E-Prime 1.0 and presenting more stimuli simultaneously

[Michiel Sovijarvi-Spape]

Hi,

This is very easily done with E-Prime 1 (though I hope you do have the final
version of it installed - not 1.0). That is, you can easily just play a
sound and have the rest of the experiment continue, in parallel. So, every
trial, show:

1. A slide of duration 500/15 (33 ms or so). On this slide, and every next
one, you show the image. However, only on this slide, you initiate the
audio. Insert a sound sub-object thingy which points to the right file, with
buffer of size at least as long as the longest audio file you intend to
play. Crucially, set StopAfter to false, so that the audio continues playing
even if the slide is no longer visible.

2. Insert images 2-15, either using slides or just imagedisplays. 

 

Easy and should work. It's better, IMHO, than using animated .gifs (despite
http://www.dailydot.com/culture/25-year-anniversary-gifs-collection/ ), or
video files, because you can never be all that sure as to whether frames are
correctly timed. 

Best,

Mich

 

 

From: e-prime at googlegroups.com [mailto:e-prime at googlegroups.com] On Behalf
Of Massimiliano Elia
Sent: 17 June 2012 16:24
To: e-prime at googlegroups.com
Subject: E-Prime 1.0 and presenting more stimuli simultaneously

 

I've already asked a few questions about this, but i realized the answers to
my problem were only acceptable if i were in possess of E-Prime 2.0.
Unfortunately, i'm working on E-Prime 1.0. I still think/hope there might be
a solution to this, so i'll try to explain again:

I have to show 15 pictures in succession (as if they were a video, more
specifically the video of a guy showing an expression of disgust), and at
the same time they have to hear an audio stimuli (the sound of a person
expressing fear), after they will have to choose which emotion they saw. The
audio lasts 500 ms, and i have to make the video last the same amount of
time (when i tried to do a no-audio version of the experiment, i just made
evry picture last 33 ms, it worked good, looked like a video). The problem
is that these 15 pictures have to be shown during the audio. I tried making
a GIF animated picture with the 15 pictures in sequence, but e-prime 1.0 is
not compatible with gif pictures. I thought of making a video, but e-prime
1.0 doesn't work with videos. Is there a way i can work with the structure
of the experiment so that i can do this? Because i've tried putting a slide
with the first picture and the audio followed by imagedisplays of the other
14 pictures, but it doesn't get to the second picture before completing the
audio, and that's not what i need.
Any help?

thank you in advance.

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