laservilla.blogg.se - Psychopy demos

PSYCHOPY DEMOS HOW TO
PSYCHOPY DEMOS SERIAL
PSYCHOPY DEMOS PATCH
PSYCHOPY DEMOS CODE
PSYCHOPY DEMOS TRIAL

In system settings>privacy>accessibility allow PsychPy to do whatever. Could I have something running that interferes with the ioHUB. I get the exact same error with PsychoPy2 and PsychoP圓. I thought something might be wrong with my computer so I reinstalled the OS 3 times and ran every diagnostic I could think of. RuntimeError: Error starting ioHub server First, I am sure I am in the correct folder.įile “/Users/williamprinzmet/Applications/PsychoPy2.app/Contents/Resources/lib/python2.7/psychopy/iohub/client/ init.py”, line 290, in init With the Tobii eyetracker example this is the slimmest thing I could do. Jon once suggested that I use the shell to find out what is being loaded. The yaml file is in the same folder as the program. I changed the screen dimensions in the yaml file to fit my screen, and other things.

PSYCHOPY DEMOS CODE

I tried all kinds of variations with the tobii and the code in Chapter 19 of the PsychoPy book (excellent, BTW). Io = client.ioHubConnection(io_config) It does write an empty. It only involves a keyboard so it should work. I downloaded PsychoPy2, and just tried the demo Stroop (ioHUB keyboard). An important thing to note is that you must define the correct answer.I stated trying to make a Tobii eye tracker work with PsychoP圓, but that was way beyond me. The Staircase methods are different to those used for a loop which uses predetermined values. The contrast of the stimulus is determined using an adaptive staircase.The result in this case is that the grating drifts at a rate of 2Hz.

PSYCHOPY DEMOS PATCH

The phase of a Patch Component ranges 0-1 (and wraps to that range if beyond it). There is also a globalClock that can be used in the same way. Every Routine has a clock associated with it that gets reset at the beginning of the iteration through the Routine. The phase of the stimulus is set to change every frame and its value is determined by the value of trialClock.getTime()*2.This information is then entered into the stimulus parameters using ‘$expInfo’ The opening dialog box requires the participant to enter the orientation of the stimulus, the required fields here are determined by ‘Experiment Info’ in ‘Preferences’ which is a python dictionary.find the contrast where the observer can just see the stimulus. This is a mini psychophysics experiment, designed to find the contrast detection threshold of a gabor i.e. Journal of Experimental Psychology 18: 643-662.

PSYCHOPY DEMOS SERIAL

“Studies of interference in serial verbal reactions”.

PSYCHOPY DEMOS HOW TO

How to present instructions: just have a long-lasting TextStim and then force end of the Routine when a key is pressed (but don’t bother storing the key press).

They have been set to change every repeat (don’t forget that step!) The text and rgb values of the word Component are based on thisTrial, which represents a single iteration of the trials loop.

How to change a stimulus parameter on each repetition of the loop.

PSYCHOPY DEMOS TRIAL

How to record key presses and reaction times (using the resp Component in trial Routine).

Reaction times for the congruent trials (where letter colour matches the written word) are faster than for the incongruent trials. Subjects have to report the colour of the letters for each word, but find it harder to do so when the letters are spelling out a different (incongruous) colour. The experiment presents a series of coloured words written in coloured ‘inks’. This runs a digital demonstration of the Stroop effect. The loop also controls variables that change between repetitions, such as stimulus attributes. This takes the form of a standard flowchart allowing a sequence of routines to occur one after another, and for loops to be inserted around one or more of the Routines. The way in which these Routines are combined and/or repeated is controlled by the Flow panel. These are portrayed in a simple track-based view, similar to that of video-editing software, which allows stimuli to come on go off repeatedly and to overlap with each other. The Builder view comprises two main panels for viewing the experiment’s Routines (upper left) and another for viewing the Flow (lower part of the window).Īn experiment can have any number of Routines, describing the timing of stimuli, instructions and responses. The Builder view of the PsychoPy application is designed to allow the rapid development of a wide range of experiments for experimental psychology and cognitive neuroscience experiments.