Cross Cultural Differences in Biased Cognition

Lead Research Organisation: King's College London
Department Name: Psychosis Studies

Abstract

Lay Summary

The way in which we process information in the world around us has a significant effect on our health and well being. For example, some people are more prone than others to notice potential dangers, to remember bad things from the past and assume the worst, when the meaning of an event or comment is uncertain. These tendencies are called negative cognitive biases and can lead to low mood and poor quality of life. They also make people vulnerable to mental illnesses.

In contrast, those with positive cognitive biases tend to function well and remain healthy. To date most of this work has been conducted on white, western populations and we do not know whether similar cognitive biases exist in Eastern cultures. This project will examine cognitive biases in Eastern (Hong Kong nationals ) and Western (UK nationals) people to see whether there are any differences between the two. It will also examine what happens to cognitive biases when someone migrates to a different culture. This will tell us whether influences from the society and culture around us have any effect on our cognitive biases. Finally the project will consider how much our own cognitive biases are inherited from our parents.

Together these results will tell us whether the known good and bad effects of cognitive biases apply to non Western cultural groups as well, and how much cognitive biases are decided by our genes or our environment.

Planned Impact

Healthy individuals tend to have positive cognitive biases, which are protective against psychological distress and promote good quality of life. The project investigates cross-cultural differences in these biases, predicting greater negativity and therefore vulnerability in Easterners. It looks at the degree of genetic and environmental influence and whether migration normalises any cultural differences. The data will therefore generate new information about the consequences for health and well-being of life in increasingly internationalised societies.

Who might benefit?

Five stakeholder groups include:
1) The general public, specifically the interface between migrant and non migrant communities.
2) Third sector organisations (e.g. charities) operating within ethnically diverse communities.
3) Overseas students in Higher Education. With the increasing squeeze on resources, higher education institutions are increasingly looking to the overseas market for recruitment, with targets of 30% or higher.
4) Entry point healthcare providers, such as primary care, operating in ethnically diverse settings.
5) Government organisations dealing with migration. This might include the UK Immigration Service, the Office of the Immigration Services Commissioner and downstream organisations.

How might they benefit?

1) The general public/ migrant community interface can benefit from raised awareness of innate and malleable cross-cultural differences in cognition. Findings will enhance understanding of the psychological process of acculturation and promote tolerance and acceptance. Acknowledgement of cultural differences can improve social cohesion and cultural enrichment within host communities. Migrants themselves benefit from greater awareness of the psychological challenges they face, or will face, when adapting to alternative cultures.

2) Third sector organisations will have access to the latest research on cultural differences and acculturation from experts in the field, through this project. They will have the opportunity to hear and consider the scientific the evidence base, and adjust professional practice, where appropriate. For example, if indicated by our findings, some may wish to offer and evaluate novel low cost interventions, designed to redress negative cognitive biases (so called 'bias modification' procedures, which the UK PI has helped to develop).

3) For the UK Higher Education sector there is potential to feed into policy development around overseas admissions. For example, results might inform overseas inductions /summer schools and act to align expectations and evidence on the likely process and timeline of acculturation.

4) Primary healthcare providers are usually the first point of contact for those suffering psychological distress. Findings might improve migrants' health and well-being by highlighting where needs differ, and where they converge, with those of non-migrants. Understanding culturally specific needs and differing vulnerabilities allows better targeting of services, which in turn can yield cost savings. As mentioned in 2 (above) novel low cost interventions might be indicated.

5) Impact on government migration bodies may include shaping policy and enhancing effectiveness. For example a culturally unique profile of cognitive bias might render Eastern migrants to the UK particularly vulnerable to psychological distress. In this case simple changes, such as adjustments to the order and manner in which information is presented, might help mitigate unhelpful biases and promote more balanced information processing.

