def present_temporal_stream(self, temporal_stream):
duration_cd = CountDown(ITEM_DURATION, start=False)
mask_cd = CountDown(MASK_DURATION, start=False)
response_window = CountDown(2, start=False)
last_item = True if len(temporal_stream) == 1 else False
item = temporal_stream.pop()
if item[1]:
self.target_onset = self.target_sw.elapsed()
duration_cd.start()
while duration_cd.counting():
self.blit_img(item[0], reg=5, loc=P.screen_c)
mask_cd.start()
while mask_cd.counting():
self.blit_img(self.mask, reg=5, loc=P.screen_c)
if last_item:
clear()
response_window.start()
while response_window.counting():
fill()
flip()
def feedback(self, response):
if self.winning_bandit == HIGH:
winning_bandit_loc = self.high_value_location
else:
winning_bandit_loc = self.low_value_location
if response == winning_bandit_loc:
points = self.bandit_payout(value=self.winning_bandit)
msg = message("You won {0} points!".format(points),
"score up",
blit_txt=False)
else:
points = self.penalty # -5
msg = message("You lost 5 points!", "score down", blit_txt=False)
self.total_score += points
feedback = [points, msg]
feedback_exposure = CountDown(self.feedback_exposure_period)
while feedback_exposure.counting():
ui_request()
fill()
blit(feedback[1], location=P.screen_c, registration=5)
flip()
return feedback[0]
def trial(self):
# Clear screen and wait for target onset
fill()
flip()
while self.evm.before('target_on'):
ui_request()
# Start timer and collect response
self.rc.collect()
response = self.rc.keypress_listener.response()
# Stop timer and show for 1sec after response is made
elapsed_msg = message(str(int(response.rt)).zfill(4),
style='PVT',
blit_txt=False)
feedback_timer = CountDown(1)
while feedback_timer.counting():
fill()
blit(elapsed_msg, 5, P.screen_c)
flip()
# Log trial data to database
return {
"block_num": P.block_number,
"trial_num": P.trial_number,
"isi": self.interstim_interval,
"rt": response.rt
}
def feedback(self, response):
correct_response = True if response == self.tilt_line_location else False
# Every 5 trials of a particular payoff, ask anticipated earnings
if self.potential_payoff == HIGH:
self.high_value_trial_count += 1
if self.high_value_trial_count in [5, 10, 15]:
self.query_learning(HIGH)
else:
self.low_value_trial_count += 1
if self.low_value_trial_count in [5, 10, 15]:
self.query_learning(LOW)
# Determine payout for trial
if correct_response & (self.winning_trial == YES):
points = self.payout()
msg = message("You won {0} points!".format(points),
'myText',
blit_txt=False)
else:
points = self.penalty
msg = message("You lost 5 points!", 'myText', blit_txt=False)
# Keep tally of score
self.total_score += points
feedback = [points, msg]
# Present score
feedback_exposure = CountDown(self.feedback_exposure_period)
fill()
blit(feedback[1], location=P.screen_c, registration=5)
flip()
while feedback_exposure.counting():
ui_request()
return feedback[0]
def block(self):
# Show block message at start of every block
header = "Block {0} of {1}".format(P.block_number,
P.blocks_per_experiment)
if P.practicing:
header = "This is a practice block. ({0})".format(header)
practice_msg = "During this block you will be given feedback for your responses."
msg = message(header + "\n" + practice_msg,
align="center",
blit_txt=False)
else:
msg = message(header, blit_txt=False)
message_interval = CountDown(1)
while message_interval.counting():
ui_request() # Allow quitting during loop
fill()
blit(msg, 8, (P.screen_c[0], P.screen_y * 0.4))
flip()
flush()
start_msg = message("Press any key to start.", blit_txt=False)
fill()
blit(msg, 8, (P.screen_c[0], P.screen_y * 0.4))
blit(start_msg, 5, [P.screen_c[0], P.screen_y * 0.6])
flip()
any_key()
def present_feedback(self):
msg = "Incorrect!"
self.blit_msg(msg, 'left')
feedback_cd = CountDown(0.5)
while feedback_cd.counting():
ui_request()
def present_stream(self): duration_cd = CountDown(self.item_duration) isi_cd = CountDown(self.isi) item = self.rsvp_stream.pop() fill() blit(item[0], registration=5, location=P.screen_c) flip() duration_cd.reset() while duration_cd.counting(): pass fill() if item[1]: self.temporal_presentation_times.append([self.evm.trial_time_ms, item[2]]) isi_cd.reset() while isi_cd.counting(): pass
def present_feedback(self):
fill()
message("Incorrect!",
location=P.screen_c,
registration=5,
blit_txt=True)
flip()
feedback_period_cd = CountDown(0.5) # seconds
while feedback_period_cd.counting():
ui_request()
def present_stream(self):
duration_cd = CountDown(self.item_duration, start=False)
isi_cd = CountDown(self.isi, start=False)
item = self.rsvp_stream.pop()
fill()
blit(item[0], registration=5, location=P.screen_c)
flip()
duration_cd.start()
while duration_cd.counting():
pass
fill()
if item[1]:
self.target_onset = self.target_sw.elapsed()
isi_cd.start()
while isi_cd.counting():
pass
def get_ambient_level(self, period=1):
"""Determines the average ambient noise level from the input stream over a given period.
