ORCID Profile
0000-0003-4036-889X
Current Organisations
University of Southampton
,
University of Pittsburgh
,
Carnegie Mellon University
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In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Family and Household Studies | Psychology | Finance | Social and Community Psychology
Expanding Knowledge in Psychology and Cognitive Sciences | Work and Family Responsibilities | Savings and Investments |
Publisher: Informa UK Limited
Date: 25-02-2014
Publisher: Psychology Press
Date: 04-05-2012
Publisher: Psychology Press
Date: 15-04-2013
Publisher: Oxford University Press (OUP)
Date: 04-08-2004
DOI: 10.1093/BIOINFORMATICS/BTH924
Abstract: Motivation: Sequencing errors may bias the gene expression measurements made by Serial Analysis of Gene Expression (SAGE). They may introduce non-existent tags at low abundance and decrease the real abundance of other tags. These effects are increased in the longer tags generated in LongSAGE libraries. Current sequencing technology generates quite accurate estimates of sequencing error rates. Here we make use of the sequence neighborhood of SAGE tags and error estimates from the base-calling software to correct for such errors. Results: We introduce a statistical model for the propagation of sequencing errors in SAGE and suggest an Expectation-Maximization (EM) algorithm to correct for them given observed sequences in a library and base-calling error estimates. We tested our method using simulated and experimental SAGE libraries. When comparing SAGE libraries, we found that sequencing errors can introduce considerable bias. High abundance tags may be falsely called as significantly differentially expressed, especially when comparing libraries with different levels of sequencing errors and/or of different size. Truly, differentially expressed tags have decreased significance as ‘true’-tag counts are generally underestimated. This may alter if tags near the threshold of differential expression are called significant. Moreover, the number of different transcripts present in a library is overestimated as false tags are introduced at low abundance. Our correction method adjusts the tag counts to be closer to the true counts and is able to partly correct for biases introduced by sequencing errors. Availability: An implementation using R is distributed as an R package. An online version is available at tagcalling.mbgproject.org
Publisher: Psychology Press
Date: 13-05-2013
Publisher: MDPI AG
Date: 09-11-2021
Abstract: Pursuing vaccinations against COVID-19 brings hope to limit the spread of SARS-CoV-2 and remains the most rational decision under pandemic conditions. However, it does not come without challenges, including temporary shortages in vaccine doses, significant vaccine inequity, and questions regarding the durability of vaccine-induced immunity that remain unanswered. Moreover, SARS-CoV-2 has undergone evolution with the emergence of its novel variants, characterized by enhanced transmissibility and ability to at least partially evade neutralizing antibodies. At the same time, serum antibody levels start to wane within a few months after vaccination, ultimately increasing the risk of breakthrough infections. This article discusses whether the administration of booster doses of COVID-19 vaccines is urgently needed to control the pandemic. We conclude that, at present, optimizing the immunity level of wealthy populations cannot come at the expense of low-income regions that suffer from vaccine unavailability. Although the efficiency of vaccination in protecting from infection may decrease over time, current data show that efficacy against severe disease, hospitalization, and death remains at a high level. If vaccine coverage continues at extremely low levels in various regions, including African countries, SARS-CoV-2 may sooner or later evolve into variants better adapted to evade natural and vaccine-induced immunity, ultimately bringing a global threat that, of course, includes wealthy populations. We offer key recommendations to increase vaccination rates in low-income countries. The pandemic is, by definition, a major epidemiological event and requires looking beyond one’s immediate self-interest otherwise, efforts to contain it will be futile.
Publisher: Psychology Press
Date: 25-02-2011
Publisher: Routledge
Date: 29-01-2018
Publisher: Informa UK Limited
Date: 28-09-2023
Publisher: Elsevier BV
Date: 12-2022
Publisher: SAGE Publications
Date: 10-09-2018
Abstract: Recent findings challenge the widely held motto of “never give up” in goal striving. There are situations in which it is of strategic interest to abandon an important goal and allocate resources to an alternative goal. The ability to realize whether a goal is attainable or not (and therefore the ability to make the “right choice” between goal persistence and goal disengagement or reengagement) is influenced by at least two key motivational factors: motivation for goal striving and a self-regulatory technique called mental contrasting with implementation intentions. The interplay between these two factors is as yet unexplored but holds promise for several conceptual and practical advancements in understanding the pursuit of challenging life goals. To this end, we propose a tripartite model of goal striving that integrates goal motivation and goal regulation.
