2.3.7.3 Button Response (#V)

The Button Response command waits until a game port button is pressed. It then writes '&' and the elapsed time to output. Note specifically that regardless of which button was pressed, '&' is written.

Button Response will terminate Cogsys execution of the experiment if the "@" (BREAKOUT_CHAR) key is entered.

Name:

Button Response

Class:

Game Port

Code:

#V

Syntax:

#V

System:

Waits until any game port button is pressed. Writes '&' to output. Cogsys variable 7 (COGVAR_KEY) is updated with '&'. Cogsys variable 5 (COGVAR_TIME) is updated with the reaction time.

Output:

'&' and the time are written to output.

Breakout:

YES

Test Files:

`BUTR_T01.IN'

tests basic operation

Examples:

input

#V

subject

Press a button after 100 milliseconds.

output

&100