Questions about miniblocks,stimulus onset asynchrony,and present stimuli after a sound ends

[Michiel Sovijarvi-Spape]

Hi, 
It depends - I've also heard people making the mistake to call ISI SOA (and
vice versa), but it is, of course, quite possible to have two stimuli
overlapping. Like, in the present case, sound and visuals - a SOA of 0 then
just means they start simultaneously.
Best,
Michiel

-----Original Message-----
From: e-prime at googlegroups.com [mailto:e-prime at googlegroups.com] On Behalf
Of Peter Quain
Sent: 09 March 2012 13:04
To: e-prime at googlegroups.com
Subject: Re: Questions about miniblocks,stimulus onset asynchrony,and
present stimuli after a sound ends


how is it possible to have a SOA of 0ms? ... maybe an ISI?

At 03:43 PM 8/03/2012, you wrote:
>1. I read the tutorial but didn't find the solution to dividing trials
>into miniblocks.I have 66 trials in total and I want to randomly
>assign them into three blocks each with 22 trials.
>2. I have three different SOAs, 0ms, 120ms, and 400ms, as an IV. I
>need randomly insert an SOA (which is accompanied by a blank screen)
>between the prime and target stimuli.How can I do that within 3
>miniblocks?Given 66/3=22 but 22/3 is not an integer, I want to divide
>the SOAs among all trials but not in each miniblock.
>3. My priming stimulus is a sound and my target stimulus is a
>picture.For the SOA inserting btw the prime and target,I want it to
>start immediately after the sound ends.Since the sound stimuli are of
>different durations,how can I tell E-Prime to detect the end of each
>priming sound?Thanks a lot!
>
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