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91.
Stereokinetic illusions have never been investigated in non-human primates, nor in other mammalian species. These illusions
consist in the perception of a 3D solid object when certain 2D stimuli are rotated slowly in the plane perpendicular to the
line of sight. The ability to perceive the stereokinetic illusion was investigated in the common marmoset (Callithrix jacchus). Four adult marmosets were trained to discriminate between a solid cylinder and a solid cone for food reward. Once learning
criterion was reached, the marmosets were tested in sets of eight probe trials in which the two solid objects used at training
were replaced by two rotating 2D stimuli. Only one of these stimuli produced, at least to the human observer, the stereokinetic
illusion corresponding to the solid object previously reinforced. At test, the general behaviour and the total time spent
by the marmosets observing each stimulus were recorded. The subjects stayed longer near the stimulus producing the stereokinetic
illusion corresponding to the solid object reinforced at training than they did near the illusion corresponding to the previously
non-rewarded stimulus. Hence, the common marmosets behaved as if they could perceive stereokinetic illusions. 相似文献
92.
Studia Logica - In this article we present a technique for selecting models of set theory that are complete in a model-theoretic sense. Specifically, we will apply Robinson infinite forcing to the... 相似文献
93.
Animal Cognition - Birds have been widely used to study spatial orientation. However, since different birds rely on different types of visual information to find goal locations (such as spatial... 相似文献
94.
Massimiliano Conson Francesca Pistoia Marco Sarà Dario Grossi Luigi Trojano 《Brain and cognition》2010
Several lines of evidence demonstrate that the motor system is involved in motor simulation of actions, but some uncertainty exists about the consequences of lesions of descending motor pathways on mental imagery tasks. Moreover, recent findings suggest that the motor system could also have a role in recognition of body parts. To address these issues in the present study we assessed patients with a complete damage of descending motor pathways (locked-in syndrome, LIS) on the hand laterality task, requiring subjects to decide whether a hand stimulus in a given spatial orientation represents a left or a right hand. LIS patients were less accurate than healthy controls in judging hand laterality; more importantly, LIS patients’ performance was modulated by spatial orientation of hand stimuli whereas it was not affected by biomechanical constraints. These findings demonstrate a dissociation between spared hand recognition and impaired access to action simulation processes in LIS patients. 相似文献
95.
Giorgio P Fuggetta 《Child neuropsychology》2006,12(1):1-21
The main aim of the present study is to compare the efficiency of executive control processes in 24 boys with attention deficit/hyperactivity disorder (ADHD) and 58 normal controls of similar age (between 8 and 11 years). Three reaction time (RT) paradigms were utilized: a dual task that requires coordination of two tasks responses, a shift task that makes it necessary to disengage attention from one task and engage into another one, and a stimulus-response spatial compatibility task that requires participants to inhibit a prepotent response. Another purpose of the study is to examine whether Barkley's (1997) executive dysfunction or Sergeant et al.'s (1999) resource allocation/arousal model best account for the behavioral deficits associated with ADHD. Examination of raw RT data showed significantly poorer performance in ADHD children with respect to age-matched controls on both the higher-level cognitive functions of executive control and on lower-level abilities (e.g., speed of processing) of all tasks of this study. However, using proportional transformations of raw RT data, we could demonstrate that, in addition to differences in processing speed, also executive control processes were significantly impaired in children with ADHD. 相似文献
96.
97.
This article seeks to draw attention to some of the core issues which beset the study of Sikh nationalism as a coherent phenomenon in an increasingly globalized and socially fragmented world. First, it highlights the importance of revisiting the debate about the community's religious boundaries, arguing that in contrast to the new conventional wisdom informed by poststructuralism, Sikh identity has exhibited a remarkable degree of continuity from the establishment of the Khalsa in comparison with other South Asian religio-political communities. The second key issue highlighted is the role of the Sikh diaspora in the development of Sikh nationalism and statehood. It critically examines the extent to which diaspora may be regarded as an instrument of ‘long-distance’ nationalism. Third, it argues that the existing literature on Sikh nationalism is remarkably community-centric and needs to engage with theories of nationalism. Finally, while acknowledging the cleavages which fragment the Sikh nation, it concludes that Sikh nationalism has been remarkably cohesive. 相似文献
98.
Studia Logica - We present a generalization of the algebra-valued models of $$\mathrm {ZF}$$ where the axioms of set theory are not necessarily mapped to the top element of an algebra, but may get... 相似文献
99.
Kathryn B. Francis Michaela Gummerum Giorgio Ganis Ian S. Howard Sylvia Terbeck 《British journal of psychology (London, England : 1953)》2018,109(3):442-465
Recent advances in virtual technologies have allowed the investigation of simulated moral actions in aversive moral dilemmas. Previous studies have employed diverse populations to explore these actions, with little research considering the significance of occupation on moral decision-making. For the first time, in this study we have investigated simulated moral actions in virtual reality made by professionally trained paramedics and fire service incident commanders who are frequently faced with and must respond to moral dilemmas. We found that specially trained individuals showed distinct empathic and related personality trait scores and that these declined with years of experience working in the profession. Supporting the theory that these professionals develop resilience in moral conflict, reduced emotional arousal was observed during virtual simulations of a distressing dilemma. Furthermore, trained professionals demonstrated less regret following the execution of a moral action in virtual reality when compared to untrained control populations. We showed that, contrary to previous research, trained individuals made the same moral judgements and moral actions as untrained individuals, though showing less arousal and regret. In the face of increasing concerns regarding empathy decline in health care professionals, we suggest that the nature of this decline is complex and likely reflects the development of a necessary emotional resilience to distressing events. 相似文献
100.
Angelo Compare Hilary Maxwell Agostino Brugnera Cristina Zarbo Riccardo Dalle Grave Giorgio A. Tasca 《International journal of group psychotherapy》2018,68(3):385-406
The current study examines change in attachment variables from pre- to six months post-emotionally focused group therapy (EFGT) for binge eating disorder (BED). A clinical sample of 118 women and men with BED attended 20 sessions of EFGT and completed the Adult Attachment Interview pre- and six months post-treatment. There was a significant increase in secure attachment style classification, significant increases in Coherence of Mind and Reflective Functioning scores, and significant decreases in both unresolved/disorganized attachment style classification and scale scores from pre- to six months post-treatment. Interventions specific to EFGT, common therapeutic factors and group process interventions may have contributed to changes in these attachment variables. The current study demonstrated that EFGT is a promising treatment for facilitating change in attachment in women and men with BED. 相似文献