377 research outputs found
Somatic, but not cognitive-affective, symptoms are associated with reduced heart rate variability in individuals with dysphoria
Background: Somatic, but not cognitive-affective, symptoms of depression have been associated with reduced heart rate variability (HRV), and with poor prognosis in cardiovascular patients. However, factors concomitant with cardiovascular diseases may confound the relationship between somatic symptoms of depression and reduced HRV. Therefore, this study examined whether reduced HRV was differentially associated with cognitive-affective and somatic symptoms of depression in medically healthy individuals with and without dysphoria. Methods: Self-reported cognitive-affective and somatic symptoms as measured with the Beck Depression Inventory-II (BDI-II) questionnaire and time and frequency domain parameters of HRV were collected in 62 medically healthy individuals, of whom 25 with and 37 without dysphoria. Results: Somatic, but not cognitive-affective, symptoms of depression were inversely associated with standard deviation of NN intervals (SDNN) (beta = -0.476, p .24). Conclusions: By showing that the relationship between somatic depressive symptoms and reduced HRV extends to medically healthy individuals with dysphoria, the present findings suggest that this association is independent of factors concomitant with cardiovascular diseases. The present study also suggests that individuals with somatic rather than cognitive-affective subsets of depressive symptoms may be at greater risk for developing cardiovascular diseases
Single-Session Attention Bias Modification Training in Victims of Work-Related Accidents
Individuals who experienced traumatic work-related accidents frequently show cognitive deficits and biased processing of trauma-relevant information, which, in turn, could increase the risk of further accidents. The attention bias modification training (ABMT) is designed to reduce hypervigilance toward and enhance attentional disengagement from threat stimuli. The aim of the present study was to assess whether it is possible to implicitly reduce the attentional bias toward trauma-related stimuli through a single session of ABMT in individuals who experienced a traumatic occupational accident. Nineteen individuals who had experienced a traumatic work-related accident and 11 workers who never experienced a work accident (control group) underwent a preliminary assessment of cognitive performance (executive functions and sustained attention) and an evaluation of the attentional bias toward accident-related pictures by means of a dot-probe task. The results showed that injured workers performed more poorly than controls in tasks of executive functions and concentration abilities. Also, injured workers showed an attentional bias toward trauma reminders (i.e., faster reaction times to probes replacing trauma-related pictures). Injured workers were then randomly allocated to a single-session of ABMT (N = 10) or to an Attention Control Condition (ACC; N = 9). After the training, the dot-probe task was administered again to assess changes in the attentional bias toward trauma-relevant pictures. Injured workers who underwent the ABMT, but not those who underwent the ACC, showed a significant reduction of the attentional bias from pre- to post-training. Overall, these results support previous findings reporting an association between traumatic occupational accidents and cognitive dysfunctions. More importantly, these preliminary findings add to a growing body of evidence suggesting the effectiveness of a short ABMT in reducing the attentional bias after a traumatic workplace accident
Segno, disegno, architettura
Lo studio propone l’indagine e la lettura di un ambito del “Rione San Giuseppe - Carità ” di Napoli, in particolar modo riferito all’intervento di Risanamento e ai progetti realizzati con il piano regolatore della città avveratisi negli anni trenta del secolo XX°.
Il linguaggio architettonico è quello proprio del periodo fascista e si inserisce nel programma edilizio promosso dal Regime che trasformerà significativamente il “Rione”, incluso nel quartiere San Giuseppe e in pieno centro storico. Quella realizzata è un’architettura propagandistica che trova nell’immagine di edifici monumentali, dal grande carattere scenografico, la risposta al volere del Governo Centrale.
Lo studio parte da una lettura degli elaborati grafici redatti nell’ambito dei vari concorsi promossi per i diversi edifici che andranno a delineare e disegnare la Piazza Matteotti, già Piazza della Regia Posta, per giungere alla lettura dei luoghi compiuta attraverso il rilievo architettonico.
Cinque gli edifici rilevati e dei quali si è condotta un’analisi dei caratteri costitutivi e compositivi.
