fast priming procedures

[Yoav Bar Anan]

Thanks Georg.
I suspected this would be the answer.
By the way, does it mean that I have to use multiples of 10ms for my
exposure-durations when I use a screen with 100Hz?

Yoav

----- Original Message -----
From: "Georg Odenthal" <odenthal at soz.psychologie.uni-konstanz.de>
To: "Yoav Bar Anan" <baranan at post.tau.ac.il>
Sent: Thursday, November 11, 2004 3:57 PM
Subject: Re: fast priming procedures


> Hi Yoav,
>
> what you try to do is impossible with a ray-tube screen. You would need
> to find a screen with 1000 Hz display rate and screens like that just
> don't exist. The maximum you can get is probably a 100 or 120 Hz
> screens which can display images for 10 ms or 8.33 ms (1000 ms divided
> by Hz rate = minimum possible display time) respectively.
>
> If you want to display stimuli for a shorter duration than 10 or 8 ms
> then you will need an external display device like a special slide
> projector that can flash images that fast (some years a ago a colleague
> of mine did some subliminal priming studies with slide projectors,
> which displayed the slides for very short durations - as far as I know
> this method proved to be successful).
>
> Bye,
>   Georg
>
>
> ==========================================
>
> Georg Odenthal, Dipl.-Psych.
> Social Psychology and Motivation
> Box D39
> University of Konstanz
> 78457 Konstanz, Germany
>
> Phone #: +49 7531 88-2872
> Fax #: +49 7531 88-3286
> Email: odenthal at soz.psychologie.uni-konstanz.de
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