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121.
The Effects of Modafinil on Convergent and Divergent Thinking of Creativity: A Randomized Controlled Trial
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Ahmed Dahir Mohamed 《创造性行为杂志》2016,50(4):252-267
Modafinil is a drug licensed for the treatment of narcolepsy and sleep apnea. Recently, modafinil has been reported to be used as a pharmacological cognitive enhancer by healthy individuals with no psychiatric disorders. This paper reports on a study that investigated the effects of modafinil on divergent and convergent thinking tasks of creativity. Sixty‐four healthy male (n = 31) and female (n = 33) volunteers participated in a randomized double‐blind placebo‐controlled parallel group design study. For the convergent thinking tasks, modafinil had no significant main effect on the Group Embedded Figures Task and the Remote Associates Task (RAT). However, a median split analysis showed that modafinil participants low in creativity personality trait had significantly higher RAT scores (Mean [M] = 6.85, SD = 3.39; 95% confidence interval [95% CI]: 5.53–8.2) than those high in creativity personality trait (M = 4.27, SD = 3.0; 95% CI: 2.4–6.0). For the divergent thinking tasks, relative to placebo (M = 1.195, SD = 0.28; 95% CI: 1.0–1.3), modafinil (M = 0.77, SD = 0.37; 95% CI: 0.63–0.92) significantly reduced the performance of flexibility scores and marginally reduced the elaboration scores as measured by the Abbreviated Torrance Test for Adults (ATTA). Overall, participants on modafinil (M = 6.3, SD = 2.6; 95% CI: 5.3–7.4) had significantly lower ATTA scores relative to participants on placebo (M = 9.5, SD = 2.3; 95% CI: 8.6–10.4). These results indicate that modafinil might reduce divergent thinking of creativity in healthy individuals. They suggest that, rather than being a more general cognitive enhancer, modafinil might have negative and subtle effects on creativity. However, the results are from a small‐scale trial, which tested a small number of participants. Therefore, the results need to be interpreted with caution. A replication with a large sample of participants is recommended. 相似文献
122.
Parameshwaran Ramakrishnan Andrew Baccari Uma Ramachandran Syed Faiz Ahmed Harold G. Koenig 《Journal of religion and health》2018,57(4):1330-1349
Religious–spiritual (R/S) education helps medical students cope with caregiving stress and gain skills in interpersonal empathy needed for clinical care. Such R/S education has been introduced into K-12 and college curricula in some developed nations and has been found to positively impact student’s mental health. Such a move has not yet been seen in the Indian education system. This paper aimed to examine perspectives of teachers and parents in India on appropriateness, benefits, and challenges of including R/S education into the school curriculum and also to gather their impressions on how a R/S curriculum might promote students’ health. A cross-sectional study of religiously stratified sample of teachers and parents was initiated in three preselected schools in India and the required sample size (N = 300) was reached through snowballing technique. A semi-structured questionnaire, with questions crafted from “Religion and Spirituality in Medicine, Physicians Perspective” (RSMPP) and “American Academy of Religion’s (AAR) Guidelines for Religious Literacy,” was used to determine participants’ perspectives. Findings revealed that teachers’ and parents’ “comfort in integrating R/S into school curriculum” was associated with their gender (OR 1.68), education status (OR 1.05), and intrinsic religiosity (OR 1.05). Intrinsic religiosity was significantly (p = 0.025) high among parents while “intrinsic spirituality” was high (p = 0.020) among teachers. How participants’ R/S characteristics influence their support of R/S education in school is discussed. In conclusion, participants believe R/S education will fosters students’ emotional health and interpersonal skills needed for social leadership. A curriculum that incorporates R/S education, which is based on AAR guidelines and clinically validated interpersonal spiritual care tools would be acceptable to both teachers and parents. 相似文献
123.
Religious beliefs and values impact Muslim patients' attitudes toward a variety of healthcare decisions, including organ donation. Muslim physician attitudes toward organ donation, however, are less well studied. Utilizing a national survey of physician members of the Islamic Medical Association of North America, relationships between religiosity, patterns of bioethics resource utilization, and sociodemographic characteristics with attitudes toward organ donation were assessed. Of 255 respondents, 251 answered the target question, “in your understanding, does Islamic bioethics and law permit organ donation?.” 177 respondents (70%) answered positively, 30 (12%) negatively, and 46 (18%) did not know. Despite the overwhelming majority of respondents believing organ donation to be permitted by Islamic bioethics and law, fewer than one-third (n = 72, 30%) are registered donors. Several sociodemographic features had a positive association with believing organ donation to be permitted: ethnic descent other than that of South Asian, having immigrated to the USA as an adult, and male sex. When using a logistic regression model controlling for these three variables as potential confounders, the best predictor of Muslim physicians believing organ donation to be permissible was utilization of an Imam as a bioethical resource (odds ratio 5.9, p = 0.02). Religiosity variables were not found to be associated with views on the Islamic permissibility of organ donation. While Muslim American physicians appear to believe there is religious support for organ donation, only a minority sign up to be donors. Greater study is needed to understand how physicians' attitudes regarding donation impact discussions between patients and physicians regarding the possibility of donating and of receiving a transplant. 相似文献
124.
