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Evaluating Mental Health Outcomes In Covid-19 Icu Survivors: A Scoping Review Of Measurement Tools, Kimberly T'Ng Yiting, Justin Kenardy, Andree Hartanto May 2024

Evaluating Mental Health Outcomes In Covid-19 Icu Survivors: A Scoping Review Of Measurement Tools, Kimberly T'Ng Yiting, Justin Kenardy, Andree Hartanto

Research Collection School of Social Sciences

Objective: The objective of this scoping review was to map the range of measurement tools used to study the prevalence of common mental health conditions in COVID-19 ICU survivors. Introduction: Increased rates of admission to and survivorship from intensive care units (ICUs) have been observed in recent years, particularly during the global pandemic. ICU patients are at a higher risk of developing depressive, anxiety, and PTSD symptoms. Due to the high burden of disease, an accurate understanding of long-term mental health challenges for this population is key. Unfortunately, there is significant variability in reported prevalence rates. Heterogeneity in measurement tools …


Efficacy Of Digital Mental Health Interventions For Ptsd Symptoms: A Systematic Review Of Meta-Analyses, Yue Qi Germaine Tng, Xun Ci Soh, Xun Ci Soh, Andree Hartanto, Andree Hartanto Apr 2024

Efficacy Of Digital Mental Health Interventions For Ptsd Symptoms: A Systematic Review Of Meta-Analyses, Yue Qi Germaine Tng, Xun Ci Soh, Xun Ci Soh, Andree Hartanto, Andree Hartanto

Research Collection School of Social Sciences

Background: The present systematic review aimed to synthesize the results of meta-analyses which examine the effects of digital mental health interventions (DMHIs) on post-traumatic stress disorder (PTSD) symptoms, and investigate whether intervention characteristics (i.e., technique, timeframe, and therapeutic guidance) and methodological characteristics including outcome measures and sample inclusion criteria (age, gender, socioeconomic status, country, comorbidity) moderate the efficacy of digital interventions. Methods: A systematic search of various sources (ECSCOhost PsycInfo, PubMed, Web of Science, Scopus, EBSCOhost ERIC, Google Scholar, ProQuest Dissertations & Theses) including five peer-reviewed journals was conducted to identify relevant meta-analyses up to December 2023, and 11 meta-analyses …


Profiles Of Activity Engagement And Depression Trajectories As Covid-19 Restrictions Were Relaxed, Jonathan L. Chia, Andree Hartanto, William Tov Feb 2024

Profiles Of Activity Engagement And Depression Trajectories As Covid-19 Restrictions Were Relaxed, Jonathan L. Chia, Andree Hartanto, William Tov

Research Collection School of Social Sciences

Given elevated depression rates since the onset of the pandemic and potential downstream implications, this research examined the association between activity engagement and depression among middle-aged and older adults postlockdown. This study aimed to (a) identify activity engagement profiles among middle-aged and older adults, (b) understand factors associated with profile memberships, and (c) compare depression trajectories across profiles as COVID-19 restrictions eased over 16 months in Singapore. This longitudinal study involved 6,568 middle-aged and older adults. Latent growth analysis was first conducted to obtain estimates of depression trajectories for each individual. Latent profile analysis was then conducted to identify different …


A Dual-Angle Exploration Towards Understanding Lapses In Covid-19 Social Responsibility, Sean T. H. Lee, Jerome J. X. Mah, Angela K. Y. Leung Feb 2024

A Dual-Angle Exploration Towards Understanding Lapses In Covid-19 Social Responsibility, Sean T. H. Lee, Jerome J. X. Mah, Angela K. Y. Leung

Research Collection School of Social Sciences

Breaking infection chains requires not just behaviours that allow individuals to stay healthy and uninfected (i.e. health protective behaviours) but also for those who are possibly infected to protect others from their harboured infection risk (i.e. socially responsible behaviours). However, socially responsible behaviours entail costs without clear, immediate benefits to the individual, such that public health-risking lapses occur from time to time. In this important yet understudied area, the current exploratory study sought to identify possible psychological factors that may affect people's likelihood of engaging in socially responsible behaviours. Assuming that self-perceived infection should provide an impetus to engage in …


