Question mouse AAT output

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Question mouse AAT output

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c.witteki	c.witteki posted 6 Years Ago ANSWER Post Details Share Post
Group: Awaiting Activation Posts: 24, Visits: 86	+x c.witteki - Wednesday, January 17, 2018 +x Dave - Monday, January 15, 2018 Sorry for the delay. I have looked at that file at considerable length: (1) The coordinates look fine, i.e. they are exactly within the ranges they'd be expected to be given the screen and canvas size. (2) As far as I can see, that data file does not show the issue, i.e. all initial responses, final responses and direction changes logged are consistent / what they should be. As such, that particular data file is of less diagnostic value than a file that contains (seemingly?) inconsistent data. (3) The only thing that sticks out in the data is that -- on a few, rare occasions -- there are fairly large jumps in terms of the absolute distance (in pixels) the mouse moves within a single trial. That may suggest either extremely rapid movement (perhaps quicker than the program can reliably detect) or some other problem. That may have something to do with the original problem, but given (2) it's not clear. If you have a data file with extended logging around that _does_ contain inconsistent trials (i.e. initial and final response differ, but no direction change indicated), that would be helpful. Thanks! Hi Dave, sorry, I didn´t check the file as I was sure that the error would occur. Please find attached an output file in which the problem occurs. Best Charlotte Hi Dave, two weeks ago I uploaded an update file containing the error trials. Can you estimate when you will find the time to check the file? Thanks a lot and best, Charlotte
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Dave	Dave posted 6 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 104K	+x c.witteki - Thursday, February 1, 2018 +x c.witteki - Wednesday, January 17, 2018 +x Dave - Monday, January 15, 2018 Sorry for the delay. I have looked at that file at considerable length: (1) The coordinates look fine, i.e. they are exactly within the ranges they'd be expected to be given the screen and canvas size. (2) As far as I can see, that data file does not show the issue, i.e. all initial responses, final responses and direction changes logged are consistent / what they should be. As such, that particular data file is of less diagnostic value than a file that contains (seemingly?) inconsistent data. (3) The only thing that sticks out in the data is that -- on a few, rare occasions -- there are fairly large jumps in terms of the absolute distance (in pixels) the mouse moves within a single trial. That may suggest either extremely rapid movement (perhaps quicker than the program can reliably detect) or some other problem. That may have something to do with the original problem, but given (2) it's not clear. If you have a data file with extended logging around that _does_ contain inconsistent trials (i.e. initial and final response differ, but no direction change indicated), that would be helpful. Thanks! Hi Dave, sorry, I didn´t check the file as I was sure that the error would occur. Please find attached an output file in which the problem occurs. Best Charlotte Hi Dave, two weeks ago I uploaded an update file containing the error trials. Can you estimate when you will find the time to check the file? Thanks a lot and best, Charlotte Hi Charlotte, I did check the file and it clearly shows the issue, the reason for the issue occurring in the 1st place, however, is still unclear to me. As before, the only thing that sticks out are large jumps in the mouse coordinates within the space of a single trial -- something I have been unable to reproduce, so it's unclear to me still how this may or may not relate to the problem. Although those jumps are large, the coordinates aren't "wrong" per se, i.e. they are not outside of the defined screen and canvas dimensions.
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