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191.
Andrea Sgoifo Donatella Stilli Stefano Parmigiani Beatrice Aimi Ezio Musso 《Aggressive behavior》1995,21(1):79-89
Maternal aggression of lactating rats was used to induce acute social stress in a resident-intruder paradigm. Behavioral and electrocardiographic responses of male intruders were simultaneously recorded. Cardiac electrical activity was measured by means of a telemetry system which ensured preservation of intruder's behavioral repertoire. Behavioral response to maternal attack was evaluated in terms of percent time spent in passive/submissive (p/s) and active/non-submissive (a/ns) patterns. This allowed us to classify the intruders as submissive, non-submissive, and intermediates. During the test, a significant decrease of average R-R interval (R-R) compared to baseline conditions and the occurrence of arrythmias of different nature were found. Ventricular arrhythmias, including premature ventricular beats and ventricular tachycardias, were present in all the intruders while R-R fluctuations and II degree atrioventricular (A-V) blocks only appeared in submissive and intermediate rats. Most ventricular arrhythmias occurred within the upper range of heart rate and were preceded by periods of low R-R variability. These electrocardiographic events were temporally associated with a/ns behavioral patterns and were related to an increased prevalence of sympathetic activity. On the other hand, R-R fluctuations and II degree A-V blocks preceded by high R-R variability were synchronized with p/s behavior and were ascribed to a predominant inhibitory effect of vagal activation which becomes more pronounced as the level of sympathetic activity increases. © 1995 Wiley-Liss, Inc. 相似文献
192.
Different Ways of Being Authoritarian: The Distinct Effects of Authoritarian Dimensions on Values and Prejudice 下载免费PDF全文
Stefano Passini 《Political psychology》2017,38(1):73-86
The traditional and still dominant approach to authoritarianism measures it as a unidimensional construct. However, in the past few years some studies have assessed the three hypothesized authoritarianism components (i.e., authoritarian submission, authoritarian aggression, and conventionalism) separately. The aims of this study are to verify that the three‐correlated‐factor structure fits the data better than the one‐factor model and to analyze the distinct effects of the three dimensions of authoritarianism on values and prejudice. A total of 169 Italian citizens responded to a questionnaire. As hypothesized, a structural equation model shows that the dimension of authoritarian submission is mainly related to the openness to change vs. conservation values opposition; the dimension of authoritarian aggression is more characterized on the self‐transcendence vs. self‐enhancement values opposition; conventionalism is mainly linked to traditional values. As concerns prejudice, this variable is predicted just by authoritarian aggression. Theoretical implications as concerns the conceptualization of authoritarianism are discussed. 相似文献
193.
Construct validity of the Free and Cued Selective Reminding Test in older adults with memory complaints 下载免费PDF全文
194.
Stefano Livi Valeria De Cristofaro Annalisa Theodorou Marika Rullo Valerio Piccioli Maura Pozzi 《Journal of community & applied social psychology》2020,30(3):249-261
Retention of volunteers is a main issue for no‐profit organizations. In the present study, using a cross‐sectional design, determinants of volunteers’ intentions to continue their service were investigated in a sample of 116 volunteers at different Italian organizations (Mage = 42.32, SDage = 15.91). Guided by the conceptual model of the volunteer process, we hypothesized that organizational socialization should mediate the link between prosocial personality and intention to continue volunteering. Results confirmed our prediction. Findings provide suggestions for organizations concerned about volunteers’ dropout that focus on ameliorating the socialization process of less prosocial volunteers in order to support their intention to remain in the organization. 相似文献
195.
Brini Stefano Sohrabi Hamid R. Hebert Jeffrey J. Forrest Mitchell R. L. Laine Matti Hämäläinen Heikki Karrasch Mira Peiffer Jeremiah J. Martins Ralph N. Fairchild Timothy J. 《Neuropsychology review》2020,30(1):25-27
Neuropsychology Review - The original version of this article unfortunately contained the following mistakes. 相似文献
196.
Simone Amendola Valentina Spensieri Giuseppe Stefano Biuso Rita Cerutti 《Scandinavian journal of psychology》2020,61(6):809-818
In the last two decades, scientific research has explored the problematic use of internet, videogames and mobile phones. However, there is still little consistent knowledge regarding the co-occurrence of problematic technology use and the role of maladaptive personality characteristics in adolescence. The present study aimed to investigate adolescents' styles of technology use with a cluster analysis approach focusing on personality functioning. The sample comprised 408 Italian adolescents (46.3% males) aged 11 to 18 years (M age = 13.80; SD = 2.08). Data were collected using the Internet Addiction Test, the Videogame Dependency Scale, the Test of Mobile-Phone Dependence Brief Form and the Personality Inventory for DSM5 Brief Form. Results provided a four-cluster solution based on the co-occurrence of problematic technology use. The four clusters were labeled as follows: cluster 1: “Above average internet and mobile-phone use”; cluster 2: “Below average technology use”; cluster 3: “Above average videogame use”; and cluster 4: “Problematic technology use.” Analyses on demographic variables (e.g., gender and age) demonstrated significant differences between the four groups. Adolescents with high levels of problematic technology use reported greater overall personality dysfunction than the other three groups. This finding supported our hypothesis on maladaptive personality functioning in adolescents at risk for addiction. Finally, the Antagonism domain played a specific role in differentiating the severity of adolescents' involvement in technology use. Further studies are needed to confirm our findings and to plan preventive interventions as well as therapeutic treatments. 相似文献
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Maternal aggression was examined in wild female mice (Mus musculus domesticus) derived from animals trapped in Alberta, Canada. Lactating females were tested for their behavior toward intruder males during the time of postpartum estrus while housed in a two-cage apparatus containing a defensible nest area. Prior to being used as intruders, sexually naive males were screened for their behavior toward a newborn pup (83% exhibited infanticide). Only infanticidal males were then housed in pairs and allowed to establish a dominance hierarchy. Dominance status was further verified by a urine marking test. The dominant and subordinate infanticidal males were then placed into a lactating female's cage and observed for 1 hr. The test was terminated immediately when a male began to attack the pups. Lactating females attacked the males in both groups, but subordinate males received more intense attacks than dominant males. Dominant males elicited significantly more fear/defense behavior than subordinate intruders. All of the dominant males and only one submissive male attacked the pups. Females were thus successful in blocking infanticide only by infanticidal subordinate males. Since females do not persist in attacking males with high fighting ability, one function of maternal aggression could be to assess the fighting, and resource holding, potential of a future mate. © 1994 Wiley-Liss, Inc. 相似文献
200.