Seeking research participants...

Would you like to take part in research? Here are some studies that are looking for participants.

Uploaded: 20 January 2022

Opened: January 2022. Still open

Looking for: Synesthetes with touch-to-vision (touch-colour) or other touch-evoked synesthetic experiences. 

Touch-Color Synesthesia

For: Online survey

Type of research: University Research Study

Based at: University of Amsterdam, The Netherlands

Researcher: Romke Rouw

More info: “We are setting up a study on touch-to-vision synesthesia.  We are particularly interested in color experiences evoked by touching a surface, or exploring an object or surface it with your hands (e.g., touching something soft gives a light-blue color).  But we are also interested to learn about other types of (touch-evoked) synesthetic experiences!

If you (might) recognize this, or have related experiences, could you help us out by filling out a questionnaire?  It is online and takes about 20 to 30 minutes.”

Link to survey 

Uploaded: 7 January 2022

Opened: January 2022. Still open

Looking for: People who have synesthesia and misophonia, and also those who don’t.

Is the autonomous sensory meridian response therapeutic for those experiencing synaesthesia and misophonia?

For: Online survey

Type of research: Master’s dissertation for Postgraduate degree 

Based at: Anglia Ruskin University, UK

Researcher: Ella Staines

More info: “Previous research has displayed these three conditions (synaesthesia, misophonia and ASMR) to be connected in some way, but there are still gaps in the research. Therefore, I wish to see if ASMR has any kind of impact upon the wellbeing of those that experience synaesthesia and misophonia.

I’d be really grateful if anyone could take part! I find these research areas so interesting and want to find out more.”

Link to survey

Uploaded: 15 December 2021

Opened: December 2021. Still open

Looking for: Synesthetes and non-synesthetes, 

Assessing Music-Color Association in People With and Without Synesthesia

For: Survey

Type of research: Studying similarities and differences in synesthetes' and non-synesthetes colour assignations to pieces of music. 

Based atRoyal Conservatoire Antwerp, Belgium

Researcher: Umut Eldem

More info: “I am a composer and a PhD researcher at the Royal Conservatoire Antwerp, Belgium.  For my research on synaesthesia, I am currently doing an online study, for which I am looking for participants.

In this experiment, you will be asked to listen to some music fragments, and pick a color that “goes well” with that music.  (The closest color to your synaesthetic response if you experience it with music; if not, whichever color you feel fits the excerpt.)  There are also some questions about your musical/personal profile.  Participating takes ~30 minutes.

I would be very, very happy for any participation, as well as sharing the study!  The more the better.”

Link to survey

Uploaded: 15 November 2021

Opened: Already open but sent to the Synesthesia List in November 2021. Open until Easter 2022 approx.

Looking for: Synesthetes living in the UK or who can travel easily to southern England; male synesthetes particularly (although women are also welcome); people who have multiple types of synesthesia are preferred

“The 100 Brains Project”

For: Online questionnaires and tests; Brain scan at Sussex University

Type of research: Creating a repository of high definition brain images (MRI) from people with synaesthesia

Based at: Sussex University, UK

Researchers: Jamie Ward

More info:

“We are looking for the brains of synaesthetes!

Would you like images of your brain to be used by researchers to help our understanding of synaesthesia?  Are you in the UK, or planning to visit it?  If so, read on….

What is the 100 brains project?

This is a major project that I hope will create a lasting legacy for researchers in the field that we term the '100 brains project'.  Our ultimate ambition is to have a repository of high definition brain images (MRI) from people with synaesthesia that can be accessed by scientists around the world (anonymised, of course).  This 'connectomics' approach is being applied to account for a wide variety of differences in brain function.  We will be bringing synaesthesia to this global initiative.   

Who can take part?

We are potentially interested in all kinds of synaesthesia, provided we can test for it.  Some of you will have test scores from previous research (e.g. Eagleman battery) that we can use.  We are particularly keen in recruiting people who have multiple types of synaesthesia.  At present, we have recruited more women than men – so we are particularly keen to hear from male synaesthetes (but women are still welcome too!).

