biac:analysis:roi_et
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biac:analysis:roi_et [2011/04/25 19:47] – petty | biac:analysis:roi_et [2011/04/25 19:57] – [Calculate Eyetracking Hits] petty | ||
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===== Calculate Eyetracking Hits ===== | ===== Calculate Eyetracking Hits ===== | ||
- | Hits are considered eyetracking points where gaze was within ROIs defined in step 1. | + | Hits are considered eyetracking points where gaze was within ROIs defined in step 1, during the duration of each image. |
Chris written a perl script (**merge_eyetracking.pl**), | Chris written a perl script (**merge_eyetracking.pl**), | ||
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< | < | ||
+ | |||
+ | The processing script will add elements to the behavioral XML that represent hits and samples of valid eyetracking points from within your duration, this instance has 120 valid sample, with more than 50% inside the ROI: | ||
+ | |||
+ | < | ||
+ | <event type=" | ||
+ | < | ||
+ | < | ||
+ | <value name=" | ||
+ | <value name=" | ||
+ | <value name=" | ||
+ | <value name=" | ||
+ | <value name=" | ||
+ | <roi type=" | ||
+ | < | ||
+ | < | ||
+ | < | ||
+ | < | ||
+ | <value name=" | ||
+ | <value name=" | ||
+ | </ | ||
+ | <value name=" | ||
+ | </ | ||
+ | </ | ||
+ | |||
+ | At this point you could use these additional XML elements when extracting your onsets for FSL, etc by including some hit criteria in your xcede_extract_schedules.pl queries. |
biac/analysis/roi_et.txt · Last modified: 2024/06/21 15:44 by 127.0.0.1