Raymond C K Chan
Biographic Data
| ID | 1906807 |
|---|---|
| NAME | Raymond C K Chan |
| GIVEN NAMES | Raymond C K |
| FAMILY NAME | Chan |
| SIGNATURE | CHAN R C K |
| AFFILIATIONS | Institute of Psychology, Chinese Academy of Sciences |
| ORCID | 0000-0002-3414-450X |
| VERIFIED | Yes |
| TOTAL WORKS | 24 |
| TOTAL CITATIONS | 31 |
| AUTHOR COUNT | 24 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2001 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 2 |
The Mental Health of Australian, Chinese and Vietnamese University Students
The DASS‐21 has been widely used in university student mental health research. However, studies on its cross‐cultural reliability and validity, particularly among Eastern student populations, remain limited. This study examined the DASS‐21's psychometric properties and measurement invariance across Australian, Chinese and Vietnamese students. Data were drawn from multiple surveys conducted between 2017 and 2021, comprising 2420 university student…
The effect of implementation intentions on event-, time-, and activity-based prospective memory in typically developing children
Prospective memory (PM) refers to the ability to remember and complete planned tasks in the future, which relies on working memory (WM) for encoding and maintaining the intention. Implementation intention is a useful strategy for improving PM function in adults. Yet the effect of implementation intentions in children, and whether factors such as age, gender, and WM capacity could modulate its effect remains unclear. In this study, we examined the…
Mapping genomic loci implicates genes and synaptic biology in schizophrenia
Validity and normative data of the Chinese Prospective and Retrospective Memory Questionnaire (PRMQ) across adolescence, adults and elderly people
The Prospective and Retrospective Memory Questionnaire (PRMQ) is a widely-used questionnaire for evaluating individuals' memory failures in everyday life. However, whether the scale is valid for different age groups and gender, and how memory complaints change with age and gender remains less clear. This study aimed to validate the self-report PRMQ in a large Chinese sample across adolescence and adulthood and investigate age-related changes and …
Negative symptoms correlate with altered brain structural asymmetry in amygdala and superior temporal region in schizophrenia patients
Negative symptoms play an important role in development and treatment of schizophrenia. However, brain changes relevant to negative symptoms are still unclear. This study examined brain structural abnormalities and their asymmetry in schizophrenia patients and the association with negative symptoms. Fifty-nine schizophrenia patients and 66 healthy controls undertook structural brain scans. Schizophrenia patients were further divided into predomin…
Associations of decreased serum total protein, albumin, and globulin with depressive severity of schizophrenia
Our data suggested that decreased serum TP, albumin, and globulin should be regarded as the SCH risk factors and were implicated in the depressive severity of SCH, which further provided the support for the hypothesis that SCH and depression were accompanied by the abnormal inflammatory cytokines with the APR
The co-occurrence of multidimensional loneliness with depression, social anxiety and paranoia in non-clinical young adults
More marked intimate, relational and collective loneliness were evident across profiles that had heightened depression, social anxiety and/or paranoia, suggesting that loneliness may serve as a general risk factor for these psychopathologies. Our findings shed light on the heterogeneity of the co-occurrence of loneliness and various mental health difficulties in non-clinical young adults. Core schemas are suggested to be putative psychological me…
Network analysis of 18 attention-deficit/hyperactivity disorder symptoms suggests the importance of “Distracted” and “Fidget” as central symptoms
The network theory of mental disorders conceptualizes psychiatric symptoms as networks of symptoms that causally interact with each other. Our present study aimed to explore the symptomatic structure in children with attention-deficit/hyperactivity disorder (ADHD) using network analyses. Symptom network based on 18 items of ADHD Rating Scale-IV was evaluated in 4,033 children and adolescents with ADHD. The importance of nodes was evaluated quanti…
The Interplay Between Addictive Behaviour and Psychopathology and Personality in Substance Use Disorder
Promoting computational psychiatry in China
Volition in prospective Memory
Volition is the extent to which actions are generated as a result of internal states in contrast to responses to external conditions or dictated by external events. Delayed intentions about future action are stored in prospective memory until the intended action has to be formed at a later point in time. It is unknown how voluntary choice affects prospective memory. We compared the difference between freely chosen and fixed targets on the reactio…
Sounds Healthy
Mind wandering in schizophrenia
Mind wandering has consistently been associated with impairments in cognition, emotion and daily performance. However, few experimental studies on mind wandering have been conducted in individuals with schizophrenia. The present study aimed to examine mind wandering in schizophrenia patients with a thought-sampling experiment embedded in a rapid go/no-go task and the relationship between the frequency of mind wandering and psychotic symptoms. Fif…
Cross-cultural validation of the Depression Anxiety Stress Scale–21 in China.
