1 /27 trials

Reminder:

Welcome to the experiment!

First, we will review the instructions for the experiment. Feel free to use the "next" and "back" buttons to move through the instructions. Once you hit "start" however, you will not be able to go back.

Before we begin, we like to know some general demographic information:

  1. Instructor (if applicable):

  2. Age:

  3. Gender

    Female Male

  4. Handedness

    Left Right Both

1. Instructions:

On every trial you'll see an image of a shape (a square or diamond) with two or three circles inside.

For example:

2. Instructions:

The image will appear in appear in one of two locations on the screen:

3. Instructions

If the image appears in the upper location. Your task is to respond to the shape, and ignore the fill (dots).

You will press "z" if the shape is a diamond, and "m" if it is a square

4. Instructions

If the image appears in the lower location. Your task is to respond to the fill, and ignore the shape.

You will press "z" if the fill has two circles, and "m" if it is has three circles.

5. Instructions

Example #1

Since it appears in the lower location and has two circles, the correct response is "z"

6. Instructions

Example #2

Since it appears in the upper location and has a square, the correct response is "m"

7. Instructions

That's it!

When it appears in the upper location, respond to the shape, and when it appears in the lower location respond to the fill (circles).

Reminder:

  • SHAPE:
  • diamond = "Z"
  • square = "M"
  • FILL:
  • two = "Z"
  • three = "M"

When you are ready to begin, hit "start"!

SHAPE

This will be the display for the remainder of the experiment.

Take a second to orient yourself, and when you are ready to begin the first trial hit the "start" button.

FILL

Finished!

On average, your reaction time was ms with % errors for task-switch trials and ms with % errors for task-repeat trials.

You can download your complete data set by clicking the button below.