Publisher: Wiley
Date: 14-08-2023
DOI: 10.1111/JOPY.12876
Abstract: What are the motivational underpinnings of solitude? We know from self‐report studies that increases in solitude are associated with drops in approach motivation and rises in avoidance motivation, but only when solitude is experienced as non‐self‐determined (i.e., non‐autonomous). However, the extent to which in idual differences in solitude relate to neurophysiological markers of approach–avoidance motivation derived from resting‐state electroencephalogram (EEG) is unknown. These markers are Frontal Alpha Asymmetry, beta suppression, and midline Posterior versus Frontal EEG Theta Activity. We assessed the relation among in idual differences in the reasons for solitude (i.e., preference for solitude, motivation for solitude), approach–avoidance motivation, and resting‐state EEG markers of approach–avoidance motivation ( N = 115). General preference for solitude was negatively related to approach motivation, observed in both self‐reported measures and EEG markers of approach motivation. Self‐determined solitude was positively related to both self‐reported approach motivation and avoidance motivation in the social domain (i.e., friendship). Non‐self‐determined solitude was negatively associated with self‐reported avoidance motivation. This research was a preliminary attempt to address the neurophysiological underpinnings of solitude in the context of motivation.
Publisher: Cambridge University Press (CUP)
Date: 2022
DOI: 10.1017/S0140525X22000632
Abstract: Self-protection can have psychological and behavioral implications. We contrast them with the implications of a self-enhancement strategy. Both self-enhancement and self-protection have costs and benefits as survival strategies, and we identify some of the emotional, cognitive, and behavioral tradeoffs associated with the differential preferences for each strategy. New analyses on a large existing data set confirm the target article's hypothesis that women are more attuned than men to potential negative consequences of innovations.
Publisher: Center for Open Science
Date: 30-03-2023
Abstract: The self-concordance model (SCM) examines the entire sequence from goal inception to attainment and presents a framework for how goal-regulatory strategies and outcomes vary based on the quality of motivation for goal striving. The first aim of this systematic review and meta-analysis was to synthesize a rich literature on the topic spanning over 20 years and to present a cohesive picture of the associations among the SCM constructs (Model 1). The second goal was to test alternative formulations of the model in which we (a) decomposed the self-concordance index into autonomous and controlled goal motives (b) included situational antecedents and psychological need frustration (Model 2) and (c) modeled psychological need satisfaction as a predictor of goal motives (Model 3). Guided by the PRISMA criteria, we searched six electronic databases and employed multilevel meta-analytic structural equation modeling to analyze data from 75 studies, yielding a total of 1,032 effect sizes (N = 10,501 for Model 1 N = 38,608 for Models 2 and 3). For Model 1, we obtained associations of at least medium effect size (rs & .20) among the model constructs. In Models 2 and 3, we found theoretically expected relations of at least medium effect size among all model constructs. The core assertion of the SCM, that pursuing self-concordant goals is associated with increased goal effort and attainment, psychological need satisfaction, and well-being, was supported. Furthermore, the alternative models added value by showing that the original SCM model can be broadened to integrate additional factors.
Publisher: Human Kinetics
Date: 12-2016
Abstract: Research on coaching (Bartholomew, Ntoumanis, & Thøgersen-Ntoumani, 2009) has shown that coaches can display controlling behaviors that have detrimental effects on athletes’ basic psychological needs and quality of sport experiences. The current study extends this literature by considering coach narcissism as a potential antecedent of coaches’ controlling behaviors. Further, the study tests a model linking coaches’ ( n = 59) own reports of narcissistic tendencies with athletes’ ( n = 493) perceptions of coach controlling behaviors, experiences of need frustration, and attitudes toward doping. Multilevel path analysis revealed that coach narcissism was directly and positively associated with athletes’ perceptions of controlling behaviors and was indirectly and positively associated with athletes’ reports of needs frustration. In addition, athletes’ perceptions of coach behaviors were positively associated—directly and indirectly—with attitudes toward doping. The findings advance understanding of controlling coach behaviors, their potential antecedents, and their associations with athletes’ attitudes toward doping.