The Psychological Science Accelerator's Covid-19 Rapid-Response Dataset, Erin M. Buchanan, Andree Hartanto Dec 2023

The Psychological Science Accelerator's Covid-19 Rapid-Response Dataset, Erin M. Buchanan, Andree Hartanto

Research Collection School of Social Sciences

In response to the COVID-19 pandemic, the Psychological Science Accelerator coordinated three large-scale psychological studies to examine the effects of loss-gain framing, cognitive reappraisals, and autonomy framing manipulations on behavioral intentions and affective measures. The data collected (April to October 2020) included specific measures for each experimental study, a general questionnaire examining health prevention behaviors and COVID-19 experience, geographical and cultural context characterization, and demographic information for each participant. Each participant started the study with the same general questions and then was randomized to complete either one longer experiment or two shorter experiments. Data were provided by 73,223 participants with …


Greater Traditionalism Predicts Covid-19 Precautionary Behaviors Across 27 Societies, Theodore Samore, D. M. T. Fessler, A. M. Sparks, C. Holbrook, L. Aaroe, Norman P. Li, Kai Lin Lynn Tan, Et Al Dec 2023

Greater Traditionalism Predicts Covid-19 Precautionary Behaviors Across 27 Societies, Theodore Samore, D. M. T. Fessler, A. M. Sparks, C. Holbrook, L. Aaroe, Norman P. Li, Kai Lin Lynn Tan, Et Al

Research Collection School of Social Sciences

People vary both in their embrace of their society’s traditions, and in their perception of hazards as salient and necessitating a response. Over evolutionary time, traditions have offered avenues for addressing hazards, plausibly resulting in linkages between orientations toward tradition and orientations toward danger. Emerging research documents connections between traditionalism and threat responsivity, including pathogen-avoidance motivations. Additionally, because hazard-mitigating behaviors can conflict with competing priorities, associations between traditionalism and pathogen avoidance may hinge on contextually contingent tradeoffs. The COVID-19 pandemic provides a real-world test of the posited relationship between traditionalism and hazard avoidance. Across 27 societies (N = 7844), we …


The Role Of Cosmopolitan Orientation In Covid-19-Related Attitudes: Perceived Threats And Opportunities, Vaccination Willingness, And Support For Collective Containment Efforts, Angela K. Y. Leung, Brandon Koh, Verity Yu Qing Lua, James H. Liu, Sarah Y. Choi, I-Ching Lee, Michelle Lee, Mei-Hua Lin, Darrin Hodgetts, Sylvia X. Chen Aug 2023

The Role Of Cosmopolitan Orientation In Covid-19-Related Attitudes: Perceived Threats And Opportunities, Vaccination Willingness, And Support For Collective Containment Efforts, Angela K. Y. Leung, Brandon Koh, Verity Yu Qing Lua, James H. Liu, Sarah Y. Choi, I-Ching Lee, Michelle Lee, Mei-Hua Lin, Darrin Hodgetts, Sylvia X. Chen

Research Collection School of Social Sciences

Cosmopolitan individuals identify themselves as "citizens of the world." In the present research, we tested the idea that endorsing a cosmopolitan orientation (CO) is adaptive in the COVID-19 crisis. Cosmopolitan individuals more readily transcend national parochialism, show greater concern for all humanity, and prioritize collective interests. In a two-wave multi-region investigation with six samples from China, Hong Kong, Taiwan, Malaysia, Singapore, and the U.S., we first established longitudinal and cross-cultural measurement invariance of the CO scale. Next, we found that people with a higher CO tended to perceive over time a greater threat posed by COVID-19, take more safety measures, …


Do Executive Functions Buffer Against Covid-19 Fear And Stress? A Latent Variable Approach, Tina Li Yi Ng, Nadyanna M. Majeed, Verity Yu Qing Lua, Andree Hartanto May 2023