Gives a 3-second countdown before starting to help the user ensure they are quiet.
Args:
period (numeric, optional): The number of seconds to record input for. Defaults to one
second.
Returns:
int: The average of the peaks of all samples recorded during the period.
"""
warn_msg = (
"Please remain quiet while the ambient noise level is sampled. "
"Sampling will begin in {0} second{1}.")
peaks = []
wait_period = CountDown(3)
while wait_period.counting():
ui_request()
fill()
remaining = int(math.ceil(wait_period.remaining()))
s = "" if remaining == 1 else "s" # to avoid "1 seconds"
message(warn_msg.format(remaining, s),
location=P.screen_c,
registration=5)
flip()
self.stream.start()
fill()
flip()
sample_period = CountDown(period)
while sample_period.counting():
ui_request()
peaks.append(self.stream.sample().peak)
self.stream.stop()
return sum(peaks) / float(len(peaks))
def get_peak_during(self, period, msg=None):
"""Determines the peak loudness value recorded over a given period. Displays a visual
callback that shows the current input volume and the loudest peak encounteredduring the
interval so far.
Args:
period (numeric): the number of seconds to record input for.
msg (:obj:`~klibs.KLGraphics.KLNumpySurface.NumpySurface`, optional): a rendered message
to display in the top-right corner of the screen during the sampling loop.
Returns:
int: the loudest peak of all samples recorded during the period.
"""
local_peak = 0
last_sample = 0
if msg:
msg = message(msg, blit_txt=False)
flush()
self.stream.start()
sample_period = CountDown(period + 0.05)
while sample_period.counting():
ui_request()
sample = self.stream.sample().peak
if sample_period.elapsed() < 0.05:
# Sometimes 1st or 2nd peaks are extremely high for no reason, so ignore first 50ms
continue
if sample > local_peak:
local_peak = sample
sample_avg = (sample + last_sample) / 2
peak_circle = peak(5, int(
(local_peak / 32767.0) * P.screen_y * 0.8))
sample_circle = peak(
5, int((sample_avg / 32767.0) * P.screen_y * 0.8))
last_sample = sample
fill()
blit(Ellipse(peak_circle, fill=[255, 145, 0]),
location=P.screen_c,
registration=5)
blit(Ellipse(sample_circle, fill=[84, 60, 182]),
location=P.screen_c,
registration=5)
if msg:
blit(msg, location=[25, 25], registration=7)
flip()
self.stream.stop()
return local_peak
def block(self):
# Determine probe bias for block and generate list of probe locs accordingly
if P.block_number > 3:
self.probe_bias = "left"
nonbiased_loc = "right"
else:
self.probe_bias = "right"
nonbiased_loc = "left"
loc_list = [self.probe_bias]*4 + [nonbiased_loc]
self.probe_locs = loc_list * int(P.trials_per_block/float(len(loc_list))+1)
random.shuffle(self.probe_locs)
# At the start of each block, display a start message (block progress if experimental block,
# practice message if practice block). After 3000ms, keypress will start first trial.
probe_msg = (
"During this block, the colour target will appear more often on the "
"{0} and less often on the {1}.".format(self.probe_bias, nonbiased_loc)
)
header = "Block {0} of {1}".format(P.block_number, P.blocks_per_experiment)
if P.practicing:
header = "This is a practice block. ({0})".format(header)
if P.block_number > 1:
msg = message(header+"\n"+probe_msg, align="center", blit_txt=False)
else:
msg = message(header, blit_txt=False)
message_interval = CountDown(1)
while message_interval.counting():
ui_request() # Allow quitting during loop
fill()
blit(msg, 8, (P.screen_c[0], P.screen_y*0.4))
flip()
flush()
fill()
blit(msg, 8, (P.screen_c[0], P.screen_y*0.4))
message("Press any key to start.", registration=5, location=[P.screen_c[0], P.screen_y*0.6])
flip()
any_key()
# When running participants, send halfway point and last-block notifications to researcher via Slack
if not P.development_mode:
if P.block_number == 3: # If participant is halfway done
slack_message("Halfway done ({0}/{1})".format(P.block_number, P.blocks_per_experiment))
def present_stream(self):
# Each stream item presented for a pre-specified duration
cd = CountDown(self.item_duration)
sw = Stopwatch()
for item in self.rsvp_stream:
cd.reset()
sw.reset()
fill()
blit(item, registration=5, location=P.screen_c)
flip()
#print(cd.elapsed)
while cd.counting():
ui_request()
print(sw.elapsed())
sw.reset()
def block(self):
# Generate font sizes to use for numbers during the block
self.num_sizes = []
while len(self.num_sizes) <= P.trials_per_block:
self.num_sizes = self.num_sizes + self.sizes
random.shuffle(self.num_sizes)
self.num_sizes = self.num_sizes[0:P.trials_per_block]
# Generate block message
header = "" #"Block {0} of {1}".format(P.block_number, P.blocks_per_experiment)
instructions = (
"Please press the space key quickly when a digit other than {0} \nappears on screen, "
"and withhold your response when the digit is {0}.".format(
P.target))
if P.practicing:
header = "This is a practice block."
