Laptops running eprime

[Leisha Wharfield]

Thanks. I'm looking at 2 gigs of memory for each laptop. I'm loading 
multiple images per slide, too. But I can load the background first, 
pause, then load the actual stimulus. This should help me control 
refresh time, but how do I measure it to be sure?

Leisha

Jeff Maxwell wrote:

>for what it's worth, i verified stimulus/screen timing on some HP
>Pavillion notebook computers with a photodiode and there were no
>problems whatsover.  it very pleasantly surprised me.  i used
>cumulative timing, disabled the sync to vertical onsets and offsets,
>and then pushed the limits down to stimuli of ~50 msec (3 frame)
>duration.
>
>the only time timing was ever an issue was when i was reading in
>multiple image files per slide object.  i was able to remove this
>problem by (a) reading the stimuli into a buffer before calling them
>in the eprime procedure and (b) without pre-loading the images, using
>a pavillion with more memory (1 GB) and a better video card.
>
>cheers,
>jeff
>
>
>On 1/5/06, Michael J. Crowley <michael.crowley at yale.edu> wrote:
>  
>
>>Dear Leisha,
>>If I remember correctly, there were some issues with refresh rates of laptops so
>>that timing may not be as accurate as you want.  This may be neglibile for
>>decision research.  You may want to have a regular CRT to plug into.  I think
>>some of this is addressed in the list serve archive.
>>best,
>>Mike
>>Quoting Leisha Wharfield <leisha at decisionresearch.org>:
>>
>>    
>>
>>>I'm pricing out laptops to run a simple eprime task at various
>>>locations. Do any of you have recommendations for laptops that work well
>>>for this? So far the HP Pavilions and Dell Latitude or Inspiron are
>>>looking good. I'm steering clear of Celeron processors and I don't think
>>>I can use MacIntosh, right?
>>>
>>>Any problems to report? Any praise for specific laptops?
>>>
>>>Thanks,
>>>
>>>Leisha Wharfield
>>>Decision Research
>>>Eugene, Oregon USA
>>>
>>>
>>>      
>>>
>>Michael J. Crowley, Ph.D.
>>
>>Yale Child Study Center
>>230 South Frontage Rd.
>>New Haven, CT 06520
>>
>>
>>
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>>    
>>
>
>
>--
>Jeffrey S. Maxwell
>Laboratory for Brain Imaging & Behavior
>Laboratory for Affective Neuroscience
>jsmaxwell at wisc.edu
>(608) 263 3672
>http://brainimaging.waisman.wisc.edu/~maxwell/
>
>
>  
>

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