Do Executive Functions Buffer Against Covid-19 Fear And Stress? A Latent Variable Approach, Tina Li Yi Ng, Nadyanna M. Majeed, Verity Yu Qing Lua, Andree Hartanto

Research Collection School of Social Sciences

Levels of COVID-19 stress have soared worldwide as a result of the pandemic. Given the pernicious psychological and physiological effects of stress, there is an urgent need for us to protect populations against the pandemic’s psychological impact. While there exists literature documenting the prevalence of COVID-19 stress among various populations, insufficient research has investigated psychological factors that might mitigate this worrying trend. To address this gap in the literature, the current study seeks to examine executive functions as a potential cognitive buffer against COVID-19 stress. To do so, the study adopted a latent variable approach to examine three latent factors …


Covid-19 Stress And Cognitive Failures In Daily Life: A Multilevel Examination Of Within- And Between-Persons Patterns, Nadyanna Binte Mohamed Majeed, K Tennakoon Appuhamillage Sandeeshwara Kasturiratna, Ming Yao Li, Jonathan L. Chia, Verity Y. Q. Lua, Andree Hartanto Jan 2023

Covid-19 Stress And Cognitive Failures In Daily Life: A Multilevel Examination Of Within- And Between-Persons Patterns, Nadyanna Binte Mohamed Majeed, K Tennakoon Appuhamillage Sandeeshwara Kasturiratna, Ming Yao Li, Jonathan L. Chia, Verity Y. Q. Lua, Andree Hartanto

Research Collection School of Social Sciences

The COVID-19 pandemic has claimed an extremely high number of lives worldwide, causing widespread panic and stress. The current research examined whether COVID-19 stress was associated with everyday cognitive failures, using data from a seven-day daily diary study of 253 young adults in Singapore. Multilevel modeling revealed that COVID-19 stress was significantly associated with cognitive failures even after adjusting for demographic factors, both at the within-person and between-persons levels. Specifically, individuals experienced more cognitive failures on days they experienced more COVID-19 stress (as compared to their own average levels of COVID-19 stress), and individuals who experienced more COVID-19 stress overall …


Developing A Lifestyle Intervention Program For Overweight Or Obese Preconception, Pregnant And Postpartum Women Using Qualitative Methods, Chee Wai Ku, Shu Hui Leow, Lay See Ong, Christina Erwin, Isabella Ong, Xiang Wen Ng, Jacinth Jia Xin Tan, Fabian Yap, Jerry K. Y. Chan, See Ling Loy Dec 2022

Developing A Lifestyle Intervention Program For Overweight Or Obese Preconception, Pregnant And Postpartum Women Using Qualitative Methods, Chee Wai Ku, Shu Hui Leow, Lay See Ong, Christina Erwin, Isabella Ong, Xiang Wen Ng, Jacinth Jia Xin Tan, Fabian Yap, Jerry K. Y. Chan, See Ling Loy

Research Collection School of Social Sciences

The time period before, during and after pregnancy represents a unique opportunity for interventions to cultivate sustained healthy lifestyle behaviors to improve the metabolic health of mothers and their offspring. However, the success of a lifestyle intervention is dependent on uptake and continued compliance. To identify enablers and barriers towards engagement with a lifestyle intervention, thematic analysis of 15 in-depth interviews with overweight or obese women in the preconception, pregnancy or postpartum periods was undertaken, using the integrated-Promoting Action on Research Implementation in Health Services framework as a guide to systematically chart factors influencing adoption of a novel lifestyle intervention. …


Individual Costs And Community Benefits: Collectivism And Individuals’ Compliance With Public Health Interventions, Suyi Leong, Kimin Eom, Keiko Ishii, Marion C. Aichberger, Karolina Fetz, Tim S. Müller, Heejung S. Kim, David K. Sherman Nov 2022

Individual Costs And Community Benefits: Collectivism And Individuals’ Compliance With Public Health Interventions, Suyi Leong, Kimin Eom, Keiko Ishii, Marion C. Aichberger, Karolina Fetz, Tim S. Müller, Heejung S. Kim, David K. Sherman

