1,721,002 research outputs found
The vulnerability of insecure minds: The mediating role of mentalization in the relationship between attachment styles and psychopathology
No full textInsecure attachment is linked to mentalizing difficulties and psychopathology. The current study aimed to examine if failures in mentalization, as observed in the form of uncertainty about mental states, mediated the relationship between attachment styles and global psychopathology in a group of 812 adults (66.5% females) from the community. Participants completed measures on attachment styles, uncertainty about mental states, and clinical symptoms. The authors found that uncertainty about mental states was a partial mediator of the associations between attachment styles and psychopathology. Furthermore, the findings supported the role of secure attachment in protecting from mentalization failures and psychopathology; on the contrary, increased scores on attachment styles involving a negative view of the self (preoccupied and fearful attachment styles) predicted high levels of uncertainty about mental states and psychopathology. Accordingly, clinicians may wish to promote mentalizing abilities in individuals who display a negative view of the self embedded in their attachment styles
Right Inverses of linear maps on convex sets
No full textWe study, via continuous selections of multivalued maps, the problem of finding a right inverse to the restriction of a linear map to a convex body.
Let be a convex body in a finite dimensional real space and let a (continuous) linear surjection, where is also a real vector space. We address here the problem of finding a continuous function such that for every (i.e. a right inverse of the restriction ). This has interesting applications: for example, when with and convex body in and the sum in , can we find with ? \\We try to partially solve these kind of problem using convex closed multivalued mappings and in particular Michael theorem
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Impulsivity and alexithymia in virtual worlds: A study on players of World of Warcraft
No full textObjective: Symptoms of problematic Internet use (PIU) may be increased in people who display an excessive involvement in Massively Multiplayer Online Role-Playing Games (MMORPGs). Notably, impulsivity and alexithymia have not been investigated together in the literature addressing the predictors of PIU among gamers, despite evidence that these personality traits may play a pivotal role in the development of problematic gaming patterns. The purpose of this research was to explore the relationship between facets of alexithymia and impulsivity and PIU scores among MMORPG players. Method: In the current study, 364 World of Warcraft (WoW) players (272 males, 74.7%) aged 18 to 48 years old provided socio-demographic information and completed questionnaires on PIU, time spent online playing WoW, alexithymia, and impulsivity. Results: PIU scores were negatively associated with age and positively associated with alexithymia scores, impulsivity scores, and time spent online playing WoW. A linear regression analysis showed that PIU scores were predicted by time spent online playing WoW, the alexithymic features concerning difficulties identifying and describing feelings, and attentional impulsivity. Conclusions: Our findings suggest that MMORPG players with difficulties concerning affect awareness and a tendency to be distracted by novel stimuli may spend an excessive amount of time playing video games and may also show prominent symptoms of PIU
Rehabilitation Monitoring of Post-Laryngectomy Patients through the Extraction of Vocal Parameters
No full textThis paper deals with the analysis of substitution voices of post-laryngectomy patients with the aim of identifying a methodology to track the effectiveness of rehabilitation therapies. The available data-set includes 22 patients that had undergone Open Partial Horizontal Laryngectomy (OPHL) of type II and 10 patients that had undergone OPHL of type III. A pre-processing algorithm that relies on the spectral kurtosis has been designed to remove non-harmonic frames from the available recordings of patients, thus minimizing the number of outliers among the extracted parameters. Such an algorithm has been tuned starting form the results of a control group of 10 healthy subjects. After this preliminary step, from the harmonic frames a series of parameters have been extracted that belong to spectral domain (tilt, kurtosis, entropy and Soft Phonation Index) and cepstral domain (Mel-Frequency Cepstral Coefficients, MFCCs, and Cepstral Peak Prominence Smoothed, CPPS). Then, the patients have been subdivided into two classes according to the index I (Intelligibility) of the auditory perceptual scale INFVo and a Kolmogorov-Smirnov two-samples test has been run, which has highlighted that low-band MFCCs, spectral entropy and spectral kurtosis show the best discrimination capability of substitution voices. This outcome has been confirmed by an alternative method that is based on the performance of classification algorithms. A classification accuracy of about 81% has been obtained using a logistic regression model that was trained with median of MFCC3, range of MFCC4 and 95° percentiles of MFCC6 and MFCC9. The same accuracy has been provided by a coarse decision tree algorithm trained with skewness of MFCC1, median of MFCC3 and 95° percentile of spectral entropy
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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
Childhood trauma, attachment and psychopathology: A correlation network approach
No full textConsistent evidence supports the view that childhood trauma is linked with insecure attachment styles and psychopathology. However, it is a matter of debate how different forms of child maltreatment may relate with dimensions of anxiety and avoidance in attachment relationships and may foster specific configurations of clinical symptoms. Accordingly, examining the associations between childhood trauma, insecure attachment and psychopathology from a correlation network perspective may serve to fill a relevant gap in the literature. Three-hundred fifty-two adults aged between 18 and 73 years old (M= 32.70; SD = 11.72) completed measures on child maltreatment, attachment styles and psychopathology. A regularized partial correlation network was estimated to examine the relationships between the three constructs. The network showed 101 out of 190 nonzero correlations linking childhood traumatic experiences, anxious and avoidant attachment dimensions, and clinical symptoms. The analysis of the network showed that being exposed to emotional abuse and emotional neglect increased the risk of being exposed to other types of childhood trauma, such as physical abuse. Anxious attachment was more strongly linked to child maltreatment and psychopathology than avoidant attachment. Suicidal ideation and maladaptive personality functioning were the clinical symptoms most strongly connected with the other variables in the network. These findings might be relevant for the assessment and treatment of individuals who display clinical problems related to insecure attachment and early relational trauma
Attached to Virtual Dreams: the Mediating Role of Maladaptive Daydreaming in the Relationship between Attachment Styles and Problematic Social Media Use
No full textMaladaptive daydreaming describes excessive fantasy activity that interferes with an individual's life. Surprisingly, the precursors of maladaptive daydreaming and its role in excessive involvement in virtual worlds have been scarcely investigated. In the current study, we examined the relationships among attachment styles, maladaptive daydreaming, and problematic social media use (PSMU) in a sample of community-dwelling adults. Eight hundred seventy-seven participants between 18 and 68 years old were recruited via an online survey and asked to fill out self-reported measures on attachment styles, maladaptive daydreaming, and PSMU. Mediation analyses showed that maladaptive daydreaming is a significant mediator in the relationships between preoccupied and fearful attachment styles and PSMU, suggesting that maladaptive daydreaming partly explains the established link between insecure attachment styles and excessive use of social media. Individuals with PSMU fostered by maladaptive daydreaming may benefit from clinical interventions that promote the use of adaptive regulatory strategies to develop feelings of security and self-confidence that may serve to reduce the excessive involvement in social media
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