the keypress version works instantly it must be a problem with the ttl code part

I just wanted to suggest it seems to me in my experience and looking through many posts on the forums a large number of problems are from conflicts between time and response field combinations
I...

I have about 40 sets of images which are presented as a movie sequence
the sequences are interuptable by a response box using ttl signals as follows
rt:95,(889)>-30
this is the middle response...

Hey Jarvis
Ive got 4 experiments 2 of which work fine all the data is recorded as long as the block is 1
2 of the experiments however record 1 line in the log file only and there set to record...

the trial interval is set to 40ms

hey jarvis,
in one of my experiments i have a sequence of 40images all loaded and displayed in the same trial like so
1 15 1 0 1 pic1, 0,0,0, 40, pic2, 0,0,0, 40, pic3, 0,0,0, 40, pic4, 0,0,0, 40...

the first post by jarvis explains how to have the event display for the correct time just set the max setting for minmax to 500 in the style
i think you need
0-500!
in the minmax colomn on the...

Hey im having a small problem with this again in a seperate experiment

Im trying to display a series of images at 40ms intervals in the same trial(same line in the excel document)
i want to be...

Hey quick question about combining rt with timing events

im using alot of these statements
rt:any,1000

I think this means any keypress before 1000ms elapses will trigger the next event in the...

ok thankyou thats working now
i would have thought having the trial number as the same it would produce the same result since it would be considered still in the same trial conceptually but...

hey jarvis,
thankyou for the reply but its still not perfect
i have changed the intertrial interval to both 40ms and 0ms from the style options menu

the trial data is as follows now
1...

Im trying to display a sequence of images at 40ms intervals but inbetween each image directrt seems to go to a black screen for some time is there a way to eliminate this
is it from the loading time...

for all subjects with a session number that is an even number (e.g., 2, 4, 6, etc) the ‘same’ response button should be on the far left and the ‘different’ response button should be on the...

[edited by moderator]

Is there any way to change the fields and/or add more fields to the start of trial prompt where it asks for subject id condition and range i would like to add age and...

it does make sense i guess but more specifically say i have 70 images in each of the 4 directories would i need 280 entries in my excel table? or is there a way to do a loop in directrt so you can...

Hey im trying to work out what method to use to order my image sequences

I have 2 images displayed on the screen at any one time and the user has respond or image time out after 240ms

the...