Research Collection School of Social Sciences

Differences in national responses to COVID-19 have been associated with the cultural value of collectivism. The present research builds on these findings by examining the relationship between collectivism at the individual level and adherence to public health recommendations to combat COVID-19 during the pre-vaccination stage of the pandemic, and examines different characteristics of collectivism (i.e., concern for community, trust in institutions, perceived social norms) as potential psychological mechanisms that could explain greater compliance. A study with a cross-section of American participants (N = 530) examined the relationship between collectivism and opting-in to digital contact tracing (DCT) and wearing face coverings …


Potential And Pitfalls Of Mobile Mental Health Apps In Traditional Treatment: An Umbrella Review, Jerica Koh, Germaine Y. Q. Tng, Andree Hartanto Aug 2022

Potential And Pitfalls Of Mobile Mental Health Apps In Traditional Treatment: An Umbrella Review, Jerica Koh, Germaine Y. Q. Tng, Andree Hartanto

Research Collection School of Social Sciences

While the rapid growth of mobile mental health applications has offered an avenue of support unbridled by physical distance, time, and cost, the digitalization of traditional interventions has also triggered doubts surrounding their effectiveness and safety. Given the need for a more comprehensive and up-to-date understanding of mobile mental health apps in traditional treatment, this umbrella review provides a holistic summary of their key potential and pitfalls. A total of 36 reviews published between 2014 and 2022—including systematic reviews, meta-analyses, scoping reviews, and literature reviews—were identified from the Cochrane library, Medline (via PubMed Central), and Scopus databases. The majority of …


A Global Experiment On Motivating Social Distancing During The Covid-19 Pandemic, Nicole Legate, Thuy-Vy Nguyen, Andree Hartanto May 2022

A Global Experiment On Motivating Social Distancing During The Covid-19 Pandemic, Nicole Legate, Thuy-Vy Nguyen, Andree Hartanto

Research Collection School of Social Sciences

Finding communication strategies that effectively motivate social distancing continues to be a global public health priority during the COVID-19 pandemic. This cross-country, preregistered experiment (n = 25,718 from 89 countries) tested hypotheses concerning generalizable positive and negative outcomes of social distancing messages that promoted personal agency and reflective choices (i.e., an autonomy-supportive message) or were restrictive and shaming (i.e., a controlling message) compared with no message at all. Results partially supported experimental hypotheses in that the controlling message increased controlled motivation (a poorly internalized form of motivation relying on shame, guilt, and fear of social consequences) relative to no message. …


When Intelligence Hurts And Ignorance Is Bliss: Global Pandemic As An Evolutionarily Novel Threat To Happiness, Satoshi Kanazawa, Norman P. Li, Jose C. Yong Feb 2022

When Intelligence Hurts And Ignorance Is Bliss: Global Pandemic As An Evolutionarily Novel Threat To Happiness, Satoshi Kanazawa, Norman P. Li, Jose C. Yong

Research Collection School of Social Sciences

Introduction: The savanna theory of happiness posits that it is not only the current consequences of a given situation that affect happiness but also its ancestral consequences, and that the effect of ancestral consequences on happiness is stronger among less intelligent individuals. But what about situations that did not exist in the ancestral environment and thus have no ancestral consequences? Global pandemic is one such situation that has no ancestral analog, and the theory predicts such evolutionarily novel threats to have a negative effect disproportionately on the life satisfaction of more intelligent individuals.Methods: We analyzed prospectively longitudinal data from population …


Politicians Polarize And Experts Depolarize Public Support For Covid-19 Management Policies Across Countries, A. Flores, J.C. Cole, S. Dickert, Kimin Eom, G.M. Jiga-Boy, T. Kogut, R. Loria, M. Mayorga, E.J. Pedersen, B. Pereira, E. Rubaltelli, D.K. Sherman, P. Slovic, D. Vastfjall, L. Van Boven Jan 2022

