Healthy non-smoking men (18-40) needed for an MRI study to assess how stress influences the brain

We are looking for non-smoking men, aged between 18 and 40 years, who do not have any current health or psychiatric problems, to participate in a psychological study. With this study we like to assess how a gene and a drug interact to affect mental performance and brain activity.

More information regarding this will be send after expressing interest and please feel free to ask questions – showing interest doesn’t commit you to anything.

If you decide to take part, we will ask you to:

  • Provide a cheek swab (to see which form of the gene you have) then, if suitable, come to the lab and:
  • Take a single dose of a drug or a dummy pill;
  • Fill in some questionnaires and give samples of saliva;
  • Complete tasks of memory and reward, while in an MRI brain scanner.

The study will take one afternoon (around 4 hours), for which you will reimbursed together with your travel expenses.


We will reimburse you for your time together with reasonable travel expenses.

Date required



University of Oxford, Department of Psychiatry


Please email Marieke Martens on or call 01865-618301 for more information.