end routine after number of keypresses psychopy builder

#END ROUTINE AFTER NUMBER OF KEYPRESSES PSYCHOPY BUILDER CODE#
#END ROUTINE AFTER NUMBER OF KEYPRESSES PSYCHOPY BUILDER TRIAL#

I added a print (corrAns) in there as well, and got this for again pressing ‘right’ 20 times. The correct ans (corrAns) should have switched from left to right during that time but it didn’t seem to.

rr = 0 # was the resp correct this trial? (0=no, 1=yes).

This works fine when the participant hits a key, but if they fail to hit a key and recogresp.keys is empty, psychopy breaks out and says that NoneType is not interable.

# Initiate containers for storing responses On, at 07:03. wrote: > I was testing this out and ran into a situation that I didn't anticipate.

could choose not to do that and start/stop manually instead by.

Normally we'll start polling the Keyboard at all times but you.

Its keys attribute is defined when a keyboard is created as simply an empty list: psychopy/psychopy/blob/d28d33d1b4f443690e2005008232809942c3d14c/psychopy/hardware/keyboard.py#L138 The keyboard API is brand-new, and is replacing the old PsychoPy event module (and I’m still getting used to it myself). A list of keys entered perhaps, but from what time frame or from what part of the program? What does resp.keys() return? This method isn’t listed in the PsychoPy API to my knowledge.

#END ROUTINE AFTER NUMBER OF KEYPRESSES PSYCHOPY BUILDER TRIAL#

Now you might end up with a situation where a person never pushes the correct key, so for completeness, you could build in some logic to end the trial after some number of attempts, e.g: if resp.keys = your_condition_file_column_name:Įlif len(resp.keys) = 5: # give up after 5 attempts.ĬontinueRoutine = False # don't need to override rr in this case something like: if resp.keys = your_condition_file_column_name:īut if this wasn’t the first response, then the value of rr that will be stored in the data will be False, so you might want to override that just in case: if resp.keys = your_condition_file_column_name: I can’t remember which way this list grows: you’ll either need to use an index of -1 (Python shorthand for “the last element of the list”, or, less likely, item 0 (the first item in the list).Į.g. We can do this by indexing the list of stored keypresses to get a specific value.

#END ROUTINE AFTER NUMBER OF KEYPRESSES PSYCHOPY BUILDER CODE#

So I think you might need to alter your code snippet to explicitly check one element of the list of responses vs the variable containing the correct response, rather than checking the rr value that Builder creates for you.

number of frames (more precise) and can be scaled up or down to allow veYou can specify the “Expected duration” within the component - that will mean that this component still appears on your routine timeline.I think the issue here is due to storing multiple responses: Builder’s built-in check to see if a response is correct will fail after the first keypress, because it will be comparing a single specified response (coming from a column in your conditions file) with a list of multiple collected responses, which will necessarily be unequal. If you choose to present your stimuli based on another timing unit, e.g. Each has its own line in the Routine view that shows when the component starts and finishes in time, and these can overlap.įor now the time axis of the Routines panel is fixed, representing seconds (one line is one second). Any number of components can be added to a Routine. These components determine the occurrence of a stimulus, or the recording of a response. Within a Routine there are a number of components.

The display size of items within a routine can be adjusted (see the View menu). To create a new Routine, you can either select “Insert Routine” from within your flow panel or use the Experiment menu. Multiple Routines can then be combined in the Flow, which controls the order in which these occur and the way in which they repeat. A Routine might specify the timing of events within a trial or the presentation of instructions or feedback. An experiment consists of one or more Routines.

End routine after number of keypresses psychopy builder