Politicians Polarize And Experts Depolarize Public Support For Covid-19 Management Policies Across Countries, A. Flores, J.C. Cole, S. Dickert, Kimin Eom, G.M. Jiga-Boy, T. Kogut, R. Loria, M. Mayorga, E.J. Pedersen, B. Pereira, E. Rubaltelli, D.K. Sherman, P. Slovic, D. Vastfjall, L. Van Boven

Research Collection School of Social Sciences

Political polarization impeded public support for policies to reduce the spread of COVID-19, much as polarization hinders responses to other contemporary challenges. Unlike previous theory and research that focused on the United States, the present research examined the effects of political elite cues and affective polarization on support for policies to manage the COVID-19 pandemic in seven countries (n = 12,955): Brazil, Israel, Italy, South Korea, Sweden, the United Kingdom, and the United States. Across countries, cues from political elites polarized public attitudes toward COVID-19 policies. Liberal and conservative respondents supported policies proposed by ingroup politicians and parties more than …


Development And Validation Of A Lifestyle Behavior Tool In Overweight And Obese Women Through Qualitative And Quantitative Approaches, Chee Wai Ku, Loo Rachel, Cheryl Lim, Jacinth Jia Xin Tan, Joey Ho, Wee Meng Han, Xiang Wen Ng, Jerry Chan, See Ling Loy Dec 2021

Development And Validation Of A Lifestyle Behavior Tool In Overweight And Obese Women Through Qualitative And Quantitative Approaches, Chee Wai Ku, Loo Rachel, Cheryl Lim, Jacinth Jia Xin Tan, Joey Ho, Wee Meng Han, Xiang Wen Ng, Jerry Chan, See Ling Loy

Research Collection School of Social Sciences

There is a paucity of effective intervention tools for overweight/obese women to assess, guide and monitor their eating behavior. This study aimed to develop a lifestyle intervention tool, assess its acceptability and usefulness, and verify its construct validity in overweight/obese women. The 6P tool (Portion, Proportion, Pleasure, Phase, Physicality, Psychology) was developed and 15 women with a body mass index (BMI) ≥ 25 kg/m2 were interviewed to assess its perceived acceptability and usefulness. Subsequently, the revised 6P tool was tested in 46 women with a BMI ≥ 25 kg/m2. The Three-Factor Eating Questionnaire (TFEQ), International Physical Activity Questionnaire-Short (IPAQ), and …


Cognitive Barriers To Covid-19 Vaccine Uptake Among Older Adults, Jonathan L. Chia, Andree Hartanto Oct 2021

Cognitive Barriers To Covid-19 Vaccine Uptake Among Older Adults, Jonathan L. Chia, Andree Hartanto

Research Collection School of Social Sciences

The COVID-19 pandemic has resulted in tremendous loss of life. As of late-July 2021, there have been more than 191 million confirmed cases and over 4.1 million deaths recorded (1). Although most nations have developed some competency in COVID-19 containment (2–4), there are new challenges. The continual spread of COVID-19 has resulted in new variants (5–7). These new variants are posited to have a significantly higher transmissibility (8–10), with higher fatality rates (11, 12).


A Multi-Country Test Of Brief Reappraisal Interventions On Emotions During The Covid-19 Pandemic, Ka Wang, Amit Goldenberg, Charles Dorison, Et Al., Nadyanna Mohamed Majeed, Andree Hartanto Aug 2021

A Multi-Country Test Of Brief Reappraisal Interventions On Emotions During The Covid-19 Pandemic, Ka Wang, Amit Goldenberg, Charles Dorison, Et Al., Nadyanna Mohamed Majeed, Andree Hartanto

Research Collection School of Social Sciences

The COVID-19 pandemic has increased negative emotions and decreased positive emotions globally. Left unchecked, these emotional changes might have a wide array of adverse impacts. To reduce negative emotions and increase positive emotions, we tested the effectiveness of reappraisal, an emotion-regulation strategy that modifies how one thinks about a situation. Participants from 87 countries and regions (n = 21,644) were randomly assigned to one of two brief reappraisal interventions (reconstrual or repurposing) or one of two control conditions (active or passive). Results revealed that both reappraisal interventions (vesus both control conditions) consistently reduced negative emotions and increased positive emotions across …


