Jean CJ Liu

ORCID: 0000-0003-0137-3450
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About
Contact & Profiles
Research Areas
  • Misinformation and Its Impacts
  • Impact of Technology on Adolescents
  • COVID-19 and Mental Health
  • Digital Mental Health Interventions
  • Grief, Bereavement, and Mental Health
  • Organ Donation and Transplantation
  • Eating Disorders and Behaviors
  • Sleep and related disorders
  • COVID-19 epidemiological studies
  • Vaccine Coverage and Hesitancy
  • Media Influence and Health
  • COVID-19 Pandemic Impacts
  • Attachment and Relationship Dynamics
  • COVID-19 Digital Contact Tracing
  • Neuroendocrine regulation and behavior
  • Social Media and Politics
  • Sleep and Wakefulness Research
  • Circadian rhythm and melatonin
  • Child Development and Digital Technology
  • Palliative Care and End-of-Life Issues
  • Obesity and Health Practices
  • Mobile Health and mHealth Applications
  • Body Contouring and Surgery
  • Child and Adolescent Psychosocial and Emotional Development
  • Evolutionary Psychology and Human Behavior

Yale-NUS College
2015-2023

National University of Singapore
2020-2022

Duke-NUS Medical School
2014-2021

Clinical Nutrition Research Centre
2021

Singapore General Hospital
2018

UNSW Sydney
2011-2012

Background During the COVID-19 pandemic, new digital solutions have been developed for infection control. In particular, contact tracing mobile apps provide a means governments to manage both health and economic concerns. However, public reception of these is paramount their success, global uptake rates low. Objective this study, we sought identify characteristics individuals or factors potentially associated with voluntary downloads app in Singapore. Methods A cohort 505 adults from general...

10.2196/24730 article EN cc-by Journal of Medical Internet Research 2021-01-19

Background In a global pandemic, digital technology offers innovative methods to disseminate public health messages. As an example, the messenger app WhatsApp was adopted by both World Health Organization and government agencies provide updates on coronavirus disease (COVID-19). During time when rumors excessive news threaten psychological well-being, these services allow for rapid transmission of information may boost resilience. Objective this study, we sought accomplish following: (1)...

10.2196/22142 article EN cc-by Journal of Medical Internet Research 2020-09-01

We examined how sleep deprivation alters physiological responses to psychosocial stress by evaluating changes in skin conductance.Between-subjects design with one group allocated 24 h of total and the other rested wakefulness.The study took place a research laboratory.Participants were 40 healthy young adults recruited from university.Sleep feedback.Electrodermal activity was monitored while participants completed difficult perceptual task false feedback. All showed increased conductance...

10.5665/sleep.4346 article EN SLEEP 2014-12-31

Worldwide, COVID-19 clusters have emerged within communities of international migrant workers operating in high-density work and living environments. Despite their increased vulnerability, no study has documented the mental health burden amongst these groups. To address this gap, we conducted a survey involved large-scale dormitory outbreaks Singapore.Between 22 June to 11 October 2020, questionnaires were distributed 1011 undergoing extended movement restrictions. Mental symptoms measured...

10.1016/j.jmh.2021.100062 article EN cc-by-nc-nd Journal of Migration and Health 2021-01-01

In the COVID-19 pandemic, confidence in government and access to accurate information have been critical control of outbreaks. Although outbreaks emerged amongst communities international migrant workers worldwide, little is known about how they perceive government's response or their exposure rumors.Between 22 June 11 October 2020, we surveyed 1011 low-waged involved dormitory within Singapore. Participants reported government; whether had heard, shared, believed widely-disseminated rumors;...

10.1016/j.jmh.2021.100069 article EN cc-by-nc-nd Journal of Migration and Health 2021-01-01

While studies suggest that nutritional supplementation may reduce aggressive behavior in children, few have examined their effects on specific forms of aggression. This study tests the primary hypothesis omega-3 (ω-3), both alone and conjunction with social skills training, will particular post-treatment efficacy for reducing childhood reactive aggression relative to baseline.In this randomized, double-blind, stratified, placebo-controlled, factorial trial, a clinical sample 282 children...

10.1017/s0033291718000983 article EN Psychological Medicine 2018-05-10

Introduction: As part of infection control measures for COVID-19, individuals have been encouraged to adopt both preventive (such as handwashing) and avoidant behavioural changes (e.g. avoiding crowds). In this study, we examined whether demographics predicted the likelihood that a person would these behaviours in Singapore. Methods: A total 1,145 participants responded an online survey conducted between 7 March 21 April 2020. We collected demographic information asked report which 17...

10.47102/annals-acadmedsg.2020391 article EN Annals of the Academy of Medicine Singapore 2021-03-31

The hormone oxytocin plays a major role in relationship formation and social functioning animals humans. We review theory research examining the potential for intra-nasal as an adjunctive medication several mental health problems risks: autism, schizophrenia, developmental precursors of psychopathy, phobia, anorexia nervosa, obsessive compulsive disorder, depression (especially postnatal) impaired maternal-infant bonding. Initial findings suggest that administration may alleviate symptoms...

