In this experiment, you will see shapes placed against a series of colorful squares. Your task is to count the number of times circles are present in each trial. Once the shapes and colorful squares stop flashing, please provide your answer by pressing 0, 1, 2, 3, or 4 key on your computer keyboard.

Here is an example of a trial. In the real experiment, the images will take up about the full size of your screen. Click the button to see the trial. There are two circles present this in trial. If this were the real trial, you should respond '2' since there are 2 circles present in this stream. As the shapes will flash very quickly, you may want to practice a few times.



Once you are ready, press the space bar to start the trials.

Respond
1. Did you notice anything different on the last trial?

yes

no


2. Did you notice something different about the background stream of images?

yes

no


If given these 5 options, can you choose the one you think best fits the image that was presented

none of the above



1. Did you notice anything different on the last trial?

yes

no


2. Did you notice something different about the background stream of images?

yes

no


If given these 5 options, can you choose the one you think best fits the image that was presented

none of the above



1. Did you notice anything different on that trial?

yes

no


2. Did you notice something different about the background stream of images?

yes

no


If given these 5 options, can you choose the one you think best fits the image that was presented

none of the above



1. Did you notice anything different on that trial?

yes

no


2. Did you notice something different about the background stream of images?

yes

no


If given these 5 options, can you choose the one you think best fits the image that was presented

none of the above



Data has been saved. Thank you for participating in my experiment!

Now, you will no longer need to count the number of circles. Instead, pay attention to the cartoon that appears between the shapes and colorful squares. There are a total of 3 trials in this part of the experiment. When you are ready, press spacebar to continue the experiment.