Psychology And The Threat Of Contagion: Feeling Vulnerable To A Disease Moderates The Link Between Xenophobic Thoughts And Support For Ingroup-Protective Actions, Heejung S. Kim, Kimin Eom, Roxie Chuang, David K. Sherman Aug 2021

Psychology And The Threat Of Contagion: Feeling Vulnerable To A Disease Moderates The Link Between Xenophobic Thoughts And Support For Ingroup-Protective Actions, Heejung S. Kim, Kimin Eom, Roxie Chuang, David K. Sherman

Research Collection School of Social Sciences

The widespread threat of contagious disease disrupts not only everyday life but also psychological experience. Building on findings regarding xenophobic responses to contagious diseases, this research investigates how perceived vulnerability to a disease moderates the psychological link between people’s xenophobic thoughts and support for ingroup-protective actions. Three datasets collected during the time of Ebola (N = 867) and COVID-19 (Ns = 992 and 926) measured perceived disease risk, group-serving biases (i.e., xenophobic thoughts), and support for restrictive travel policies (i.e., ingroup-protective actions). Using correlational and quasi-experimental analyses, results indicated that for people who perceive greater disease risk, the association between …


Religion, Social Connectedness, And Xenophobic Responses To Ebola, Roxie Chuang, Kimin Eom, Heejung S. Kim Jul 2021

Religion, Social Connectedness, And Xenophobic Responses To Ebola, Roxie Chuang, Kimin Eom, Heejung S. Kim

Research Collection School of Social Sciences

This study examined the role of religion in xenophobic responses to the threat of Ebola. Religious communities often offer members strong social ties and social support, which may help members cope with psychological and physical threat, including global threats like Ebola. Our analysis of a nationally representative sample in the U.S. (N = 1,000) found that overall, the more vulnerable to Ebola people felt, the more they exhibited xenophobic responses, but this relationship was moderated by importance of religion. Those who perceived religion as more important in their lives exhibited weaker xenophobic reactions than those who perceived religion as less …


The New Normal Of Social Psychology In The Face Of The Covid-19 Pandemic: Insights And Advice From Leaders In The Field, Kim Pong Tam, Angela K. Y. Leung, Sammyh Khan Mar 2021

The New Normal Of Social Psychology In The Face Of The Covid-19 Pandemic: Insights And Advice From Leaders In The Field, Kim Pong Tam, Angela K. Y. Leung, Sammyh Khan

Research Collection School of Social Sciences

Revisiting the history of social psychology, one noticeable trend is that the agenda of social psychologists is interwoven with events that happen in society and the world (Ross et al., 2010). For example, the Holocaust during World War II stimulated social psychologists’ interest in ethnocentrism, aggression, and obedience, just as increasing globalization became one of the impetuses for investigations into the role of culture in human behaviour, and hence the emergence of cultural and cross‐cultural psychology. Considering its immensity, we believe that the COVID‐19 pandemic will likely be a trigger for profound and consequential changes in social psychology (Khazaie & …


Seeking Control During Uncontrollable Times: Control Abilities And Religiosity Predict Stress During Covid-19, Shi Ann Shuna Khoo, Wei Xing Toh, Hwajin Yang Feb 2021

Seeking Control During Uncontrollable Times: Control Abilities And Religiosity Predict Stress During Covid-19, Shi Ann Shuna Khoo, Wei Xing Toh, Hwajin Yang

Research Collection School of Social Sciences

The COVID-19 pandemic has created an urgent need to understand the protective factors that can buffer individuals against psychological distress. We employed a latent-variable approach to examine how control-related factors such as religiosity, self-control, cognitive control, and health locus of control can act as resilience resources during stressful periods. We found that cognitive control emerged as a protective factor against COVID-19-related stress, whereas religiosity predicted a heightened level of stress. These results provide novel insights into control factors that can safeguard individuals' psychological well-being during crises such as a pandemic.


