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Text File | 1995-12-19 | 1.9 KB | 44 lines | [TEXT/PsyS] |
- { This script demonstrates an inconsistency in the timing...
- { The aim is to present a sound and a picture simultaneously for 6 sec epochs.
- { Instructions: Play this script as it is. Script 1 will play. Notice what happens at 60".
- { Then reverse the comments to play script 2. To do this, select the lines beginning with
- { "r" for random trial of script 2, eg by triple clicking and dragging, then use the Uncomment
- { menu item in the Control menu (shortcut command-]). To prevent playing the Script 1 lines,
- { select them , and then use the Comment menu item (or command-[) to avoid playing them.
- { Then run the script again.
-
- { Preferences: default & in Resources pane, set play sounds through check box.
-
- { Script 1: this one does not run true to the exact 60" cycle. Why?
-
- {type num pre max tot rep stpEvt bg st bg-file st-file
- r 2 0.000 0.100 1.000 60.000 m s p Moof Ball 11
- r 1 0.000 0.000 4.900 0.000 n n n n n
-
- r 2 0.000 0.100 1.000 0.000 m s p Blah Ball 12
- r 1 0.000 0.000 4.900 0.000 n n n n n
-
- r 2 0.000 0.100 1.000 0.000 m s p Moof Ball 13
- r 1 0.000 0.000 4.900 0.000 n n n n n
-
- r 2 0.000 0.100 1.000 0.000 m s p Blah Ball 14
- r 1 0.000 0.000 4.900 0.000 n n n n n
-
- { Script 2: this one works. Can you see the difference?
- {type num pre max tot rep stpEvt bg st bg-file st-file
- {r 2 0.000 0.100 1.100 60.000 m s p Moof Ball 11
- {r 1 0.000 0.000 4.900 0.000 n n n n n
- {
- {r 2 0.000 0.100 1.100 0.000 m s p Blah Ball 12
- {r 1 0.000 0.000 4.900 0.000 n n n n n
- {
- {r 2 0.000 0.100 1.100 0.000 m s p Moof Ball 13
- {r 1 0.000 0.000 4.900 0.000 n n n n n
- {
- {r 2 0.000 0.100 1.100 0.000 m s p Blah Ball 14
- {r 1 0.000 0.000 4.900 0.000 n n n n n
-
- { Conclusion: the total interval is what has determined script 1's durations. Making the
- { max interval of 0.1 only cuts into the total time. In script 2, pre and max intervals
- { are specifically used making them more than 1 sec and both grouped trials therefore
- { do add to 6 as intended! Phew!