<div dir="ltr">Hi There,<br><br>I am a complete newbie to PyMVPA, and currently doing an eyetracking study. I'm currently navigating the eyetracking tutorial, but wanted to get your pearls as well- thanks for your patience in advance. My study has a within-subjects design, where each trial is either condition A or B, and we're looking at gaze differences between the conditions. Stimuli are randomly presented either on the left or the right side of the screen, so the analysis is a little complex . I am hoping to do two different things:<br>
<br>1. Input difference scores between (Xcoord- Xcenter) and (Ycoord- Ycenter) for each trial- there will be a different number of trackable instances for each timepoint (depending on whether track was lost, blink frequency, etc) to predict condition A vs B<br>
<br clear="all">2. Input a scalar value indicating the percentage of time spent within the stimulus area of interest on the screen (ie, 0.70 = on the stimulus for 70% on stimulus), for each trial, and again predict whether the trial was of condition A or B, but this time have one value per trial<br>
<br>I was wondering how you would recommend approaching the two analyses outlined above. <br><br>Thanks so much for your help,<br>Bruna Martins<br><br><br>-- <br><div dir="ltr"><b>Bruna S. Martins</b><div><b><br></b><div>
<div><div>Ph.D. Student- Clinical Psychology</div><div>Emotion & Cognition Lab- Gero 341</div><div><div>University of Southern California</div><div>(213) 821- 5701<br></div></div></div></div></div></div><br>
</div>