Dealing With Covid-19 And Emerging Stronger From It, David Chan Nov 2020

Dealing With Covid-19 And Emerging Stronger From It, David Chan

Research Collection School of Social Sciences

Whether it is reacting to news on COVID-19 cases, following safe management rules, adapting to changes at work, assessing leadership and public responses to the coronavirus crisis, or navigating post-pandemic realities, it is all part of understanding how humans think, feel, and behave, says SMU Professor David Chan.


Foster Positivity Amid Covid-19 Challenges, David Chan Aug 2020

Foster Positivity Amid Covid-19 Challenges, David Chan

Research Collection School of Social Sciences

Many behaviours have encouraged positivity during the pandemic. More can be done to create communities that nurture positive attitudes and experiences


How To Make Critical Decisions Amid Covid-19 Pressures, David Chan Jul 2020

How To Make Critical Decisions Amid Covid-19 Pressures, David Chan

Research Collection School of Social Sciences

Time pressure and ambivalence are common when people make decisions in a crisis. Understanding the psychological dynamics helps us slow down to make better decisions.


A Toolkit To Deal With Negative Reactions In The Covid-19 Crisis, David Chan Apr 2020

A Toolkit To Deal With Negative Reactions In The Covid-19 Crisis, David Chan

Research Collection School of Social Sciences

Understanding our own and others’ biases helps us respond better to difficult situations. Adopt what I call the 3Rs approach - refrain, reflect and resolve, to deal with negative events and manage our negative gut emotions and reactions.


The 5cs Of Beating The Coronavirus Outbreak, David Chan Feb 2020

The 5cs Of Beating The Coronavirus Outbreak, David Chan

Research Collection School of Social Sciences

Practise being calm, cautious, considerate, caring and collectivistic. And use these tools to build up arsenal of psychological defence against the virus threat.


Positivity Can Strengthen Immunity, Sean Teck Hao Lee, Andree Hartanto Feb 2020

Positivity Can Strengthen Immunity, Sean Teck Hao Lee, Andree Hartanto

Research Collection School of Social Sciences

In the laboratories of Carnegie Mellon University some years ago, 95 men and 98 women volunteered to have live cold and flu viruses sprayed directly into their noses.


Measurement Matters: Higher Waist-To-Hip Ratio But Not Body Mass Index Is Associated With Deficits In Executive Functions And Episodic Memory, Andree Hartanto, Jose C. Yong Sep 2018

Measurement Matters: Higher Waist-To-Hip Ratio But Not Body Mass Index Is Associated With Deficits In Executive Functions And Episodic Memory, Andree Hartanto, Jose C. Yong

Research Collection School of Social Sciences

Background: The current study aimed to reconcile the inconsistentfindings between obesity, executive functions, and episodic memory byaddressing major limitations of previous studies, including overreliance onbody mass index (BMI), small sample sizes, and failure to control forconfounds.Methods: Participants consisted of 3,712 midlife adults from theCognitive Project of the National Survey of Midlife Development. Executivefunctions and episodic memory were measured by a battery of cognitive functiontests.Results: We found that higher waist-to-hip ratio was associated withdeficits in both executive functions and episodic memory, above and beyond theinfluence of demographics, comorbid health issues, health behaviors,personality traits, and self-perceived obesity. However, higher BMI was notassociated …


Production Of Eggs And Sperm, Jia-Min Amanda Tay, Jin Chuan Yong, Norman P. Li Jun 2018

Production Of Eggs And Sperm, Jia-Min Amanda Tay, Jin Chuan Yong, Norman P. Li

Research Collection School of Social Sciences

The production of gametes is a biological process occurring in organisms that sexually reproduce. Females make gametes called eggs, and males make gametes called sperm. Both egg and sperm cells begin as identical germ cells and are produced through a process of cell division called meiosis, which reduces the number of chromosomes in the germ cell from 46 (diploid) to 23 (haploid). In human males, meiosis begins after birth, and, upon reaching puberty, men produce sperm continuously for the rest of their lives. In human females, meiosis begins before birth and the raw materials for egg cell production are formed …