Hector Tsang

Prof. Hector Tsang

Hong Kong Polytechnic University, Hong Kong, China

Research Focus & Metrics

Academic Career Length

27Years (2000-Present)

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

Representative Publications

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31 January 2008 in Schizophrenia Bulletin
Verified
Journal Article
Closed access
Morris D BellMorris D Bell
Morris D Bell
HTHector Tsang
Hector Tsang
TGT. C. Greig
T. C. Greig
GBG. J. Bryson
G. J. Bryson
Social cognition has been suggested to be an important mediating variable in the relationship between neurocognition and functional outcome. The present study tested this model in relation to work rehabilitation outcome and added self-reported social discomfort as a possible mediator. One hundred fifty-one participants with schizophrenia or schizoaffective disorder participated in a 26-week work therapy program. Neurocognition was constructed as a latent construct comprised of selected variables from our intake test battery representing executive functioning, verbal memory, attention and working memory, processing speed, and thought disorder. Social cognition at intake was the other latent construct comprised of variables representing affect recognition, theory of mind, self-reported egocentricity, and ratings of rapport. The 2 latent constructs received support from confirmatory factor analysis. Social discomfort on the job was based on their self-report on a weekly questionnaire. In addition, we constructed a composite rehabilitation outcome that was based on how many hours they worked, how well they worked, and how complex was the job that they were doing. Path analysis showed direct effects of neurocognition on rehabilitation outcome and indirect effects mediated by social cognition and social discomfort. This model proved to be a good fit to the data and far superior to another model where only social cognition was the mediating variable between neurocognition and rehabilitation outcome. Findings suggest that neurocognition affects social cognition and that poorer social cognition leads to social discomfort on the job, which in turn leads to poorer rehabilitation outcomes. Implications for rehabilitation interventions are discussed.

1 January 2008 in Psychiatric Rehabilitation Journal
Verified
Journal Article
Closed access
KFKelvin M. T. Fung
Kelvin M. T. Fung
HTHector Tsang
Hector Tsang
PCPatrick W. Corrigan
Patrick W. Corrigan
Treatment non-adherence has frequently been noticed among people with schizophrenia. Self-stigma towards one's mental illness is believed to be a contributing factor undermining adherence. This study aimed at obtaining empirical support regarding the relationship between psychosocial treatment adherence and self-stigma. Other significant predictors of adherence to psychosocial interventions were to be identified. Eighty-six people with DSM IV diagnoses of schizophrenia were recruited from psychiatric hospitals and community settings in Hong Kong. Their level of stigma, self-esteem, self-efficacy, insight, psychosocial treatment adherence and demographic data were collected. Multiple regression was used to investigate the adjusted relationship between psychosocial treatment adherence and the selected independent variables. Higher level of self-stigma, poorer current insight on the social consequences of having mental illness, and living with others were found to be significant predictors of poor psychosocial treatment attendance. Better self-esteem and current insight about the negative social consequences were significant predictors of better psychosocial treatment participation. Self-stigma and self-esteem exhibited the strongest contributions to psychosocial treatment adherence. Self-stigmatization is associated with the level of treatment adherence among people with schizophrenia, and its negative effect was found to intensify along the self-stigmatization process. Further studies to enhance understanding of self-stigma and improve treatment adherence are suggested.

1 September 2007 in International Journal of Social Psychiatry
Verified
Journal Article
Closed access
KFKelvin M.T. Fung
Kelvin M.T. Fung
HTHector Tsang
Hector Tsang
PCPatrick W. Corrigan
Patrick W. Corrigan
CLChow S. Lam
Chow S. Lam
WCWai-Ming Cheng
Wai-Ming Cheng
This study translated and validated the Chinese Version of the Self-stigma of Mental Illness Scale (CSSMIS), which may be used to measure self-stigma of mental health consumers in China. We also examined its correlation with self-esteem, self-efficacy and psychosocial treatment compliance. A cross-sectional observational study was implemented. Some 51 males and 57 females who suffered from severe mental illness were recruited from psychiatric settings in Hong Kong. They were required to complete the Chinese Version of the Self-stigma of Mental Illness Scale, the Rosenberg Self-esteem Scale and the Self-efficacy Scale. Their level of compliance during psychosocial treatment and their demographic information were recorded by their case managers. Exploratory factor analysis revealed two homologous factors for the four subscales of the CSSMIS. Factor 1 was related to the negative beliefs and consequences of having mental disorders, whereas Factor 2 was related to positive beliefs. The perceived stigma subscale and the three self-stigma subscales were strongly inter-correlated. Significant correlations were also found between almost all subscales of the CSSMIS and the remaining scales. The psychometric properties of the CSSMIS are statistically acceptable. The results also suggest that stigma played a detrimental role in undermining self-esteem, self-efficacy and psychosocial treatment compliance. Implications for recovery of mental health consumers are discussed.