The gap between the demand and delivery of mental health services in mainland China can be reduced by validating freely available and psychometrically sound psychological instruments. The present research examined the Chinese version of the 21-item Depression Anxiety Stress Scales (DASS-21). Study 1 administered the DASS-21 to 1,815 Chinese college students and found internal consistency indices (Cronbach's alpha) of .83, .80, and .82 for the Dep…
Devaluation of Rewards for the Future Is Associated With Schizotypal Personality Features
ObjectiveEmpirical evidence has suggested that schizophrenia is associated with dysfunctions in the reward system and working memory. However, little is known about individuals at risk for schizophrenia. In particular, it is not known if those with schizotypal personality features will show similar deficits in these two domains. This study examined whether individuals with schizotypal personality disorder features will subjectively devalue potent…
Facial emotion linked cooperation in patients with paranoid schizophrenia
Background: Patients with schizophrenia consistently show deficits in facial affect perception and social behaviours. It is illusive to suggest that these deficits in facial affect perception cause poor social behaviours. Aim: The present research aims to study how facial affects influence ingratiation, cooperation and punishment behaviours of the patients. Methods: Forty outpatients with paranoid schizophrenia, 26 matched depressed patients and …
Neuropsychological Measures of Executive Function and Antisocial Behavior
A meta-analysis was performed to quantify the association between antisocial behavior (ASB) and performance on neuropsychological executive functioning (EF) measures. This meta-analysis built on Morgan and Lilienfeld's (2000) meta-analysis of the same topic by including recently published studies and by examining a wider range of EF measures. A total of 126 studies involving 14,786 participants were included in the analyses. Antisocial groups per…
To 5 Years Old Children’s Behavioral and Verbal Performances in Level 1 Perspective-Taking
摘要: 为考察3~5岁儿童一级观点采择的行为表现与言语报告之间的潜在差异, 本研究采用“单面镜”范式设计了两个实验。实验1中, 54名儿童成对与实验者一起完成观点采择游戏, 逻辑回归分析结果表明3-5岁儿童的行为表现不存在显著差异(B = -0.225, Wald = 0.38, p = 0.541)。方差分析也没有发现儿童的行为表现和言语报告存在差异。由于实验1中的编码系统存在一些局限, 并且缺少对儿童偏好的控制, 因此在实验2中进行了改进。实验2选择了另外60名3~5岁儿童完成藏玩具游戏。方差分析发现了实验范式类型(行为表现或言语报告)、年龄和性别的三因素交互作用(F (2, 48) = 3.55, p = 0.037, η2 = 0.13)。结果表明随着年龄增加, 男孩与女孩一级观点采择的行为表现都显著提高, 而男孩言语报告的提高程度显著低于女孩。总体而言, 考察儿童一级观点采择时, 行为表现可能比言语报告提供更多信息
A preliminary study of food transfer in sichuan snub‐nosed monkeys ( Rhinopithecus roxellana )
Food transfer happens regularly in a few nonhuman primates species that are also characterized by remarkable social tolerance. Sichuan snub‐nosed monkeys ( Rhinopithecus roxellana ), or golden monkeys, which exhibit high social tolerance in their social relationships are thus of interest to see whether tolerance would extend to food transfer. In this study, branch feeding activity was observed in a semi‐captive group of Sichuan snub‐nosed monkeys…
An instrument to assess mental patients? capacity to appraise and report subjective quality of life
Impact of Untreated Psychosis on Quality of Life in Patients with First-episode Schizophrenia
An Application of Individual Subtest Scores Calculation in the Cantonese Version of the Test of Everyday Attention
An Application of Individual Subtest Scores Calculation in the Cantonese Version of the Test of Everyday Attention
This study aimed to apply Crawford, et al's formula for calculating individual subtest scores of the Cantonese version of the Test of Everyday Attention. A total of 133 (72 men, 61 women) healthy Hong Kong Chinese were recruited from the general public. The sample reported a mean age and education of 35.2 yr. ( SD = 10.2) and 11 yr. ( SD = 3.1), respectively. Tables for examining whether an individual's subtest profile contains reliable and abnor…
Dysexecutive symptoms among a non‐clinical sample
Clinical studies indicate that damage to the frontal lobes may lead to a set of symptoms collectively known as ‘Dysexecutive syndrome’, which is characterized by changes in emotion, personality, motivation, behaviour and cognitive aspects. Factor analytical study using questionnaires measuring dysexecutive problems in everyday life also suggests a fractionation of the dysexecutive syndrome among patients with neurological disorders. As yet, very …
