1,720,996 research outputs found
Cognitive and Metacognitive Abilities Involved in the Solution of Mathematical Problem Solving: Validation of a Comprehensive Model
No full textLIMITS AND MEANINGS TO THE CHALLENGING TERRITORY OF MEDIUMSHIP A QUALITATIVE STUDY WITH GRIEVERS
No full textThe loss of a loved one causes great upheaval in people’s lives, and the bereaved may turn to unconventional methods to feel closer to the deceased, such as relying on a medium. The aim of this study was to investigate this experience and its effects. A qualitative research design involving five participants was applied through interpretative phenomenological analysis. Four main thematic areas emerged: the motivations that led participants to seek support from a medium, their experiences during the encounter, friends’ and relatives’ views on mediumship, and changes in the grieving process. Despite the various reasons that led the bereaved to ask for a mediumistic consultation, almost all participants believe the experience helped them overcome their grief
Left hemisphere superiority for visuospatial functions in left-handers
No full textMale and female left- and right-handers have been tested with a divided visual field technique on a visuospatial (discrimination of angle width) and on a verbal task (vowel-consonant discrimination) using either a choice or a Go-No-go manual reaction time paradigm. Right-handers showed the expected pattern of hemispheric asymmetries with an advantage of the right hemisphere in the visuospatial task and an advantage of the left hemisphere in the verbal task. Such effects were statistically reliable only in male subjects. Left-handers, on the contrary, showed a different pattern of asymmetries. In the visuospatial task there was an overall superiority of the left hemisphere, while no hemispheric asymmetry was found in the verbal task
Erratum: Training numerical skills with the adaptive videogame “The Number Race”: A randomized controlled trial on preschoolers (Trends in Neuroscience and Education (2016) 5(1) (20–29) (S2211949316300035) (10.1016/j.tine.2016.02.002))
No full textErratum: In the paper by Sella, Tressoldi, Lucangeli & Zorzi (2016), the effect of Group in the ANCOVA for the Semantic subscale (p. 25) was associated with a p-value of.0546, instead of the reported.05, thereby approaching significance. This amendment does not affect the conclusions drawn in the article. We also note that assuming the Student's t-distribution would have been more appropriate than the normal distribution for computing the improvement index for the Mental Calculation scale, because the sample size (only for the latter scale) was below 30. Accordingly, the reported value of 44 would decrease to 43, without affecting the conclusions of the study. Finally, although clearly stated in the published article, we reiterate that Figure 2 (p. 25) shows the median and the 95% limits of the distribution of the improvement indexes obtained using a bootstrap procedure and not the results of the ANCOVAs
Heart rate differences between targets and non targets in intuition tasks
No full textThis study reports the results of one experiment and a replication, aimed at investigating heart rate changes related to a pure intuition task. In each experiment, twelve subjects were required to guess which of the four pictures presented in sequence for about 10 seconds, was the target. Each subject performed 20 trials. In each trial the target was automatically selected using a pseudo-random algorithm. Heart rate was recorded (see Method section for details) during the pictures presentation. In the first experiment, a statistical significant increment of heart rate associated to targets with respect non targets was observed. The replication experiment with new twelve subjects confirmed the data obtained in the main experiment. These findings support the hypothesis that heart rate is related not only to overt but also to covert cognitive activity such as that involved in intuition tasks, giving convergent evidence to the models describing our intuitive cognitive activity as a double, partial independent information processing system
Training numerical skills with the adaptive videogame “The Number Race”: A randomized controlled trial on preschoolers.
No full text
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
- …
