Anson Kai Chun Chau

Dr. Anson Kai Chun Chau

Psychiatry, The University of Hong Kong, Hong Kong, China
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Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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4 August 2017 in Aging & Mental Health
Verified
Journal Article
Closed access
YFYang Fang
Yang Fang
ACAnson Kai Chun Chau
Anson Kai Chun Chau
AWAnna Wong
Anna Wong
HFHelene H. Fung
Helene H. Fung
Jean WooJean Woo
Jean Woo
Objectives: Information and communicative technology (ICT) use is a potential vehicle for improving the psychological well-being (PWB) of older people. We examined the roles of age, frailty, and social connectedness in the relationship between ICT use and PWB. Method: Telephone interviews were conducted in mid-2016 with 1201 participants aged 50 and above (55.7% female) residing in Hong Kong, China. The participants reported PWB, ICT use (frequency of using the Internet and smart devices), frailty status, contact with family, friends, and neighbors, self-rated health, subjective financial sufficiency, education level, and employment status. Results: We found that the association between ICT and PWB was moderated by age: ICT was associated with PWB only among old-olds (75+), but not in other age groups. This moderation was mediated by contact with family, but not with friends or neighbors. The moderation was further qualified by frailty status: the ICT-by-age moderation was found only among frail, but not pre-frail or robust older adults. Conclusion: The findings suggest that ICT use can potentially enhance the PWB of older adults aged 75+ through facilitating their contact with family members. These benefits might be particularly salient for those who were frail. Improving ICT access and literacy among older adults may be promising.

23 July 2019 in International Review of Psychiatry
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Journal Article
Closed access
ACAnson Kai Chun Chau
Anson Kai Chun Chau
CZChen Zhu
Chen Zhu
SSSuzanne Ho-Wai So
Suzanne Ho-Wai So
There is an increase in interest in the relationships between loneliness and psychosis. The notion of psychosis continuum implies that psychotic experiences extend from clinical populations with psychotic disorders to non-clinical populations. This meta-analytic review aimed to examine the respective associations of loneliness with positive and negative psychotic experiences along the psychosis continuum. A systematic database search was conducted and a total of 30 studies were included in the first meta-analysis and 15 studies were included in the second meta-analysis. There was a medium association between loneliness and positive psychotic experiences (r = 0.302, p < 0.001). In particular, the association between loneliness and paranoia was robust (r = 0.448, p < 0.001). The second meta-analysis revealed a medium association between loneliness and negative psychotic experiences (r = 0.347, p < 0.001). The associations between loneliness and both positive and negative psychotic experiences were found to be smaller among clinical than non-clinical samples. The above findings provided evidence for the associations between loneliness and the two core dimensions of psychotic experiences along the phenomenological continuum. Future research should examine the dynamics of these relationships in both clinical and non-clinical samples, preferably using a single-symptom approach.

AWAnna Wong
Anna Wong
ACAnson Kai Chun Chau
Anson Kai Chun Chau
YFYang Fang
Yang Fang
Jean WooJean Woo
Jean Woo
Loneliness is a common experience among older people that is associated with health risks and negative well-being. As a psychological phenomenon, it has typically been defined in Western research literature as the discrepancy between desired and actual interpersonal relations. In our qualitative study in Hong Kong, we offer insight into ageing and loneliness in an urban environment of the non-Western world and propose to reconceptualise loneliness by exploring older people’s experience of alienation at the societal level as an important but often neglected dimension of their loneliness. Thirty-seven community-dwelling, Chinese adults aged 65 and above were interviewed in focus groups and their accounts analysed and interpreted using a phenomenological approach. Findings revealed that focus group participants perceived insufficient care for older people, a growing distance between themselves and society, and their disintegrating identity in society to be primary sources of societal alienation. In response, older people adopted a more passive lifestyle, attributed marginalisation and inequality to old age, and developed negative feelings including unease towards ageing, vulnerability and helplessness, and anger. The emergence of these key components and underlying themes of societal alienation illuminated neglected facets of the psychological phenomenon of loneliness and highlighted new implications for policy, practice, and research from a societal perspective to address older people’s loneliness in urban settings.