Neuropsychological Measures of Executive Function and Antisocial Behavior
A meta-analysis was performed to quantify the association between antisocial behavior (ASB) and performance on neuropsychological executive functioning (EF) measures. This meta-analysis built on Morgan and Lilienfeld's (2000) meta-analysis of the same topic by including recently published studies and by examining a wider range of EF measures. A total of 126 studies involving 14,786 participants were included in the analyses. Antisocial groups per…
Sounds Healthy
Dysexecutive symptoms among a non‐clinical sample
Clinical studies indicate that damage to the frontal lobes may lead to a set of symptoms collectively known as ‘Dysexecutive syndrome’, which is characterized by changes in emotion, personality, motivation, behaviour and cognitive aspects. Factor analytical study using questionnaires measuring dysexecutive problems in everyday life also suggests a fractionation of the dysexecutive syndrome among patients with neurological disorders. As yet, very …
An Application of Individual Subtest Scores Calculation in the Cantonese Version of the Test of Everyday Attention
An Application of Individual Subtest Scores Calculation in the Cantonese Version of the Test of Everyday Attention
This study aimed to apply Crawford, et al's formula for calculating individual subtest scores of the Cantonese version of the Test of Everyday Attention. A total of 133 (72 men, 61 women) healthy Hong Kong Chinese were recruited from the general public. The sample reported a mean age and education of 35.2 yr. ( SD = 10.2) and 11 yr. ( SD = 3.1), respectively. Tables for examining whether an individual's subtest profile contains reliable and abnor…
An instrument to assess mental patients? capacity to appraise and report subjective quality of life
Impact of Untreated Psychosis on Quality of Life in Patients with First-episode Schizophrenia
A preliminary study of food transfer in sichuan snub‐nosed monkeys ( Rhinopithecus roxellana )
Food transfer happens regularly in a few nonhuman primates species that are also characterized by remarkable social tolerance. Sichuan snub‐nosed monkeys ( Rhinopithecus roxellana ), or golden monkeys, which exhibit high social tolerance in their social relationships are thus of interest to see whether tolerance would extend to food transfer. In this study, branch feeding activity was observed in a semi‐captive group of Sichuan snub‐nosed monkeys…
To 5 Years Old Children’s Behavioral and Verbal Performances in Level 1 Perspective-Taking
摘要: 为考察3~5岁儿童一级观点采择的行为表现与言语报告之间的潜在差异, 本研究采用“单面镜”范式设计了两个实验。实验1中, 54名儿童成对与实验者一起完成观点采择游戏, 逻辑回归分析结果表明3-5岁儿童的行为表现不存在显著差异(B = -0.225, Wald = 0.38, p = 0.541)。方差分析也没有发现儿童的行为表现和言语报告存在差异。由于实验1中的编码系统存在一些局限, 并且缺少对儿童偏好的控制, 因此在实验2中进行了改进。实验2选择了另外60名3~5岁儿童完成藏玩具游戏。方差分析发现了实验范式类型(行为表现或言语报告)、年龄和性别的三因素交互作用(F (2, 48) = 3.55, p = 0.037, η2 = 0.13)。结果表明随着年龄增加, 男孩与女孩一级观点采择的行为表现都显著提高, 而男孩言语报告的提高程度显著低于女孩。总体而言, 考察儿童一级观点采择时, 行为表现可能比言语报告提供更多信息
Facial emotion linked cooperation in patients with paranoid schizophrenia
Background: Patients with schizophrenia consistently show deficits in facial affect perception and social behaviours. It is illusive to suggest that these deficits in facial affect perception cause poor social behaviours. Aim: The present research aims to study how facial affects influence ingratiation, cooperation and punishment behaviours of the patients. Methods: Forty outpatients with paranoid schizophrenia, 26 matched depressed patients and …
Neuropsychological Measures of Executive Function and Antisocial Behavior
A meta-analysis was performed to quantify the association between antisocial behavior (ASB) and performance on neuropsychological executive functioning (EF) measures. This meta-analysis built on Morgan and Lilienfeld's (2000) meta-analysis of the same topic by including recently published studies and by examining a wider range of EF measures. A total of 126 studies involving 14,786 participants were included in the analyses. Antisocial groups per…
Cross-cultural validation of the Depression Anxiety Stress Scale–21 in China.
