Please note the following:

1. This game does NOT run on Safari or on any device other than a computer.
2. Turn off any AdBlocker in order to play the game.
3. Do not refresh your browser during the game otherwise your data will not get saved.
4. It will take approximately 25 minutes to complete the task.
5. The study will run in full-screen mode.
When you are ready, click the button to see the participant information sheet

Click through these task instructions using the buttons at the bottom.

Throughout this game you will use 3 keyboard buttons: the left, up, and right arrows.

You will play 12 rounds of the Undersea Adventure game, as a fish in the ocean. Goal: Get energy (which turns into lives) by eating algae without getting eaten by predators.

Press the RIGHT arrow key to eat algae. The amount of algae changes over time.

This bar tracks your energy. When it is full you gain an extra ‘life’.

But be careful - there may be a predator in the area! Predators can appear at any time, swim towards you and eat you. There will only be one predator at a time.

Press the UP arrow key to check for the predators. The fish will look in a certain direction. Press the UP arrow again and your fish will turn clockwise and look in the next section and so on until you find a predator. When you know where the predator is the fish will always check there when you press the UP arrow.

The number of areas to check will vary across rounds.

Press the LEFT arrow key to hide in a cave. In the cave you can not be eaten and you can watch the predator reach the centre of the screen, swim away and leave the area.

Press the LEFT arrow key again when you feel safe to come out.

If you do not hide in time, the predator will catch you! Then you will lose 1 Life.

Each round lasts 90 seconds (see red arrow for clock). Energy points roll over across rounds.

In each round the predator will either be a jellyfish (swims SLOWLY towards you) or a shark (FAST).

Problems showing instructions. Please read through the text best you can and then do the training rounds

Thank you for taking part in this study.

Unfortunately there is not enough time left for you to attempt the training again and complete the entire experiment. We will reward your effort by sending you a partial payment for the time you spent on the study so far. To receive payment for the training, please return your submission now and contact the researcher. We will send you the partial payment as a bonus.

Questionnaires

You will now be given some questions to answer. Please try to answer each question as carefully and truthfully as possible. Your answers to these questions are important to our research, and in the future your answers could help researchers develop better treatments for psychiatric disorders.

We are also running another study called the Foraging MONKEY Study. We would like to link your data between these two studies. To help us do that please provide us with the same 4 letter code as outlined below.
If you would rather that we did not link your data, please put X in the boxes below and then click 'submit'.

When you click submit, we will take you to the webpage where you can do the Foraging MONKEY study by clicking on the Start button on the bottom of the page.

You have chosen to leave the experiment without finishing.
If this is a mistake, please click "Return to study". To leave the experiment, please click on "Quit study".
Note: If you would like to take a break instead of exiting, you can stay on this page and return to the study later.

We have logged your time in the experiment and will reimburse you (via Prolific's 'partial payment system').

For this, please return your submission on Prolific.

Thank you for taking part in our study.

If you have any concerns or questions please contact us at devneuro@psy.ox.ac.uk.

If you find yourself in need of mental health support these are people who can help.

Your GP - GPs are the key route for accessing support and mental health care (including medication and/or psychological therapies) from the NHS

A school nurser or mental health leader at your school

TalkingSpace run psychoeducational courses, provide computerised and/or telephone based CBT and in some cases other options such as group CBT, mindfulness based therapies and individual therapy. www.talkingspaceplus.org.uk

Samaritans offer a safe place to talk, and are particularly experienced in talking to people who have suicidal feelings. Website: www.samaritans.org

For anyone under 35 having thoughts of suicide, HOPELineUK: https://www.papyrus-uk.org/help-advice/about-hopelineuk

MoodGym at www.moodgym.anu.edu.au

Living Life To The Full at www.livinglifetothefull.com

Mood Juice at www.moodjuice.scot.nhs.uk