The biggest barrier to research participation will be location.  You will have to travel to Brighton in the UK (1 hour from London).  We can assist with travel costs, but can only realistically afford a 3 hour radius.  The project is likely to run to Easter, so perhaps some of you will be travelling through the UK and can drop by?  We also need to check that you are safe to have MRI.

I’m interested in participating, so what will happen next?

You can email Jamie Ward (  If you haven’t previously taken part in our research, then we will check that you have a type of synaesthesia that we can include.  Assuming you are eligible to take part then we would ask you to…

1.      Complete a set of online questionnaires and tests relating to personality, mental health, and cognitive ability (less than two hours)  

2.      Have a scan of your brain using MRI at the University of Sussex (less than 1 hour)  

For this we can pay you £25, give you a video of your own brain, and offer to cover local travel expenses.

How does it differ from previous research?

Synaesthetes often have many different types but we typically only ever get to know about grapheme-colour.  Instead, we ask about a wide variety of types of synaesthesia and, we also get people to take a 2 hour set of questionnaires and tests.  So we document a ‘deep’ phenotype both in terms of synaesthesia and associated characteristics (personality, mental health, cognition).  The Human Connectome Project uses the state of the art method but, crucially, uses a standardised protocol.  So our dataset can grow and can easily be compared with datasets collected by researchers all over the world using the same approach.  Our sample size is far larger than reported in most previous studies.

I am a researcher: how can I get involved?

The method and analysis plan are already in the public domain via a pre-registration so you can see what we have planned (  But there are myriad alternative ways in which this data can be explored.  The behavioural data will be available from the OSF and will point to the location of the brain images when they are available (e.g. on  Researchers will be able to access them freely: i.e. no cost, no need to ask permission, and no need for reciprocity (i.e. we do not expect to be co-authors).  Other research groups may want to use the same HCP protocol so our datasets can be merged and the sample can continue to grow.  N=100 should hopefully be the starting point rather than the end point.  At the present time, we scanned almost N=50 synaesthetes so the earliest possible data release would be late 2022.

Best wishes



Prof. Jamie Ward, School of Psychology, University of Sussex, 

Falmer, Brighton BN1 9QH, UK.

Tel: 0044 01273 876598

Sussex Neuroscience:




 Uploaded 9 September 2021

Opened: September 2021. Appears to still be open (Jan '22).

Looking for: Synesthetes and non-synesthetes

Synesthesia Graduation Project

For: Music listening survey

Type of research: Graduation project

Based at: Avans University of Applied Sciences

Researcher: Wessel Vlemmings

More info: “I’m creating a project which (in a nutshell) will visually detect an ambiance and convert it to matching music. For my research I’m curious to gauge some insights from synesthetes (and non-synesthetes as well)!

This form consists of 10 audio fragments of 30 seconds. Can you please describe the mental picture that comes up with every fragment and the corresponding color(s)?

Thank you for the interest in this research, I greatly appreciate every single submission!”

Go to survey

Uploaded 17 August 2021

Opened: August 2021. Still open

Looking for: Synesthetes (particularly) and non-synesthetes

Research on whether synesthesia influences ideophone recognition

For: Survey

Type of research: Master’s Degree

Based at: Vrije Universiteit Amsterdam (Free University Amsterdam), the Netherlands

Researcher: Sonja Vaziri

More info: “Basically, in this (fun) survey, you will have to guess the meanings of different words. There is also an audio clip for every word, and the total survey time is 10-15 minutes. Since there isn't much research done on this, I would really appreciate every single response :) ”

Go to survey

Uploaded 16 July 2021

Opened: July 2021. Still open

Looking for: Synesthetes and non-synesthetes, especially if you have had COVID-19 (but participants who have not had it are also accepted)

Persistent COVID-19 Effects on Chemical Senses in Synesthetic and Non-Synesthetic Populations

For: Survey

Type of research: Collecting data on the relation between COVID-19 symptoms and synesthetic experiences

Based at: Texas Lutheran University, USA

Researchers: Linden Williamson, Elissa Avila

More info: “Hi! I am a researcher at Texas Lutheran University working on a synesthesia research team! Currently, I am collecting data on the relation between COVID-19 symptoms and synesthetic experiences. This survey is open to everyone and not just people with synesthesia. 