Autorevoli e illustri architetti, del panorama nazionale italiano, furono impegnati e coinvolti nella progettazione dei Palazzi Istituzionali previsti. Artefici dell’immagine dei luoghi furono gli architetti Giuseppe Vaccaro e Gino Franzi, Ferdinando Chiaromonte, Marcello Canino, Camillo Guerra e Alessandro Carnelli.The study proposes the survey and a reading carried out in relation to an area of the "Rione Carità" in Naples, in particular referring to the recovery work and to the projects carried out with the development plan of Naples which took place in the 1930s°. The architectural language is characteristic of the fascist period and is part of the building program promoted by the regime that will significantly transform the "Rione", included in the San Giuseppe quarter and in the historical center. The one realized is a propaganda architecture that finds in the image of monumental buildings, with a great scenographic character, the answer to the will of the central government. The study starts from a reading and an analysis of the graphic works realized in the context of the various competitions promoted for the different buildings that will delineate and design the Piazza Matteotti, formerly Piazza della Regia Posta, to arrive at the reading of the places through architectural survey.Facultad de Arquitectura y Urbanism
Biofeedback in the prophylactic treatment of medication overuse headache: a pilot randomized controlled trial
Abstract Background: Medication overuse headache (MOH) is a major clinical concern and a common health risk. Recent literature stressed the need to manage chronic headache by using integrated biobehavioral approaches. Few studies evaluated how biofeedback can be useful in MOH. The aim of the study is to evaluate in a randomized, controlled, single-blind trial the effects of biofeedback associated with traditional pharmacological therapy in the prophylactic treatment of MOH. Method: Twenty-seven subjects were randomized to frontal electromyographic (EMG) biofeedback associated with prophylactic pharmacological therapy (Bfb Group) or to pharmacological treatment alone (Control Group). The primary outcome was to evaluate the number of patients that return episodic after treatment. Secondly we evaluate the effects of frontal EMG BFB on frequency of headache and analgesic intake. Changes in coping strategies and in EMG frontalis tension were also evaluated. ANOVA was performed on all the variables of interest. Results: Our results indicate that at the end of treatment the number of patients that returned episodic in the Bfb group was significantly higher than in the Control group. Patients in the Bfb group differed from the Control group in headache frequency, amount of drug intake and active coping with pain. These outcomes were confirmed also after 4 months of follow-up. No significant effects were observed in EMG recordings. Conclusions: Biofeedback added to traditional pharmacological therapy in the treatment of MOH is a promising approach for reducing headache frequency and analgesic intake. Modification of coping cognitions in the Bfb group, as an adjunct mechanism of self-regulation, needs more evaluations to understand the role of biofeedback in changing maladaptive psychophysiological responses
Posttraumatic and Depressive Symptoms in Victims of Occupational Accidents
The present descriptive study was aimed at evaluating posttraumatic and depressive symptoms and their cooccurrence, in a sample of victims of workplace accidents. Also, posttraumatic negative cognitions were assessed. Eighty-five injured workers were evaluated, using the PTSD Symptom Scale, the Beck Depression Inventory II, and the posttraumatic Cognitions Inventory. 49.4% of injured workers reported both depressive and posttraumatic symptoms of clinical relevance. 20% only reported posttraumatic, but not depressive, symptoms, and 30.6% did not report either type of symptoms. The group with both posttraumatic and depressive symptoms displayed greater symptom severity and more negative cognitions about the self and about the world than the other two groups. The obtained findings indicate that workplace accidents can have a major impact upon the mental health of victims. Early interventions should be focused not only on the prevention or reduction of posttraumatic and depressive symptoms but also on restructuring specific maladaptive trauma-related cognitions
Reduced heart rate variability is associated with vulnerability to depression
Background: Heart rate variability (HRV) mirrors cardiac autonomic modulation, an index of well-being. Reduced HRV has been reported in depression, but few studies investigated HRV in individuals at-risk of or remitted from a full-blown depressive episode. The present study aimed at examining whether reduced HRV could be a potential indicator of vulnerability to depression. Methods: Self-reported psychological measures and three-minute resting-state ECG were collected in two at-risk populations [group with dysphoria (n = 27), group with past depression (n = 16)] and in a control group (n = 25). Time- and frequency-domain HRV parameters were computed. Analysis of covariance was conducted to detect between-groups differences for each measure. Results: Standard Deviation of Normal to Normal intervals (SDNN) and High Frequency (HF) power of HRV were found to be reduced both in individuals with dysphoria and in those with past depression as compared with controls. Whereas psychological measures did not significantly differ among individuals with past depression and controls, HRV was capable of discriminating between the two groups. Limitations: Past depression was assessed retrospectively with self-reported information. The inclusion of a group with depression would provide an overview about HRV during the illness course. Conclusions: The findings suggest that reduced HRV is likely to be implicated in the risk of developing full-blown depression, rather than being a mere correlate of current depressive state. The results suggest that HRV may improve clinicians\u2019 ability to early identify people at risk for depression who can benefit from targeted prevention by psychiatric and psychological interventions
