[visionlist] simple light sensing for vision science experiments

[vincent ferrera]

http://antipastohw.pbworks.com/w/page/26594512/AMBI%20Light%20Sensor <http://antipastohw.pbworks.com/w/page/26594512/AMBI%20Light%20Sensor>


> On Jun 22, 2018, at 10:50 AM, James Mazer <james.mazer at montana.edu> wrote:
> 
> Hi Daniel,
> 
> We use these around the lab: https://www.amazon.com/dp/B00IM8OD14/ref=pe_2640190_232748420_TE_item <https://www.amazon.com/dp/B00IM8OD14/ref=pe_2640190_232748420_TE_item>.
> 
> It's a small photodiode sensor board with an amp and some minimal logic. Puts out both analog (continuous) signal and thresholded level (on-board pot). Hard to beat for ~$5 assembled... You can cut the traces powering the LEDs if they cause problems with experiment, but useful for debugging..
> 
> best,
> /jamie
> 
> 
> 
> On Wed, Jun 20, 2018 at 10:50 AM Daniel Seshu Joyce <dsjoyce at stanford.edu <mailto:dsjoyce at stanford.edu>> wrote:
> Hi all,
> 
> I am looking to build a simple light sensor to detect transitions between stimuli of different intensities. This will be recorded by an EEG channel and used to segment the EEG data based on the timing of the stimulus transitions. I would be grateful if you could point me in the direction of any resources/schematics that you have used with success - I recall there may have been some discussion on this topic on cvnet/visionlist some years ago, and maybe even a tutorial paper mentioned.
> 
> Many thanks,
> 
> Daniel
> 
> 
> 
> Daniel S. Joyce, PhD
> Postdoctoral Research Fellow
> VA Palo Alto Health Care System & Department of Psychiatry and Behavioral Sciences | School of Medicine | Stanford University | dsjoyce at stanford.edu <mailto:dsjoyce at stanford.edu>
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> 
> -- 
> James Mazer
>   Department of Cell Biology & Neuroscience
>   Montana State University, Bozeman, MT
>   james.mazer at montana.edu <mailto:james.mazer at montana.edu> 406-994-5947
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