[solved] I am not able to keyboard to work with Odd Ball Task

ajspoerner · April 2013

Lotje,

I was able to put together an auditory Odd ball task this weekend. Everything works! The odd ball task never occurs two times in a row. I do want to add the key board and have the person hit the space key every time they hear the target sound. I have tried to follow the tutorial creating a Gaze Cuing Experiment and have placed the key board in my experiment but when I check the excel worksheet it does not record the keystroke of the space bar.

Is there something I need to type in the script you provided for the Key board to record the hitting of the space key when a person hears the target sound?

I am sorry to bother you with this and I am hoping on can figure out the connection with Emotiv and setting the triggers on my own.

Kind Regards,

AJ

Edwin · April 2013

Hi AJ,

Did you insert a logger item after your keyboard_response item?

Or did you add self.log(myvar) to the code in your inline_script item? (if you're using an inline_script)

Cheers!
Edwin

ajspoerner · April 2013

Before I got your response I found your keyboard functions page and I made a _inline_script and placed it under trial sequence:

from openexp.keyboard import keyboard
my_keyboard = keyboard(exp, keylist=['space'], timeout=400)
start_time = self.time()
key, end_time = my_keyboard.get_key()
self.experiment.set('response', key)
self.experiment.set('response_time_keyboard_response', end_time - start_time).

The problem is that on the excel worksheet the correct response and response time will be recorded but always for the trial below the Target:

26  None    400 non_target
27  None    400 non_target
28  None    400 non_target
29  None    400 non_target
30  None    400 target
31  space   31  non_target
32  None    400 target
33  space   130 non_target
34  None    400 non_target
35  None    400 non_target
36  None    400 non_target
37  None    400 non_target
38  None    400 non_target
39  None    400 non_target
40  None    400 non_target
41  None    400 non_target
42  None    400 non_target
43  None    400 target
44  space   39  non_target
45  None    400 non_target
46  None    400 non_target
47  None    400 non_target
48  None    400 non_target

What am I doing wrong? is this sometime type of timing problem or did I just put the script in the wrong place. I am it is something simple I just can not figure it out.

Best,

AJ

Edwin · April 2013

From the looks of it, I'd say that your logger seems to be placed before your inline script, meaning that it will log the values of the previous trial. To verify this, could you perhaps post a screenshot of your overview (or of the relevant part only)?

ajspoerner · April 2013

I am sorry, I am working on a lap tap and I can not find the print screen button. Are you asking the information under trial sequence. If that is what you are requesting the order is determine_ trial_ type (script)

# Determine the trial type of the current trial 
# by 'popping' (i.e. taking without replacement) 
# one item from the previously-defined trial list.

# We do this by using the built-in Python function pop():
trial_type = trial_list.pop()

# Next, we should set the variable 'trial_type' to
# make it available in the GUI (notably, the Run-if 
# boxes in the trial_sequence item).

# We do this by using the built-in OpenSesame experiment 
# function exp.set():
exp.set("trial_type", trial_type)

~~

Then the script I placed in my last email: determine_keyboard_response
non-target sampler
target sampler
sketch pad
logger 

