Black Box IEEE 1284 Guía de usuario descargar pdf (Pagina 56)

Page 56 of 98 The Black Box Toolkit

Once we are happy with all the settings we can run the sequence by pressing “F5” or by

clicking on the run button. We should also start the paradigm on the remote PC at this

point. Once both are running stimulus presentations will be automatically detected and

responded to.

Once the sequence has been run through on an event by event basis we can analyse the

log using the Data Analysis module. In this case we are interested in the contribution made

to response timing by the particular mouse in question. Before we begin to check the

response time recorded we should first check that responses were simulated reliably with

an offset of 300ms after the opto-detector detected the stimulus image onset.

Looking at the whole sequence we can see each stimulus image being displayed on line 3

and each simulated response occurring on line 7. By using the measurement cursors and

zooming in we can check the simulated response time of each event. Here we can see

that the simulated response event occurred at exactly 300ms after the onset (leading

edge) of the first refresh of the stimulus image.

Now that we have double checked the responses were simulated as intended, we can

check response times recorded by our paradigm running on the remote PC. How you do

this will vary depending on which Experiment Generator you are using or if running your

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Black Box IEEE 1284 Guía de usuario Pagina 56