Publications

10 25 50
 
Description New Knowledge.
Positive cognitive biases protect against psychological disorders, while negative biases exacerbate them, but evidence is based upon Western samples alone.
We found East Asians (Hong Kong residents) were more positively biased on measures of selective attention and interpretation than Westerners (UK residents) consistent with the lower prevalence of psychological disorders in East Asia. Theories of cognitive bias predict that positive East Asian biases would be helping to maintain the population's lower levels of psychopathology. Our research is consistent with this.
Our second research question was whether cognitive biases would be moderated by acculturation. We compared short-term (< 2 months) and long-term (at least 2 years) migrants on cognitive bias measures in both cultures (Hong Kong and the UK). For several tasks, and in both cultures, migrants' positive biases were either more similar to their hosts than their home culture, or showed a significant gradient in this direction; East Asian migrants had reduced positivity bias, while Western migrants had greater positivity when resident in the other culture. Furthermore the duration of migration significantly predicted a combined index of positive bias; the longer a Westerner resides in East Asia, the more positive their cognitive bias profile becomes; the longer East Asians spend in the West, the more their positive bias reduces.

New methods.
We developed and validated culturally appropriate measures of cognitive bias, as no suitable measures existed. Parallel Mandarin and English measures of interpretation bias (the scrambled sentences and similarity rating tasks) and attention bias (the attentional probe and emotional Stroop tasks) were created by translating the English version into Mandarin and checking the adequacy of the translation by back-translating into English, and using decentering (adjustment of each language form) until equivalence was achieved. We then assessed all measures by asking 47 bilingual Mandarin-English speakers to complete each task in both languages to provide psychometric data on the parallel versions.

New resources.
Tasks and materials have been made available on the Open Science Framework (https://osf.io/eca3t/) and the associated publication (Smith et al., 2017 doi:10.3758/s13428-017-0871-0) provides relevant psychometric information.

New questions.
1. Theories of cognitive bias predict that the positive East Asian biases we found would be helping to maintain the population's lower levels of psychopathology. This possibility warrants direct investigation. Research should first cross-sectionally demonstrate that worse psychopathology is associated with more negative cognitive biases in vulnerable or clinical East Asian samples. Thereafter longitudinal cohorts would be needed to assess the power of cognitive bias to discriminate mental well-being from ill-health.
2. The current work should be extended to examine whether recent innovations involving modification of cognitive biases (e.g. Lester et al., 2011, doi: 10.1016/j.jbtep.2011.01.001; Yiend et al., 2011, doi:10.1016/j.brat.2011.10.004) could be adapted to protect East Asian migrants to the West and improve resilience in Westerners.

New collaborations
• Professor Tatia Lee, Head of Department of Psychology and May Professorship in Neuropsychology, the University of Hong Kong. Ongoing research collaboration initiated by the current study.
• Joint PhD pathway established between University of Hong Kong and King's College London, with two candidates currently enrolled.
Exploitation Route The main way that our findings could be taken forward would be the development of an 'app' designed to reduce the negative biases we have identified. Our data demonstrate such biases in two populations, Westerners and East Asian migrants, and these are potentially harmful to mental health. A procedure called 'Cognitive Bias Modification (CBM)' has been shown to successfully ameliorate these biases in other populations, such as people with anxiety disorders or depression. We could develop a version of CBM relevant to our target groups by collaborating with an industrial partner. We have presented our findings to one potential partner, PEAK (http://www.peak.net/ ), who have confirmed their interest. We have submitted an application, with PEAK, for an MRC Industrial Collaborative Award in Science and Engineering (iCASE) Studentship (4 year duration) to provide the resource to work with this partner to develop and evaluate a suitable CBM platform for these target groups.

In addition our findings could be used to:
1. Raise awareness of one of the specific risks to well-being faced by migrant East Asians to the UK.
2. Raise awareness within the general population of the relative vulnerability posed by westerners' negatively biased cognition
3. Initiate conversations about how the above risks might be mitigated, subject to development of suitable CBM procedures.