instructions = instructions + "\nYou will be given feedback on your accuracy."
msg = message(header + "\n\n" + instructions,
'normal',
align="center",
blit_txt=False)
start_msg = message("Press the [space] key to start.",
'normal',
blit_txt=False)
# Show block message, and wait for input before staring block
if P.block_number in [1, self.first_nonpractice]:
message_interval = CountDown(2)
while message_interval.counting():
ui_request() # Allow quitting during loop
fill()
blit(msg, 8, (P.screen_c[0], int(P.screen_y * 0.15)))
flip()
while True:
if key_pressed(' '):
break
fill()
blit(msg, 8, (P.screen_c[0], int(P.screen_y * 0.15)))
blit(start_msg, 5, (P.screen_c[0], int(P.screen_y * 0.75)))
flip()
def trial(self):
"""
trial_factors: 1 = mask_type, 2 = target_level, 3 = mask_size, 4 = target_shape]
"""
if P.development_mode:
print(self.mask_type, self.target_level, self.mask_size, self.target_shape)
self.rc.collect()
resp = self.rc.keypress_listener.response()
if P.development_mode:
print(resp)
# handle timeouts
if resp.rt == TIMEOUT:
feedback = CountDown(1)
msg = message("Too slow!", "alert", blit_txt=False)
while feedback.counting():
ui_request()
fill()
blit(msg, 5, P.screen_c)
flip()
clear()
# create readable data as fixation is currrently in (x,y) coordinates
if self.fixation == self.fixation_top:
initial_fixation = "TOP"
elif self.fixation == self.fixation_central:
initial_fixation = "CENTRAL"
else:
initial_fixation = "BOTTOM"
return {"practicing": P.practicing,
"response": resp.value,
"rt": float(resp.rt),
"mask_type": self.mask_type,
"mask_size": self.mask_size,
"local": self.target_shape if self.target_level == LOCAL else "D",
"global": self.target_shape if self.target_level == GLOBAL else "D",
"d_orientation": self.orientation,
"trial_num": P.trial_number,
"block_num": P.block_number,
"initial_fixation": initial_fixation}
def feedback(self, response):
# Keep count of bandit choices
if response == self.high_value_location:
self.bandit_selected = HIGH
self.times_selected_high = self.times_selected_high + 1
# Occasionally probe participant learning
if self.times_selected_high in [5, 10, 15]:
self.query_learning(HIGH)
else:
self.bandit_selected = LOW
self.time_selected_low = self.time_selected_low + 1
if self.time_selected_low in [5, 10, 15]:
self.query_learning(LOW)
# Determine payout
if self.winning_trial == YES:
points = self.bandit_payout(value=self.bandit_selected)
msg = message("You won {0} points!".format(points),
"payout",
blit_txt=False)
else:
points = self.penalty # -5
msg = message("You lost 5 points!", "payout", blit_txt=False)
# Running point total
self.total_score += points
feedback = [points, msg]
# Present payout
feedback_exposure = CountDown(self.feedback_exposure_period)
while feedback_exposure.counting():
ui_request()
fill()
blit(feedback[1], location=P.screen_c, registration=5)
flip()
return feedback[0]
def warm_up(self):
warmup_timer = CountDown(600, start=True)
self.first_signal_played = False
self.second_signal_played = False
self.third_signal_played = False
self.fourth_signal_played = False
while warmup_timer.counting():
if key_pressed(sdl2.SDLK_DELETE):
break
t = warmup_timer.elapsed()
if t < 60:
tool = 'pencil'
elif 60 <= t < 120:
if not self.first_signal_played:
self.warning_signal.play()
self.first_signal_played = True
tool = 'charcoal'
elif 120 <= t < 180:
if not self.second_signal_played:
self.warning_signal.play()
self.second_signal_played = True
tool = 'smudger'
elif 180 <= t < 240:
if not self.third_signal_played:
self.warning_signal.play()
self.third_signal_played = True
tool = 'eraser'
else:
if not self.fourth_signal_played:
self.warning_signal.play()
self.fourth_signal_played = True
tool = 'any'
fill()
blit(self.images['warmup.png'], 5, P.screen_c)
blit(self.warmup_txt[tool], 1, (30, P.screen_y-30))
flip()
def __validate(self):
instruction = (
"Okay, threshold set! "
"To ensure its validity, please provide one (and only one) more response."
