson, Mattingley, Rorden, & Driver, 1998). The alerting network may increase the activity of fronto-parietal networks involved in top-down amplification required to bring a stimulus into consciousness (Dehaene, Changeux, Naccache, Sackur, & Sergent, 2006). 相似文献
198.
Paolo Sandro 《Res Publica》2011,17(4):343-354
This paper presents in outline Luigi Ferrajoli’s axiomatic and general theory of law, as developed in his lifelong work Principia Iuris. The first section focuses on the three main aspects of the theory: the methodological, the theoretical and the pragmatic,
which respectively represent the theory’s syntax, semantics and its pragmatics. Ferrajoli identifies three deontic gaps of
norms: firstly, the one between their validity and efficacy; secondly, the one between their justice and validity; and finally, and most importantly, the one between validity and existence (i.e. normative force). The presence of such gaps is, according to Ferrajoli, the extraordinary innovation that entrenched
constitutions have brought into modern legal systems, by establishing norms that are superior to statutes and case law. In
this sense, all normative phenomena (except for the constitution itself) can be conceived both as norms and as facts. In the
second section the role of juridical science is briefly discussed. 相似文献
199.
Beauchamp MR Rhodes RE Hua S Morton KL Kreutzer C Liang JA Khou KY Dominelli PB Daoud DM Sherman MF Dunlop WL Sheel AW 《Psychology, health & medicine》2011,16(4):405-417
It has been suggested that the well-known health benefits associated with exercise can be explained by a placebo effect, and that greater effort should be given to convince people that their current behaviors have desirable health consequences. The overall purpose of this study was to test the efficacy of this "mind-set matters" hypothesis through the use of an expectancy-based intervention with adolescents. The study involved a four week randomized controlled trial with 348 Grade 9 adolescents (M (age)?=?14.07 yrs, SD?=?0.30), from four high schools, taking part in either a placebo-intervention condition (n?=?188) or a control condition (n?=?160). Participants in the placebo-intervention condition were informed that what they are already doing in school physical education lessons fulfills current recommendations for an active lifestyle. Participants in the control condition were not given this information. Four weeks after the intervention, adolescents in the placebo-intervention condition did not demonstrate significant changes in physiological health-related measures (diet, weight, body mass index, percentage body fat, heart rate, mean arterial pressure). The findings question the external validity of the "mind-set matters" hypothesis with adolescents, and suggest that simply encouraging adolescents to believe that they are healthy may not enable them to respond with improved indicators of physical health. 相似文献
200.
Russo FA Ammirante P Fels DI 《Journal of experimental psychology. Human perception and performance》2012,38(4):822-826
Five experiments investigated the ability to discriminate between musical timbres based on vibrotactile stimulation alone. Participants made same/different judgments on pairs of complex waveforms presented sequentially to the back through voice coils embedded in a conforming chair. Discrimination between cello, piano, and trombone tones matched for F0, duration, and magnitude was above chance with white noise masking the sound output of the voice coils (Experiment 1), with additional masking to control for bone-conducted sound (Experiment 2), and among a group of deaf individuals (Experiment 4a). Hearing (Experiment 3) and deaf individuals (Experiment 4b) also successfully discriminated between dull and bright timbres varying only with regard to spectral centroid. We propose that, as with auditory discrimination of musical timbre, vibrotactile discrimination may involve the cortical integration of filtered output from frequency-tuned mechanoreceptors functioning as critical bands. (PsycINFO Database Record (c) 2012 APA, all rights reserved). 相似文献