We envisage interest in the above from the following stakeholders:
1. Healthcare providers, for example, primary care trusts within ethnically diverse boroughs and those with high migrant populations(e.g. South East London)
2. Communities and social services - Charities catering for migrant populations and special interest groups such as The British Chinese Society (http://www.britishchinese.org.uk/); The Chinese Mental Health Association (http://www.cmha.org.uk/)
3. Education, in particular subsections catering for foreign students in the UK, for example the King's College London Study Abroad office, and the King's Worldwide Team.
4. Leisure (tourism), for example the Chinese Information and Advice Centre (http://www.ciac.co.uk/)
Sectors Communities and Social Services/Policy,Education,Healthcare,Leisure Activities, including Sports, Recreation and Tourism

URL http://louiseesmith.wixsite.com/cross-cultural-study/results-so-far
 
Description Upon request of the funders (email communication 1/2019; Charlotte Edwards ESRC Evaluation Officer) we have completed the narrative impact in advance, and have specified this explicitly here, upon their advice. The main way that our findings could be taken forward would be the development of an 'app' designed to reduce the negative biases we have identified. Our data demonstrate such biases in two populations, Westerners and East Asian migrants, and these are potentially harmful to mental health. A procedure called 'Cognitive Bias Modification (CBM)' has been shown to successfully ameliorate these biases in other populations, such as people with anxiety disorders or depression. We could develop a version of CBM relevant to our target groups by collaborating with an industrial partner. We have presented our findings to one potential partner, PEAK (http://www.peak.net/ ), who have confirmed their interest. We have submitted an application, with PEAK, for an MRC Industrial Collaborative Award in Science and Engineering (iCASE) Studentship (4 year duration) to provide the resource to work with this partner to develop and evaluate a suitable CBM platform for these target groups. We are also investigating other funding streams and industrial partners (e.g. Unit 9; https://www.unit9.com/) who might further the above impacts. In addition our findings could be used to: 1. Raise awareness of one of the specific risks to well-being faced by migrant East Asians to the UK. 2. Raise awareness within the general population of the relative vulnerability posed by westerners' negatively biased cognition 3. Initiate conversations about how the above risks might be mitigated, subject to development of suitable CBM procedures. We envisage interest in the above from the following stakeholders: 1. Healthcare providers, for example, primary care trusts within ethnically diverse boroughs and those with high migrant populations (e.g. South East London) 2. Communities and social services - Charities catering for migrant populations and special interest groups such as The British Chinese Society (http://www.britishchinese.org.uk/); The Chinese Mental Health Association (http://www.cmha.org.uk/) 3. Education, in particular subsections catering for foreign students in the UK, for example the King's College London Study Abroad office, and the King's Worldwide Team. 4. Leisure (tourism), for example the Chinese Information and Advice Centre (http://www.ciac.co.uk/)
First Year Of Impact 2019
Sector Communities and Social Services/Policy,Education,Healthcare,Leisure Activities, including Sports, Recreation and Tourism
Impact Types Cultural,Societal

 
Description PhD studentship attached to an endowed chair
Amount HK$126,000 (HKD)
Organisation University of Hong Kong 
Sector Academic/University
Country Hong Kong
Start 09/2015 
End 08/2018
 
Title Validated Chinese/English versions of experimental cognitive bias tasks (simplified and traditional language forms) 
Description Six different tasks developed, backtranslated with decentering, and validated in Mandarin and Cantonese (using both simplifed and traditional characters in parallel versions): 1) Attentional probe task (words) 2) Attentional probe task (faces) 3) Emotional Stroop task (words) 4) Emotional Stroop task (faces) 5) Similarity rating task (words) 6) Scrambled sentences task (words 
Type Of Material Physiological assessment or outcome measure 
Year Produced 2014 
Provided To Others? Yes  
Impact Tasks can be used by labs interested in cross cultural cognition 
URL https://osf.io/eca3t/
 
Title UK & HK behavioural database 
Description Final main outcome dataset for behavioural tasks 
Type Of Material Database/Collection of data 
Year Produced 2017 
Provided To Others? Yes  
Impact It contains the main findings of the project and is the basis of project main outputs (final outcome paper and associated impacts) 
 
