Hi
I am using Matlab to write an experiment code.
In this experiment, a number stream will be presented at the screen center (i.e. several numbers will be shown one by one).
This number stream will be shown for 4 s (each number for 0.2 s, with a 0.2-s break between two numbers), and then there is a big break (2 s).
I want to record the key press (either M or N, other key presses will be invalid and be ignored) while the numbers are being shown. This key press can happen anytime during the 4 s. And the stream will be presented for exactly 4 s, no matter there is a key press or not.
Actually, it would be better if the computer can play a warning sound when participants make a wrong key press.
However, I don't know how to do this with Matlab PsychToolBox.
Can anyone please help me with this?
Thank you so much!
I am using Matlab to write an experiment code.
In this experiment, a number stream will be presented at the screen center (i.e. several numbers will be shown one by one).
This number stream will be shown for 4 s (each number for 0.2 s, with a 0.2-s break between two numbers), and then there is a big break (2 s).
I want to record the key press (either M or N, other key presses will be invalid and be ignored) while the numbers are being shown. This key press can happen anytime during the 4 s. And the stream will be presented for exactly 4 s, no matter there is a key press or not.
Actually, it would be better if the computer can play a warning sound when participants make a wrong key press.
However, I don't know how to do this with Matlab PsychToolBox.
Can anyone please help me with this?
Thank you so much!