The gap between the demand and delivery of mental health services in mainland China can be reduced by validating freely available and psychometrically sound psychological instruments. The present research examined the Chinese version of the 21-item Depression Anxiety Stress Scales (DASS-21). Study 1 administered the DASS-21 to 1,815 Chinese college students and found internal consistency indices (Cronbach's alpha) of .83, .80, and .82 for the Dep…
Devaluation of Rewards for the Future Is Associated With Schizotypal Personality Features
ObjectiveEmpirical evidence has suggested that schizophrenia is associated with dysfunctions in the reward system and working memory. However, little is known about individuals at risk for schizophrenia. In particular, it is not known if those with schizotypal personality features will show similar deficits in these two domains. This study examined whether individuals with schizotypal personality disorder features will subjectively devalue potent…
Mind wandering in schizophrenia
Mind wandering has consistently been associated with impairments in cognition, emotion and daily performance. However, few experimental studies on mind wandering have been conducted in individuals with schizophrenia. The present study aimed to examine mind wandering in schizophrenia patients with a thought-sampling experiment embedded in a rapid go/no-go task and the relationship between the frequency of mind wandering and psychotic symptoms. Fif…
Volition in prospective Memory
Volition is the extent to which actions are generated as a result of internal states in contrast to responses to external conditions or dictated by external events. Delayed intentions about future action are stored in prospective memory until the intended action has to be formed at a later point in time. It is unknown how voluntary choice affects prospective memory. We compared the difference between freely chosen and fixed targets on the reactio…
Sounds Healthy
Mapping genomic loci implicates genes and synaptic biology in schizophrenia
Validity and normative data of the Chinese Prospective and Retrospective Memory Questionnaire (PRMQ) across adolescence, adults and elderly people
The Prospective and Retrospective Memory Questionnaire (PRMQ) is a widely-used questionnaire for evaluating individuals' memory failures in everyday life. However, whether the scale is valid for different age groups and gender, and how memory complaints change with age and gender remains less clear. This study aimed to validate the self-report PRMQ in a large Chinese sample across adolescence and adulthood and investigate age-related changes and …
Negative symptoms correlate with altered brain structural asymmetry in amygdala and superior temporal region in schizophrenia patients
Negative symptoms play an important role in development and treatment of schizophrenia. However, brain changes relevant to negative symptoms are still unclear. This study examined brain structural abnormalities and their asymmetry in schizophrenia patients and the association with negative symptoms. Fifty-nine schizophrenia patients and 66 healthy controls undertook structural brain scans. Schizophrenia patients were further divided into predomin…
Associations of decreased serum total protein, albumin, and globulin with depressive severity of schizophrenia
Our data suggested that decreased serum TP, albumin, and globulin should be regarded as the SCH risk factors and were implicated in the depressive severity of SCH, which further provided the support for the hypothesis that SCH and depression were accompanied by the abnormal inflammatory cytokines with the APR
The co-occurrence of multidimensional loneliness with depression, social anxiety and paranoia in non-clinical young adults
More marked intimate, relational and collective loneliness were evident across profiles that had heightened depression, social anxiety and/or paranoia, suggesting that loneliness may serve as a general risk factor for these psychopathologies. Our findings shed light on the heterogeneity of the co-occurrence of loneliness and various mental health difficulties in non-clinical young adults. Core schemas are suggested to be putative psychological me…
Network analysis of 18 attention-deficit/hyperactivity disorder symptoms suggests the importance of “Distracted” and “Fidget” as central symptoms
The network theory of mental disorders conceptualizes psychiatric symptoms as networks of symptoms that causally interact with each other. Our present study aimed to explore the symptomatic structure in children with attention-deficit/hyperactivity disorder (ADHD) using network analyses. Symptom network based on 18 items of ADHD Rating Scale-IV was evaluated in 4,033 children and adolescents with ADHD. The importance of nodes was evaluated quanti…
The Interplay Between Addictive Behaviour and Psychopathology and Personality in Substance Use Disorder
Promoting computational psychiatry in China
The effect of implementation intentions on event-, time-, and activity-based prospective memory in typically developing children
Prospective memory (PM) refers to the ability to remember and complete planned tasks in the future, which relies on working memory (WM) for encoding and maintaining the intention. Implementation intention is a useful strategy for improving PM function in adults. Yet the effect of implementation intentions in children, and whether factors such as age, gender, and WM capacity could modulate its effect remains unclear. In this study, we examined the…
The Mental Health of Australian, Chinese and Vietnamese University Students
The DASS‐21 has been widely used in university student mental health research. However, studies on its cross‐cultural reliability and validity, particularly among Eastern student populations, remain limited. This study examined the DASS‐21's psychometric properties and measurement invariance across Australian, Chinese and Vietnamese students. Data were drawn from multiple surveys conducted between 2017 and 2021, comprising 2420 university student…
Psychology (21 works) · Psychiatry (16 works) · Clinical Psychology (13 works) · Cognition (10 works) · Medicine (10 works) · Developmental psychology (9 works) · Clinical Psychology (8 works) · Cognitive psychology (6 works) · Schizophrenia research and treatment (6 works) · Mental Health Research Topics (5 works)