Verified
Journal Article
Open access
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TFTimothy Fung
Timothy Fung
BLBenson Wui-Man Lau
Benson Wui-Man Lau
SNShirley P.C. Ngai
Shirley P.C. Ngai
HTHector Tsang
Hector Tsang
Essential oils (EOs) are extracted from plants and contain active components with therapeutic effects. Evidence shows that various types of EOs have a wide range of health benefits. In our previous studies, the potential of lavender EO for prevention and even treatment of depression and anxiety symptoms was demonstrated. The favourable outcomes may be due to multiple mechanisms, including the regulation of monoamine level, the induction of neurotrophic factor expression, the regulation of the endocrine system and the promotion of neurogenesis. The molecules of EOs may reach the brain and exert an effect through two distinctive pathways, namely, the olfactory system and the respiratory system. After inhalation, the molecules of the EOs would either act directly on the olfactory mucosa or pass into the respiratory tract. These two delivery pathways suggest different underlying mechanisms of action. Different sets of responses would be triggered, such as increased neurogenesis, regulation of hormonal levels, activation of different brain regions, and alteration in blood biochemistry, which would ultimately affect both mood and emotion. In this review, we will discuss the clinical effects of EOs on mood regulation and emotional disturbances as well as the cellular and molecular mechanisms of action. Emphasis will be put on the interaction between the respiratory and central nervous system and the involved potential mechanisms. Further evidence is needed to support the use of EOs in the clinical treatment of mood disturbances. Exploration of the underlying mechanisms may provide insight into the future therapeutic use of EO components treatment of psychiatric and physical symptoms.

5 September 2006 in International Journal of Geriatric Psychiatry
Verified
Journal Article
Closed access
PDF file
HTHector Tsang
Hector Tsang
KFKelvin M. T. Fung
Kelvin M. T. Fung
ACAshley S. M. Chan
Ashley S. M. Chan
GLGrace Lee
Grace Lee
FCFong Chan
Fong Chan

16 April 2021 in Journal of Behavioral Addictions
Verified
Journal Article
Open access
PDF file
ICi hua chen
i hua chen
CCChao-Ying Chen
Chao-Ying Chen
APAmir Pakpour
Amir Pakpour
Mark D GriffithsMark D Griffiths
Mark D Griffiths
Chung-Ying LinChung-Ying Lin
Chung-Ying Lin
HTHector Tsang
Hector Tsang
Background and aims: Due to the rapid spread of the novel coronavirus disease 2019 (COVID-19), policies based on the nature of “spatial distancing” have been implemented and have resulted in school suspensions and online learning among schoolchildren. In order to examine the impact of such policies on schoolchildren, the aims of the present study were to (i) assess changes in the level of engagement in three internet-related activities (smartphone use, social media use, and gaming) before and during the COVID-19 outbreak, including prolonged and problematic engagement in these activities; (ii) investigate the differences of psychological distress before and after COVID-19 outbreak; and (iii) to use structural equation modeling to investigate the mediating roles of problematic internet-related behaviors in the causal relationships of psychological distress and time spent on internet-related activities.Methods: Self-report measures were used to assess internet-related activities and psychological distress. Time spent on internet-related activities, problematic use of internet-related activities, and psychological distress were collected from primary school students (N = 535; 265 boys; M age = 10.32 years [SD = 0.84]). The data were first collected before the COVID-19 outbreak (i.e., early November 2019) and then collected again during the school suspension due to COVID-19 outbreak (i.e., end of March 2020) for comparisons of changes.Results: Schoolchildren spent significantly more time on the smartphone (increased 1.02 h daily; P < 0.001) and social media (increased 0.73 h daily; P < 0.001) but not gaming (increased 0.14 h daily; P = 0.07) during the school suspension compared to the baseline. Schoolchildren who increased by 15 or 30 min daily on internet-related activities showed an increased level of psychological distress. The association between problematic use of social media and psychological distress was stronger during the school suspension (β = 0.584) than at the baseline (β = 0.451; P < 0.001).Conclusion: Increased problematic use of internet-related activities among schoolchildren was associated with greater psychological distress. Parents should therefore monitor internet-related activities and psychological distress of their children to support their mental health.