Andrew J. Elliot Nawal Aldhobaiban Kou Murayama Ahmed Kobeisy Małgorzata A. Gocłowska Aber Khyat 《International journal of psychology》2018,53(1):16-22
In this research, we investigate impression management (IM) as a substantive personality variable by linking it to differentiated achievement motivation constructs, namely achievement motives (workmastery, competitiveness, fear of failure) and achievement goals (mastery‐approach, mastery‐avoidance, performance‐approach, performance‐avoidance). Study 1 revealed that IM was a positive predictor of workmastery and a negative predictor of competitiveness (with and without self‐deceptive enhancement (SDE) controlled). Studies 2a and 2b revealed that IM was a positive predictor of mastery‐approach goals and mastery‐avoidance goals (without and, in Study 2b, with SDE controlled). These findings highlight the value of conceptualising and utilising IM as a personality variable in its own right and shed light on the nature of the achievement motive and achievement goal constructs. 相似文献
125.
Abdel-Khalek AM 《Psychological reports》2007,101(1):25-26
In a sample of 450 (220 men, 230 women) Egyptian undergraduates (M age=20.6 yr., SD=1.9), scores on extraversion and neuroticism scales were not associated with sibship size and birth order. 相似文献
126.
Abdel-Khalek AM 《Psychological reports》2007,101(1):90-92
Recently a study by Lester of American college students found a different factor structure for the Kuwait University Anxiety Scale than studies with students from Arab countries. Thus, a large sample of college students (N=3064) was recruited from 10 Arab countries to examine the replicability of the factors previously extracted from the Kuwait University Anxiety Scale. Three factors, identified in the present sample, were compatible with those in the prior larger sample (N=9031). These were labeled Cognitive/Affective Anxiety, Subjective Anxiety or Nervousness, and Somatic Anxiety. The factorial pattern of the scale has been verified by both large samples. 相似文献
127.
Delayed-response tasks (DRTs) have been used to assess working memory (WM) processes in human and nonhuman animals. Experiments have shown that the basal ganglia (BG) and dorsolateral prefrontal cortex (DLPFC) subserve DRT performance. Here, we report the results of simulation studies of a systems-level model of DRT performance. The model was trained using the temporal difference (TD) algorithm and uses an actor-critic architecture. The matrisomes of the BG represent the actor and the striosomes represent the critic. Unlike existing models, we hypothesize that the BG subserve the selection of both motor- and cognitive-related information in these tasks. We also assume that the learning of both processes is based on reward presentation. A novel feature of the model is the incorporation of delay-active neurons in the matrisomes, in addition to DLPFC. Another novel feature of the model is the subdivision of the matrisomal neurons into segregated winner-take-all (WTA) networks consisting of delay- versus transiently-active units.Our simulation model proposes a new neural mechanism to account for the occurrence of perseverative responses in WM tasks in striatal-, as well as in prefrontal damaged subjects. Simulation results also show that the model both accounts for the phenomenon of time shifting of dopamine phasic signals and the effects of partial reinforcement and reward magnitude on WM performance at both behavioral and neural levels. Our simulation results also found that the TD algorithm can subserve learning in delayed-reversal tasks. 相似文献
128.
Social interactions are typical behavioral patterns serving to regulate life in a group. These interactions may develop into aggression, which causes stress in the defeated animal. We used Tilapia, a commercially important fish which is aggressive, to examine how this behavior affects them and whether it induces alterations in leucocytes. Compared to dominant fish, subordinate ones had elevated glucose levels and hemolytic blood sera. In addition, cells from blood and pronephros of subordinates, when compared to dominant fish, showed qualitative changes characterized by granulocytosis and lymphopenia. Furthermore, leucocytes revealed cytoplasmic and karyoplasmic vacuolation, indicating cellular disintegration. These morphological alterations were also accompanied by impaired leukocyte function and thus may increase susceptibility to diseases and neoplasia. 相似文献
129.
David J. Robertson Jennifer Black Bethany Chamberlain Ahmed M. Megreya Josh P. Davis 《Applied cognitive psychology》2020,34(1):205-216
The accurate identification of an unfamiliar individual from a face photo is a critical factor in several applied situations (e.g., border control). Despite this, matching faces to photographic ID is highly prone to error. In lieu of effective training measures, which could reduce face matching errors, the selection of “super-recognisers” (SRs) provides the most promising route to combat misidentification or fraud. However, to date, super-recognition has been defined and tested using almost exclusively “own-race” face memory and matching tests. Here, across three studies, we test Caucasian participants' performance on own- and other-race face identification tasks (GFMT, MFMT, CFMT+, EFMT, CFMT-Chinese). Our findings show that compared to controls, high-performing typical recognisers (Studies 1 and 2) and SRs (Study 3) show superior performance on both the own- and other-race tests. These findings suggest that recruiting SRs in ethnically diverse applied settings could be advantageous. 相似文献
130.