Publisher: American Psychological Association (APA)
Date: 06-2023
DOI: 10.1037/MOT0000290
Publisher: Informa UK Limited
Date: 29-11-2018
Publisher: Wiley
Date: 21-12-2015
DOI: 10.1111/SMS.12635
Publisher: Elsevier BV
Date: 05-2023
Publisher: Informa UK Limited
Date: 13-11-2019
Publisher: Wiley
Date: 07-08-2013
DOI: 10.1111/JOPY.12047
Publisher: Center for Open Science
Date: 17-11-2022
Abstract: Parents must rapidly adapt goals from various aspects of their lives to accommodate the demands of the early stages of parenthood. The management and attainment of goals is more likely, if in iduals hold autonomous motives (goals align with internally held self-concepts) than controlled motives (goals driven by demands ressures). Metacognitive strategies, such as Mental Contrasting with Implementation Intentions (MCII), can also facilitate goal striving. Using experience s ling over one month, we investigated how motives and spontaneously occurring cognitive features of MCII (i.e., mental imagery, reflection on obstacles, implementation intention planning) predict coping, goal adjustment, goal progress, facilitation, and interference between parenting goals and competing life goals in early-stage parents (N = 103). Autonomous motives and MCII-like features were positively associated with effort coping, which in turn was related to goal progress and facilitation between- and within-in iduals. Goal adjustment was positively associated with facilitation at the between-person level when accompanied by effort coping. Furthermore, MCII-like features were positively related to increased goal adjustment in in iduals who had high controlled motivation for their competing life goal. The study indicates that effort and adjustment are effective coping mechanisms for attaining and managing multiple goals. Goal motives and MCII-like features are associated with the use of these mechanisms. The findings suggest that parents will benefit from selecting autonomously motivated goals and using MCII-like features to manage parenting and other competing life goals.
Publisher: SAGE Publications
Date: 04-06-2013
Abstract: Sexual desire may change according to two principles: the satisfaction principle (high sexual opportunity/frequency decreases sexual desire) and the adaptation principle (high sexual opportunity/frequency increases sexual desire). We explore the workings of these opposing principles separately for both genders across the adult life span. Two tests within a large ( N = 181,546) and cross-cultural (11 countries) data set revealed that the satisfaction principle accounts for sexual desire in men throughout the entire life and it accounts for sexual desire in women until their mid-30s. From that point onward, however, the pattern of female sexual desire becomes increasingly consistent with the adaptation principle. What sets older women apart from younger women and men of all ages? We discuss several mechanisms, with a focus on the satisfaction principle’s evolutionary value in life phases of high reproductive capacity and the adaptation principle’s evolutionary value in life phases of low reproductive capacity.
Publisher: Psychology Press
Date: 06-12-2012
Publisher: American Psychological Association (APA)
Date: 09-2020
DOI: 10.1037/PSPP0000260
Abstract: According to social identity theory, low self-esteem motivates group members to derogate out-groups, thus achieving positive in-group distinctiveness and boosting self-esteem. According to the Frankfurt School and status politics theorists, low self-esteem motivates collective narcissism (i.e., resentment for insufficient external recognition of the in-group's importance), which predicts out-group derogation. Empirical support for these propositions has been weak. We revisit them addressing whether (a) low self-esteem predicts out-group derogation via collective narcissism and (b) this indirect relationship is only observed after partialing out the positive overlap between collective narcissism and in-group satisfaction (i.e., belief that the in-group is of high value and a reason to be proud). Results based on cross-sectional (Study 1, N = 427) and longitudinal (Study 2, N = 853) designs indicated that self-esteem is uniquely, negatively linked to collective narcissism and uniquely, positively linked to in-group satisfaction. Results based on cross-sectional (Study 3, N = 506 Study 4, N = 1,059 Study 5, N = 471), longitudinal (Study 6, N = 410), and experimental (Study 7, N = 253) designs corroborated these inferences. Further, they revealed that the positive overlap between collective narcissism and in-group satisfaction obscures the link between self-esteem and out-group derogation. (PsycInfo Database Record (c) 2020 APA, all rights reserved).