Title Validation dataset - Chinese cognitive experimental bias tasks 
Description Data collected from bilinguals demonstrating equivalence of performance on parallel English (UK) and Chinese (simplified) tasks . Raw data can be found in the UK Data Service (http://reshare. ukdataservice.ac.uk/852440/) 
Type Of Material Database/Collection of data 
Year Produced 2017 
Provided To Others? Yes  
Impact Data is available to others to analyse. 
URL https://dx.doi.org/10.5255/UKDA-SN-852440
 
Description Joint PhD pathway 'Psychiatry, Psychology and Neuroscience' 
Organisation University of Hong Kong
Country Hong Kong 
Sector Academic/University 
PI Contribution I established the above Joint PhD pathway within the Faculty, working on behalf of the Dean of Education, Dean of Faculty and other key Faculty staff and liaising with their counterparts at Hong Kong University. I organised the necessary checks and approvals associated with this proposed new collaborative provision. I subsequently presented the proposal to King's College London, liaising with the Vice Principal (International) and Head of the Graduate School. I received feedback, made changes accordingly, and ultimately received final approval of the new pathway on 5/1/2015. The first joint PhD student enrolled on the new pathway, under my joint supervision in September 2015.
Collaborator Contribution My counterpart at Hong Kong University, Head of Department of Psychology, Prof Tatia Lee, led the corresponding approval process at her own institution and received approval in a similar timescale.
Impact One PhD student is registered on this new joint PhD pathway, has commenced studies at the partner institution and will transfer to UK in year 2. One further student is currently applying for entry at the start of academic year 2016/17
Start Year 2015
 
Description University of Hong Kong 
Organisation University of Hong Kong
Department Department of Psychiatry
Country Hong Kong 
Sector Academic/University 
PI Contribution I, and my team, provided expertise and intellectual input around the cognitive bias side of the work. We trained the local Hong Kong researchers in administering the cognitive tasks and using the UK derived questionnaires and data collection templates. We have advised on the content of publications including the approach to analysis, the interpretation of the data and presentation of manuscripts, as well as the correction of English grammar, spelling and style. We provided the Hong Kong collaborators with access to the UK datasets to compare with the locally collected Hong Kong data. We have provided access to the UK infrastructure (facilities, estate, desk, electronic resources etc) during visits of the HK collaborators to the UK.
Collaborator Contribution The HK team provided expertise and intellectual input around the genetics side of the work and collected these data from mainland China. They provide the statistical knowledge to analyse the data and interpret it. They will advise on ongoing publications arising from the Eastern sample genetic data. They have provided UK researchers with access to the genetics dataset. They have provided access for the UK PI to the HK infrastructure (facilities, estate, desk, electronic resources etc) during visits from the UK to HK, and a further visit is expected in 2020.
Impact Outcomes: DOI: 10.1016/j.psychres.2018.04.045 DOI: 10.1007/s11682-018-9940-y DOI: 10.3233/NRE-171471 Multi-disciplinary: Cognitive psychology, genetics, social psychology, psychiatry, neuroscience
Start Year 2014
 
Title E prime programmes running parallel English/ Chinese versions of 5 cognitive bias tasks 
Description 5 x Programme scripts which deliver the experimental tasks using the validated stimuli 
Type Of Technology Software 
Year Produced 2014 
Impact Programmes can be used by other researchers 
 
Title Study Website 
Description Study website used for recruitment, dissemination of results and publicizing the study to broad audience. 
Type Of Technology Webtool/Application 
Year Produced 2014 
Impact Facilitation of recruitment Enquiries 
URL http://louiseesmith.wix.com/cross-cultural-study
 
Description Study website 
Form Of Engagement Activity Engagement focused website, blog or social media channel
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Public/other audiences
Results and Impact Study website is used to publicize study, recruit participants, report findings and disseminate results and their impact
Year(s) Of Engagement Activity 2014,2016,2018,2019
URL http://louiseesmith.wixsite.com/cross-cultural-study