opiPresent_for_O600 {OPI} | R Documentation |
Implementation of opiPresent for the O600 machine.
Description
This is for internal use only. Use opiPresent()
with the same arguments.
Arguments
stim |
Stimulus to present which is a list with the following elements:
|
nextStim |
The stimulus to present after stim (it is not presented, but projector can move to it during response window) |
Value
A list containing
-
err
String message or NULL for no error. -
seen
1 if seen, 0 otherwise. -
time
Reaction time (if seen).
Examples
## Not run:
chooseOpi("O600")
if (!is.null(opiInitialize()$err))
stop("opiInitialize failed")
s <- list(x=9, y=9, level=dbTocd(db), size=0.43, color="white",
duration=200, responseWindow=1500, checkFixationOK=NULL)
print(opiPresent(s, NULL))
## End(Not run)
[Package OPI version 3.0.2 Index]