26 July 2018 in Cognitive Neuropsychiatry
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Journal Article
Closed access
SSSuzanne Ho-Wai So
Suzanne Ho-Wai So
ACAnson Kai Chun Chau
Anson Kai Chun Chau
EPEmmanuelle R. Peters
Emmanuelle R. Peters
JSJoel Swendsen
Joel Swendsen
PGPhilippa A. Garety
Philippa A. Garety
SKShitij Kapur
Shitij Kapur
Introduction: There is an ongoing debate about whether negative affect are consequences or triggers of paranoid thinking. It has also been suggested that aberrant salience is central to the development of delusions. This study modelled the moment-to-moment relationships between negative affect, aberrant salience, and paranoia in acute inpatients with psychosis. Methods: Participants with active paranoid delusions were assessed using clinical rating scales and experience sampling method (ESM) over 14 days. ESM data were analysed using time-lagged multilevel regression modelling. Results: Both negative affect and aberrant salience predicted an increase in paranoia at the next time point. Conversely, the level of paranoia did not predict subsequent changes in negative affect or aberrant salience. Negative affect predicted an increase in aberrant salience at the next time point, and vice versa. Conclusions: Negative affect and aberrant salience appear to drive and exacerbate paranoia, rather than being merely the sequelae of the symptom. Our results suggest both direct and indirect (via aberrant salience) pathways from negative affect to paranoia.

CYChun Yang
Chun Yang
DLDaniel. W.L Lai
Daniel. W.L Lai
YSYi Sun
Yi Sun
CMChun-Yin Ma
Chun-Yin Ma
ACAnson Kai Chun Chau
Anson Kai Chun Chau
Existing literature on the associations between use of mobile applications (i.e., mobile apps) and loneliness among older adults (OAs) has been mainly conducted before the outbreak of the COVID-19 pandemic. Since mobile apps have been increasingly used by OAs during the pandemic, subsequent effects on social and emotional loneliness need updated investigation. This paper examines the relationship between mobile app use and loneliness among Hong Kong’s OAs during the pandemic. In our research, 364 OAs with current use experience of mobile apps were interviewed through a questionnaire survey conducted during July and August 2021, which assessed the use frequency and duration of 14 mobile app types and levels of emotional and social loneliness. The survey illustrated communication (e.g., WhatsApp) and information apps were the most commonly used. Emotional loneliness was associated with the use of video entertainment (frequency and duration), instant communication (duration), and information apps (duration). Association between video entertainment apps’ use and emotional loneliness was stronger among older and less educated OAs. Our findings highlight the distinctive relationships between different types of apps and loneliness among Hong Kong’s OAs during the pandemic, which warrant further exploration via research into post-pandemic patterns and comparative studies in other regions.

27 February 2019 in Gerontology
Verified
Journal Article
Closed access
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YFYang Fang
Yang Fang
ACAnson Kai Chun Chau
Anson Kai Chun Chau
HFHelene H. Fung
Helene H. Fung
Jean WooJean Woo
Jean Woo
Background: Given findings that generally support the benefits of information and communication technology (ICT) for older adults’ psychosocial adjustment, one might surmise that lonely older adults, who have a stronger need for psychological support, would reap more psychosocial benefits from ICT use. However, scant research has examined this view, much less the likelihood that ICT use might worsen the psychological well-being of lonely older adults, as has been shown to be the case in younger adults. Objective: To examine whether the association between ICT use and psychological adjustment (i.e., psychological distress and sense of community [SOC]) among older adults depends on their loneliness levels. Methods: A representative sample of 738 Hong Kong SAR Chinese older adults aged 60 years or older (56% female) was interviewed in 2017 on loneliness, frequency of ICT use (i.e., Internet and smart devices), psychological distress (6-item Kessler scale; K6), and SOC. Results: Regression analyses showed that loneliness significantly moderated the relationship between ICT use frequency and psychological adjustment (psychological distress and SOC); more frequent ICT use was associated with more psychological distress and less SOC, with higher levels of loneliness. Conclusion: These findings suggest that ICT use may be a mixed blessing for older adults, i.e., using more ICT might predict worse psychological adjustment among lonelier older adults. Efforts that promote ICT use among older adults should take their loneliness levels into account.