Timeline for How to test whether button pressing behaviour is random or is in response to a stimulus?
Current License: CC BY-SA 3.0
10 events
| when toggle format | what | by | license | comment | |
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| Jul 17, 2012 at 22:06 | history | edited | Wynn | edited tags | |
| Jul 17, 2012 at 21:30 | history | edited | Wynn | CC BY-SA 3.0 | edited title |
| Jul 17, 2012 at 16:48 | comment | added | Wynn | Thanks for your comment, @Felix. Someone referred me to the Integral Pulse-Frequency Modulation in neural spike train, and part of the idea is that the frequency of the pulse train is varied in accordance with the instantaneous amplitude of the modulating signal at sampling intervals. In my case, the "signal" is what the person perceived during a visual sample, and we have our own theory of how that works. My null hypothesis: the differences in the time intervals (time between samples) are random. I am still looking for a way to test this, thanks. | |
| Jul 17, 2012 at 12:49 | comment | added | Wynn | @JeromyAnglim Thanks for your comments. This is related to visual sampling of an information processing task. Each button press is a request for visual sample of the world/system/monitor, and the subject is told to sample only when they have to (minimal information allowed to complete a task). There are multiple button presses in each trial, and it's related to the task going on, but not exactly 'triggered'. So here I am trying to show that people aren't just taking a visual sample at a regular pace, regardless of what is going on in the world. | |
| Jul 17, 2012 at 10:17 | comment | added | Felix S | Are the button presses contingent to some experimental events? in this case the question reminds me on an event related potential design from EEG studies. I would slice the behavioral streams into blocks with t=0 fixed on each triggering event and plot the distribution of reaction times after the event. But as Jeromy said: more details are needed. | |
| Jul 17, 2012 at 7:34 | history | tweeted | twitter.com/#!/StackStats/status/225131377677434880 | ||
| Jul 17, 2012 at 4:47 | answer | added | Michael R. Chernick | timeline score: 1 | |
| Jul 17, 2012 at 4:47 | history | edited | Jeromy Anglim | CC BY-SA 3.0 | tried to make title more specific; feel free to improve |
| Jul 17, 2012 at 4:45 | comment | added | Jeromy Anglim | Are participants only required to press a button following an event and only required to press the button once? If so, why not model reaction time and also count and get the proportion of the number of events that received no response and the number of events that received two or more responses? (in general, I think I need more information about the exact experimental protocol in order to answer this question) | |
| Jul 17, 2012 at 4:12 | history | asked | Wynn | CC BY-SA 3.0 |