Effetto immediato della rimozione di <i>Caulerpa racemosa</i> sullo zoobenthos dell'infralitorale superficiale roccioso di Porto Torres (Nord Sardegna)
Caulerpa racemosa (Forsskål) J. Agardh è una specie lessepsiana altamente invasiva e le conoscenze sull'effetto della sua diffusione sui popolamenti zoobentonici in Mediterraneo sono molto scarse. Lo scopo di questo studio è quello di valutare l'effetto immediato della rimozione di C. racemosa sui popolamenti zoobentonici dell'infralitorale superficiale roccioso. E' stato condotto un esperimento manipolativo in un sito prospiciente un'area urbanizzata del nord Sardegna (Porto Torres). Durante l'estate 2004 sono state scelte delle aree random di 20x20 cm, nelle quali C. racemosa è stata rimossa, e delle aree di controllo. Successivamente (ad un giorno e ad un mese di distanza dopo la prima rimozione), sono stati raccolti campioni attraverso l'uso di cilindri di plastica (diametro 40 mm) e di un raschietto metallico. Il materiale è stato fissato in formalina e gli animali raccolti sono stati identificati e contati. Dall'analisi multivariata risulta che non vi è differenza significativa (ANOSIM p=39,4% R=0,004) tra l'abbondanza dei taxa raccolti nelle aree di rimozione e le aree di controllo in entrambi i tempi di campionamento. I risultati ottenuti, del tutto preliminari, sottolineano la necessità di approfondire le conoscenze sul risultato delle interazioni di C. racemosa con gli altri taxa presenti nell'area su una scala temporale più lunga
Multidimensional components of (state) mathematics anxiety: Behavioral, cognitive, emotional, and psychophysiological consequences
The present study aimed to analyze the different components of state mathematics anxiety that students experienced while solving calculation problems by manipulating their stress levels. A computerized mathematical task was administered to 165 fifth-graders randomly assigned to three different groups: positive, negative, and control conditions, in which positive, negative, or no feedback during the task was given, respectively. Behavioral (task performance), emotional (negative feelings), cognitive (worrisome thoughts and perceived competence), and psychophysiological responses (skin conductance and vagal withdrawal) were analyzed. Behavioral responses did not differ in the positive and negative conditions, while the latter was associated with children's reportedly negative emotional states, worries, and perceived lack of competence. The stress induced in the negative condition led to an increase in skin conductance and cardiac vagal withdrawal in children. Our data suggest the importance of considering students' interpretation of mathematics-related experiences, which might affect their emotional, cognitive, and psychophysiological responses
Not All Competitions Come to Harm! Competitive Biofeedback to Increase Respiratory Sinus Arrhythmia in Managers
Despite the positive impact on achievement, competition has been associated with elevated psychophysiological activation, potentially leading to a greater risk of cardiovascular diseases. Competitive biofeedback (BF) can be used to highlight the effects of competition on the same physiological responses that are going to be controlled through BF. However, it is still unknown whether competition could enhance the effects of respiratory sinus arrhythmia (RSA)-BF training in improving cardiac vagal control. The present study explored whether competitive RSA-BF could be more effective than non-competitive RSA-BF in increasing RSA in executive managers, who are at higher cardiovascular risk of being commonly exposed to highly competitive conditions. Thirty managers leading outstanding private or public companies were randomly assigned to either a Competition (n = 14) or a Control (n = 16) RSA-BF training lasting five weekly sessions. Managers in the Competition group underwent the RSA-BF in couples and each participant was requested to produce a better performance (i.e., higher RSA) than the paired challenger. After the training, results showed that managers in the Competition group succeeded in increasing cardiac vagal control, as supported by the specific increase in RSA (p < 0.001), the standard deviation of R-R wave intervals (SDNN; p < 0.001), and root mean square of the successive differences between adjacent heartbeats (rMSSD; p < 0.001). A significant increase in the percentage of successive normal sinus beat to beat intervals more than 50 ms (pNN50; p = 0.023; partial eta squared = 0.17), low frequency (p < 0.001; partial eta squared = 0.44), and high frequency power (p = 0.005; partial eta squared = 0.25) emerged independently from the competitive condition. Intriguingly, managers who compete showed the same reduction in resting heart rate (HR; p = 0.003, partial eta squared = 0.28), systolic blood pressure (SBP; p = 0.013, partial eta squared = 0.20), respiration rate (p < 0.001; partial eta squared = 0.46), and skin conductance level (SCL; p = 0.001, partial eta squared = 0.32) as non-competitive participants. Also, the same reduction
in social anxiety (p = 0.005; partial eta squared = 0.25), state (p = 0.038, partial eta squared = 0.14) and trait anxiety (p = 0.001, partial eta squared = 0.31), and depressive symptoms (p = 0.023, partial eta squared = 0.17) emerged in the two groups. The present results showed that managers competing for increasing RSA showed a greater improvement in their parasympathetic modulation than non-competing managers. Most importantly, competition did not lead to the classic pattern of increased psychophysiological activation under competitive RSA-BF. Therefore, competition could facilitate the use of self-regulation strategies, especially in highly competitive individuals, to promote adaptive responses to psychological stress
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