Subjects can expect to take ~15-20 minutes filling out the survey, depending on their response times. If willing to participate, please fill out the consent form before answering the survey questions! Thank you!”

Link to survey

Uploaded 14 July 2021

Opened: 2015 (ongoing study)

Looking for: Synesthetes with other synesthete family members. People with grapheme-colour synesthesia and other types. 

Investigating the genetic basis of synaesthesia

For: DNA sequencing in families to search for relevant gene variants. Also recruiting large numbers of unrelated synesthetes for genome-wide screening.

Type of research: Synesthesia genetics research project

Based at: Max Planck Institute for Psycholinguistics, Nijmegen, The Netherlands

Researchers: Simon E. Fisher, Amanda Tilot

More info: "We are applying the latest genomic methods to search for molecular genetic clues and to investigate overlaps with other brain-related traits. Our work includes next-generation DNA sequencing in extended families where multiple relatives are synaesthetic, across successive generations, to search for rare gene variants that could have large effects on the trait. In a complementary approach, we are recruiting large numbers of unrelated people with synaesthesia, to support genome-wide association screening.

In the Language and Genetics Department, we are interested in finding the genetic basis of synaesthesia. Our synaesthesia research program has two branches - a smaller study focused on families with many synaesthetes, and a large main study looking at unrelated people with synaesthesia. The two branches help us to understand synaesthesia genetics from different perspectives.

Family study: If you think your family might be a good fit for our synaesthesia families project, please email us at It's ok if your family members have different types of synaesthesia!

Large grapheme-colour study: Our large study focuses on grapheme-colour synaesthesia. The tests ask you to choose the colour that you associate with Letters/Numbers, Weekdays, or Months. You do not have to travel to participate. All parts can be completed from home, anywhere in the world!

Link: Project website

Information sheet for participants

Uploaded 6 July 2021

Looking for: people who have Chromesthesia, or Music-Colour Synesthesia, especially artists/musicians

An Investigation for the use of a Synaesthetic Model for Arts Based Practice.”

Opened: June 2021. NOW CLOSED!

Format: Survey and Listening Test (online)

Type of research: Masters degree thesis.

Based at: Trinity College Dublin, Ireland. Music & Media Technologies Department.

Researchers: Matt Winston. Maura McDonnell

More info: “If you have visual experiences of colour when listening to music then your participation in this study would be of great help. The study involves a listening test and takes just over 20 mins to complete. I'd really appreciate anyone who could partake in the test as it will really help out not only my own research, but could potentially help Synesthesia and arts research in the future. Thanks!”

Link to listening test and survey: here


Uploaded 6 July 2021

Looking for: Instrumentalists, i.e. people who are proficient at playing one or more musical instruments. Synaesthetes and non-synaesthetes welcome.

Opened: February 2021. NOW CLOSED.

PhD study - Music-Colour Synaesthesia: Sensorimotor Features and Synaesthetic Experience

Format: Survey and listening test (online)

Type of research: PhD study.

Based at: Department of Music, University of Sheffield, UK

Researcher: Caroline Curwen

More info: This study explores the different images and associations that come to mind when listening to music. Part 1: takes 10 minutes and collects some general demographics and information about your musical background. Part 2: takes 30 minutes and asks you to report on your experiences of 12 musical excerpts.

Link: For more information go to Sheffield University Music Mind Machine: here  Or just go straight to Part One here to start straight away!

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