Yat-Fan Nicolson Siu

Dr. Yat-Fan Nicolson Siu

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Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

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

Representative Publications

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10 July 2013 in PLOS ONE
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Journal Article
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ACAgnes Sui Yin Chan
Agnes Sui Yin Chan
SSSophia L. Sze
Sophia L. Sze
YSYat-Fan Nicolson Siu
Yat-Fan Nicolson Siu
ELEliza M. Lau
Eliza M. Lau
Mei-chun CheungMei-chun Cheung
Mei-chun Cheung
Self-control problems commonly manifest as temper outbursts and repetitive/rigid/impulsive behaviors, in children with autism spectrum disorders (ASD), which often contributes to learning difficulties and caregiver burden. The present study aims to compare the effect of a traditional Chinese Chan-based mind-body exercise, Nei Yang Gong, with that of the conventional Progressive Muscle Relaxation (PMR) technique in enhancing the self-control of children with ASD. Forty-six age- and IQ-matched ASD children were randomly assigned to receive group training in Nei Yang Gong (experimental group) or PMR (control group) twice per week for four weeks. The participants’ self-control was measured by three neuropsychological tests and parental rating on standardized questionnaires, and the underlying neural mechanism was assessed by the participants’ brain EEG activity during an inhibitory-control task before and after intervention. The results show that the experimental group demonstrated significantly greater improvement in self-control than the control group, which concurs with the parental reports of reduced autistic symptoms and increased control of temper and behaviors. In addition, the experimental group showed enhanced EEG activity in the anterior cingulate cortex, a region that mediates self-control, whereas the PMR group did not. The present findings support the potential application of Chinese Chan-based mind-body exercises as a form of neuropsychological rehabilitation for patients with self-control problems. Chinese Clinical Trial Registry; Registration No.: ChiCTR-TRC-12002561; URL: www.chictr.org.

1 June 2016 in Clinical Psychology Review
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Journal Article
Open access
SSSuzanne Ho-Wai So
Suzanne Ho-Wai So
YSYat-Fan Nicolson Siu
Yat-Fan Nicolson Siu
HWHau-Lam Wong
Hau-Lam Wong
WCWai Chan
Wai Chan
PGPhilippa Anne Garety
Philippa Anne Garety
There has been an increase in attention to studying shared mechanisms underlying psychiatric disorders. The 'Jumping to conclusions' (JTC(1)) bias, a tendency to make decisions with certainty based on insufficient information, has been reported in patients with psychosis, and process-based treatment protocols targeting this bias have recently been developed. This review aimed to investigate to what extent the JTC bias, measured by various tasks, is associated with psychotic disorders and other psychiatric disorders using a meta-analytic approach. We examined 6864 articles published between 1990 and 2015, and meta-analysed 46 studies. The first meta-analysis included 40 effect sizes comparing patients with schizophrenia spectrum or other psychotic disorders and healthy controls. There was a hastier data-gathering style in patients with psychosis than healthy individuals, with a moderate aggregated effect size. The second meta-analysis included 18 effect sizes comparing patients with non-psychotic disorders and healthy controls. There was marked heterogeneity in effect sizes and evidence for publication bias. After removal of outliers, the aggregated effect size for JTC was not statistically significant. A planned subgroup analysis showed no significant effect of JTC in depression. Other diagnostic subgroups yielded small non-significant results. Therefore, our findings do not support the suggestion that JTC is a transdiagnostic phenomenon beyond psychosis.

1 September 2014 in Acta Psychologica
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Journal Article
Closed access
YSYat-Fan Nicolson Siu
Yat-Fan Nicolson Siu
HLHeidi H.Y. Lam
Heidi H.Y. Lam
JLJacqueline J.Y. Le
Jacqueline J.Y. Le
APAneta M. Przepiorka
Aneta M. Przepiorka


23 March 2021 in Affective Science
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LSLilian J. Shin
Lilian J. Shin
SMSeth M. Margolis
Seth M. Margolis
LWLisa Walsh
Lisa Walsh
SKSylvia Kwok
Sylvia Kwok
XYXiaodong Yue
Xiaodong Yue
SLSonja Lyubomirsky
Sonja Lyubomirsky
Recent theory suggests that members of interdependent (collectivist) cultures prioritize in-group happiness, whereas members of independent (individualist) cultures prioritize personal happiness (Uchida et al.Journal of Happiness Studies,5(3), 223–239 Uchida et al., 2004). Thus, the well-being of friends and family may contribute more to the emotional experience of individuals with collectivist rather than individualist identities. We tested this hypothesis by asking participants to recall a kind act they had done to benefit either close others (e.g., family members) or distant others (e.g., strangers). Study 1 primed collectivist and individualist cultural identities by asking bicultural undergraduates (N = 357) from Hong Kong to recall kindnesses towards close versus distant others in both English and Chinese, while Study 2 compared university students in the USA (n = 106) and Hong Kong (n = 93). In Study 1, after being primed with the Chinese language (but not after being primed with English), participants reported significantly improved affect valence after recalling kind acts towards friends and family than after recalling kind acts towards strangers. Extending this result, in Study 2, respondents from Hong Kong (but not the USA) who recalled kind acts towards friends and family showed higher positive affect than those who recalled kind acts towards strangers. These findings suggest that people with collectivist cultural identities may have relatively more positive and less negative emotional experiences when they focus on prosocial interactions with close rather than weak ties.

11 February 2025 in Behavioral Sciences
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Raymond Chi-fai ChuiRaymond Chi-fai Chui
Raymond Chi-fai Chui
HLHang Li
Hang Li
Alex Chi-keung ChanAlex Chi-keung Chan
Alex Chi-keung Chan
YSYat-Fan Nicolson Siu
Yat-Fan Nicolson Siu
RCRaysen Cheung
Raysen Cheung
NXNaizan Xu
Naizan Xu
There is a lack of research directly examining the relationships between future orientation, individualism, prosocial engagement and identity status among Chinese youth. This study focuses on the moderating role of identity status in the relationship between individualistic values, future orientation and prosocial behaviours. The study sample consists of 1817 Chinese youth aged between 15 and 28. Six patterns of identity statuses were identified by a hierarchical cluster analysis. Path analysis was conducted to examine the relationship between the independent variables and youths’ prosocial engagement and the moderating effects of identity status. The results showed that future orientation is significantly related to prosocial engagement, while individualistic value is not significantly associated with it. The interaction of future orientation and identity status significantly affects prosocial engagement. The effect of future orientation is greater for those in searching moratorium and carefree diffusion and lower for those in achievement and foreclosure. These imply that time perspective intervention may facilitate the prosocial engagement of students who lack a mature and committed identity.