10.2174/157340012798994902 article EN Current Psychiatry Reviews 2012-01-14

Sleep deprivation alters decision making; however, it is unclear what specific cognitive processes are modified to drive altered choices. In this manuscript, we examined how one night of total sleep (TSD) economic making. We specifically changes in uncertainty preferences dissociably from the strategy with which participants engage presented choice information. With high test-retest reliability, show that TSD does not alter or loss aversion. Rather, information rely upon make their Utilizing...

10.3389/fnins.2015.00352 article EN cc-by Frontiers in Neuroscience 2015-10-06

Surveys of mobile phone usage suggest that adolescents habitually use their phones while eating. In this study, we explored whether the manner in which one uses a - to engage social or non-social activity can affect appetite regulation. Participants were fifty male randomly assigned following phone-based activities: (1) sending and receiving messages (social activity), (2) reading neutral article (non-social activity). When given opportunity snack, participants messaging group consumed more...

10.3389/fpsyg.2017.02298 article EN cc-by Frontiers in Psychology 2018-01-07

Introduction: Amid the COVID-19 pandemic, many rumours have emerged. Given prior research linking rumour exposure to mental well-being, we conducted a nationwide survey document base rate of and factors associated with vulnerability. Methods: Between March July 2020, 1,237 participants were surveyed on 5 widely disseminated (drinking water frequently could be preventive, eating garlic outbreak arose because bat soup consumption, virus was created in an American lab, Chinese lab). For each...

10.47102/annals-acadmedsg.2020523 article EN Annals of the Academy of Medicine Singapore 2021-03-31

Summary Previous research suggests that sleep deprivation may heighten normal reactions to an aversive social encounter. In this study, we explored how 24 h of influence responses ostracism. Ninety‐six healthy young adults were randomly allocated either the sleep‐deprivation or well‐rested condition, wherein they engaged in two rounds a ball‐tossing game ( C yberball) programmed so would be included ostracized. As compared with being included, ostracized reduced participants' fulfillment...

10.1111/jsr.12141 article EN Journal of Sleep Research 2014-03-08

Worldwide, social media traffic increased following the onset of COVID-19 pandemic. Although spread content has been described for several platforms (eg, Twitter and Facebook), little is known about how such via private messaging platforms, as WhatsApp (WhatsApp LLC).In this study, we documented (1) used to transmit content, (2) characteristics users based on their usage patterns, (3) patterns link concerns.We experience sampling method track day-to-day during For 1 week, participants...

10.2196/34218 article EN cc-by Journal of Medical Internet Research 2021-11-27

Historically, brain death legislation was adopted in Asia at a much later stage than it the West, with heated public debates surrounding these laws. In this study, we investigated whether poor acceptance of continues to present day, focusing on following: (1) what Asian understands be; (2) how views toward are compared those cardiac death; and (3) extent which perception contributes low rate deceased organ donation that has been observed amongst Asians.Using door-to-door sampling strategy,...

10.1097/tp.0000000000002562 article EN Transplantation 2019-02-12

Abstract Introduction As part of infection control measures for COVID-19, individuals have been encouraged to adopt both preventive (e.g., handwashing) and avoidant behavioural changes avoiding crowds). In this study, we examined whether demographics predicted the likelihood that a person would these behaviours in Singapore. Materials Methods 1145 participants responded an online survey conducted between 7 March - 21 April 2020. survey, collected demographic information asked report which 17...

10.1101/2020.08.06.20169870 preprint EN medRxiv (Cold Spring Harbor Laboratory) 2020-08-07

Despite a large volume of research on the impact other digital screens (eg, televisions) eating behavior, little is known about nature and mealtime smartphone use.We investigated how smartphones are used in everyday meals, whether phone users differ according to use patterns, specific functions (particularly food photography) would affect amount enjoyment eaten.Across 2 studies, we experience sampling method track 1780 meals situ. In study 1, total 137 young adults reported their 3 times per...

10.2196/22929 article EN cc-by JMIR mhealth and uhealth 2021-04-11

Prior research has linked social media usage to poorer mental health. To address these concerns, platforms have introduced digital well-being tools help users monitor their engagement. Nonetheless, little is known about the effectiveness of tools.In this study, we focused on Facebook assess users' awareness and following six tools: Unfollow, Snooze, Off-Facebook Activity, Your Time Facebook, Set Daily Reminders, Notification Settings features. Additionally, examined whether use was...

10.2196/39387 article EN cc-by JMIR Formative Research 2022-07-27

Abstract In the global outbreak of coronavirus disease 2019 (COVID-19), new digital solutions have been developed for infection control. particular, contact tracing mobile applications provide a means governments to manage both health and economic concerns. As public reception is paramount success, we conducted systematic examination sociodemographic characteristics that predict downloads application. Participants were 505 adults who completed web-based survey in Singapore, site first...

10.1101/2020.08.26.20182386 preprint EN medRxiv (Cold Spring Harbor Laboratory) 2020-09-01

Intensive care audits point to family refusal as a major barrier organ donation. In this study, we sought understand by accounting for the decision-maker's mindset. This focused on: (1) how decisions compare when made on behalf of relative (vs self); and (2) confidence in members.Cross-sectional survey Singapore.Participants were recruited from community settings via door-to-door sampling eateries.973 adults who qualified donors Singapore.Although 68.1% participants willing donate their own...

10.1136/bmjopen-2021-051273 article EN cc-by-nc BMJ Open 2021-11-01
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