Publisher: Wiley
Date: 12-08-2022
DOI: 10.1111/JASP.12915
Abstract: In three experiments, we examine the role of motives underlying goal pursuit and the metacognitive strategy of mental contrasting with implementation intentions (MCII) to predict the strategic use of self‐regulation responses (persistence, disengagement, and reengagement) when faced with attainable, unattainable, or multiple goals. We trained half of the participants to use MCII and treated the rest as control. Experiment 1 ( N = 261) underscored the role of autonomous motivation in nurturing adaptive cognitive appraisals and coping mechanisms, which facilitated persistence and progress with a difficult but attainable goal. In contrast, controlled motives undermined striving by predicting threat appraisals and giving up coping. MCII training ameliorated the negative impact of controlled motivation on goal striving by reducing threat appraisals. In Experiment 2 ( N = 391), we manipulated the task to make the initial goal unattainable. Strategic goal striving (disengagement from the unattainable goal followed by reengagement with an alternative goal) was facilitated by MCII and autonomous goal motives, and culminated in increases in positive affect. In Experiment 3 ( N = 432), we extended these findings to a multiple‐goal setting. The research further develops the literatures on self‐regulation and self‐determination, while having implications for life domains where in iduals pursue multiple and/or difficult goals.
Publisher: Informa UK Limited
Date: 02-2010
DOI: 10.1080/08870440802372431
Abstract: This article reports two studies assessing the influence of self-efficacy, outcome expectancies and aversive feedback on different aspects of adherence. Study 1 employed a computer simulation of physiotherapy to test experimentally the effects of aversive feedback (i.e., loud noise) experienced during simulated therapy on adherence behaviour in a student population. Study 2 examined whether similar effects of aversive feedback (i.e., pain) experienced during physiotherapy in a clinical setting would be observed in a longitudinal questionnaire study of predictors of adherence. In both studies, self-efficacy and outcome expectancies were assessed at baseline and after experience of the task (performing simulated or actual physiotherapy). Study 1 found that self-efficacy and outcome expectancies predicted persistence with simulated physiotherapy (i.e., completing the experimental session), whereas aversive feedback influenced adherence during sessions (i.e., correct response rate). Study 2 found that self-efficacy and outcome expectancies predicted persistence with actual physiotherapy (i.e., completing the prescribed number of sessions). Aversive feedback and outcome expectancies influenced adherence during sessions. We conclude that different factors predict different aspects of adherence behaviour. It is therefore important to measure both persistence over time and adherence during sessions, and to investigate the predictors of each dimension of adherence.
Publisher: Wiley
Date: 17-07-2018
DOI: 10.1111/JOPY.12402
Abstract: This theoretical article discusses the relevance of self-determination theory (SDT) for narcissism, a classic topic in self-theory. The trait of narcissism reflects a self-aggrandizing, dominant, and manipulative interpersonal orientation that feeds on exaggerated perceptions of agency, but not communion. The article embeds narcissism in the five mini-theories of SDT (organismic integration, causality orientations, basic needs, cognitive evaluation, and goal contents) and considers research directions that can explore synergies between key constructs from SDT and narcissism. SDT can serve as a foundation for a deeper understanding of narcissism. From the other end, narcissism can enrich SDT by explaining variations in motivational processes.
Location: United Kingdom of Great Britain and Northern Ireland
Start Date: 05-2020
End Date: 12-2023
Amount: $365,068.00
Funder: Australian Research Council
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