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Department of Cognitive Science

Synaesthesia Participant Register


Project Title: Synaesthesia Register

The Synaesthesia Research Group at the Department of Cognitive Science, Macquarie University is conducting research on synaesthesia, a phenomenon that involves mixing of information between different senses. People with synaesthesia commonly report seeing colours in association with particular letters of the alphabet, numbers and/or words. Sometimes synaesthetes report other mixtures of sensations, such as tasting specific shapes or smelling music. Although the phenomenon of synaesthesia has been known for well over a century, we still lack a scientific explanation for its occurrence.

The aim of our research is to learn more about synaesthesia in the Australian population. We are therefore seeking people who believe they may have synaesthesia (of any sort) and are willing to become part of our participant registry. If you choose to become part of the registry, we will first ask you to complete a questionnaire about your synaesthetic perceptions and experiences. At a later stage we may contact you to see if you would like to be involved in other synaesthesia research projects.

The questionnaire is available to complete online.  Alternatively, we can email or post out the questionnaire to you.  Completion of the questionnaire can be done over multiple sessions if you prefer. No findings will be published that could identify you or any other individual. Your answers will be held in the strictest confidence, in accordance with University regulations. Your privacy will be protected by storage of the information you provide in a coded, secure database protected by a password known only by members of the Synaesthesia Research Group.

Participation in this research is entirely voluntary. You are thus under no obligation to join the participant registry, complete the current online questionnaire, or be involved in any other research projects in the future. You are free to withdraw from the register at any time without having to give a reason and without consequence.

If you do decide to register and complete the questionnaire, however, we would be grateful if you would answer as many questions as you can. If there are any specific questions that you do not wish to answer, simply leave the item blank. If you would like feedback on the results of the research please contact Associate Professor Anina Rich, MACCS, Macquarie University.

If you have any queries please contact a member of the research team:


If you decide to register, your name will be added to a list of potential participants that may be invited in the future to take part in studies conducted by investigators at the Department of Cognitive Science, Macquarie University studying synaesthesia.

Please note that you are not obliged to participate in any future research projects. For each particular study that we invite you to take part in, you will be given detailed information on what the study involves, either by email, phone, or letter, so that you can decide whether or not you are interested in participating.

The ethical aspects of this study have been approved by the Macquarie University Ethics Review Committee (Human Research). If you have any complaints or reservations about any ethical aspect of your participation in this research, you may contact the Committee through the Research Ethics Officer (telephone [02] 9850 7854, fax [02] 9850 8799, email: Any complaint you make will be treated in confidence and investigated, and you will be informed of the outcome.

Please make a selection.*I have read and understood the Information and Consent details above

Please make a selection.* I am aged over 18, or I am under the age of 18 and have approval from my parents/guardian to complete this form.

For your records please print a copy of this form before submitting it.