If this may help you, block sequence has the following script:

~~~ .python
# Import the built-in Python module random:
import random

# Define counters:
nTarget = 50
nNonTarget = 500


# Create a list containing for example 50 targets and 
# 500 non target:
trial_list = ["target"]*nTarget+ ["non_target"]*nNonTarget

# Shuffle the list by using the random.shuffle() function:
random.shuffle(trial_list)

# Check for two targets in a row:

# Give the Boolean keepRunning a starting value:
keepRunning = True

# We walk through the list until our criteria are met:
while keepRunning:

    # Set keepRunning to False
    keepRunning = False

    # For every item in the list, check whether this item AND the next
    # one are 'target' (note that we skip the very last one because
    # it has no following item):
    for i in range(len(trial_list)-1):

        # If the current item and the next one are 'target':
        if trial_list[i] == trial_list[i+1] == "target":

            # Set keepRunning to True, meaning the list doesn't meet our criteria yet:
            keepRunning = True

            # Swap the content of the current item and the previous one:
            trial_list[i], trial_list[i-1] = trial_list[i-1], trial_list[i]

            # And break from the current loop to walk through the list again:
            break

# Make the trial_list global such that it becomes available in future inline_sript
# items as well:
global trial_list

Thank you so much for being patient with me and helping me figure this out
Kind Regards,
AJ

ajspoerner · April 2013

Oh Man,
that last comment was a mess.
Trial Sequence:
determine_trial_order
determine_keyboard_response
non_target
target
sketchpad
logger

Script for determine_trial:


  # Determine the trial type of the current trial 
# by 'popping' (i.e. taking without replacement) 
# one item from the previously-defined trial list.

# We do this by using the built-in Python function pop():
trial_type = trial_list.pop()

# Next, we should set the variable 'trial_type' to
# make it available in the GUI (notably, the Run-if 
# boxes in the trial_sequence item).

# We do this by using the built-in OpenSesame experiment 
# function exp.set():
exp.set("trial_type", trial_type)

Script for block sequence determine_trial_order

 # Import the built-in Python module random:
import random

# Define counters:
nTarget = 50
nNonTarget = 500


# Create a list containing for example 50 targets and 
# 500 non target:
trial_list = ["target"]*nTarget+ ["non_target"]*nNonTarget

# Shuffle the list by using the random.shuffle() function:
random.shuffle(trial_list)

# Check for two targets in a row:

# Give the Boolean keepRunning a starting value:
keepRunning = True

# We walk through the list until our criteria are met:
while keepRunning:

    # Set keepRunning to False
    keepRunning = False

    # For every item in the list, check whether this item AND the next
    # one are 'target' (note that we skip the very last one because
    # it has no following item):
    for i in range(len(trial_list)-1):

        # If the current item and the next one are 'target':
        if trial_list[i] == trial_list[i+1] == "target":

            # Set keepRunning to True, meaning the list doesn't meet our criteria yet:
            keepRunning = True

            # Swap the content of the current item and the previous one:
            trial_list[i], trial_list[i-1] = trial_list[i-1], trial_list[i]

            # And break from the current loop to walk through the list again:
            break

# Make the trial_list global such that it becomes available in future inline_sript
# items as well:
global trial_list

Sorry again for the comment above. I hope this helps you figure things out.

Thank You

AJ

ajspoerner · April 2013

Let me try this one more time.

Trial sequence
determine_trial_ type
determine keyboard response
non_target: player
Target: player
sketch pad: fixation dot
Logger

I will put script for determine_ trial_ type and determine trail order in the next comment so I do not mess up again

ajspoerner · April 2013

determine_ trial_ type:

# Determine the trial type of the current trial 
# by 'popping' (i.e. taking without replacement) 
# one item from the previously-defined trial list.

# We do this by using the built-in Python function pop():
trial_type = trial_list.pop()

# Next, we should set the variable 'trial_type' to
# make it available in the GUI (notably, the Run-if 
# boxes in the trial_sequence item).

# We do this by using the built-in OpenSesame experiment 
# function exp.set():
exp.set("trial_type", trial_type)

determine_ trial_ order

 Import the built-in Python module random:
import random

# Define counters:
nTarget = 50
nNonTarget = 500


# Create a list containing for example 50 targets and 
# 500 non target:
trial_list = ["target"]*nTarget+ ["non_target"]*nNonTarget

# Shuffle the list by using the random.shuffle() function:
random.shuffle(trial_list)

# Check for two targets in a row:

# Give the Boolean keepRunning a starting value:
keepRunning = True

# We walk through the list until our criteria are met:
while keepRunning:

    # Set keepRunning to False
    keepRunning = False

    # For every item in the list, check whether this item AND the next
    # one are 'target' (note that we skip the very last one because
    # it has no following item):
    for i in range(len(trial_list)-1):

        # If the current item and the next one are 'target':
        if trial_list[i] == trial_list[i+1] == "target":

            # Set keepRunning to True, meaning the list doesn't meet our criteria yet:
            keepRunning = True

            # Swap the content of the current item and the previous one:
            trial_list[i], trial_list[i-1] = trial_list[i-1], trial_list[i]

            # And break from the current loop to walk through the list again:
            break

# Make the trial_list global such that it becomes available in future inline_sript
# items as well:
global trial_list

ajspoerner · April 2013

Thank you so much! just moving the script and now everything works. Again I am so sorry for making such a mess of this post. Thank you also for being so patient with me

Edwin · April 2013

Haha, I think it might be useful to know that you can post text in it's original layout by using '< pre >' and '< /pre >' tags (without the spaces, mind you!), like so:

This is some text.
    This is some more text.
==================

Good to know that you've fixed it! If I understand correctly, you did indeed misplace the script a bit?

Good luck with further testing!

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[solved] I am not able to keyboard to work with Odd Ball Task

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[solved] I am not able to keyboard to work with Odd Ball Task

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