)
fill()
message(instruction, location=P.screen_c, registration=5)
flip()
self.stream.start()
validate_counter = CountDown(5)
while validate_counter.counting():
ui_request()
if self.stream.sample().peak >= self.threshold:
validate_counter.finish()
self.threshold_valid = True
self.stream.stop()
if self.threshold_valid:
validation_msg = "Great, validation was successful! Press any key to continue."
else:
validation_msg = (
"Validation wasn't successful. "
"Type C to re-calibrate or V to try validation again.")
fill()
message(validation_msg, location=P.screen_c, registration=5)
flip()
selection_made = False
while not selection_made:
q = pump(True)
if self.threshold_valid:
if key_pressed(queue=q):
return
else:
if key_pressed(SDLK_c, queue=q):
self.calibrate()
elif key_pressed(SDLK_v, queue=q):
self.__validate()
def instructions(self):
p1 = (
"During this task, you will presented with a sequence of numbers in the middle of "
"the screen.\n\nPress any key to see an example.")
p2 = (
"Your task will be to press the [space] key as quickly as possible whenever a "
"number other than {0} appears, and to withhold your response whenever the number "
"is {0}.\n\nPress any key to continue.".format(P.target))
p3 = (
"Occasionally, the task will be interrupted by screens asking you about your "
"focus just prior.\nWhen this happens, please select the most accurate "
"response using the mouse cursor.\n\nPress any key to see an example."
)
p4 = (
"After responding, you will be asked how much effort you "
"were putting into staying focused on the task before the interruption.\n\n"
"When this happens, please answer using the scale from 0% to 100% that will appear "
"on screen. Your responses will be anonymous so please answer honestly.\n\n"
"Press any key to see an example.")
msg1 = message(p1, 'normal', blit_txt=False, align='center')
msg2 = message(p2,
'normal',
blit_txt=False,
align='center',
wrap_width=int(P.screen_x * 0.8))
msg3 = message(p3,
'normal',
blit_txt=False,
align='center',
wrap_width=int(P.screen_x * 0.8))
msg4 = message(p4,
'normal',
blit_txt=False,
align='center',
wrap_width=int(P.screen_x * 0.8))
# First page of instructions
flush()
fill()
blit(msg1, 5, P.screen_c)
flip()
any_key(allow_mouse_click=False)
# Example stimuli
numlist = [1, 2, 3, 4, 5, 6, 7, 8, 9]
random.shuffle(numlist)
for n in numlist[1:5]:
trialtime = CountDown(1.125)
numsize = random.choice(self.sizes)
while trialtime.counting():
ui_request()
fill()
mask_on = trialtime.elapsed() > 0.25
if mask_on:
blit(self.mask_x, 5, P.screen_c)
blit(self.mask_ring, 5, P.screen_c)
else:
blit(self.digits[n][numsize], 5, P.screen_c)
flip()
# Task explanation/illustration
flush()
fill()
blit(msg2, 5, P.screen_c)
flip()
any_key(allow_mouse_click=False)
# Probe explanation + example probe
fill()
blit(msg3, 5, P.screen_c)
flip()
any_key(allow_mouse_click=False)
self.probe.collect()
# Slider explanation + example slider
fill()
blit(msg4, 5, P.screen_c)
flip()
any_key(allow_mouse_click=False)
self.get_effort()
def trial(self):
fill()
blit(self.digits[self.number][self.num_size], 5, P.screen_c)
flip()
self.rc.collect()
response = self.rc.keypress_listener.response()
if response.rt == klibs.TIMEOUT:
resp, rt = ['nogo', 'NA']
else:
resp, rt = response
correct_resp = 'nogo' if self.number == P.target else 'go'
accuracy = resp == correct_resp
while self.evm.before('trial_end'):
ui_request()
fill()
blit(self.mask_x, 5, P.screen_c)
blit(self.mask_ring, 5, P.screen_c)
flip()
if P.practicing:
if accuracy == False:
feedback = "Incorrect! "
if correct_resp == 'nogo':
feedback += "Please withhold responses to the digit {0}.".format(
P.target)
else:
feedback += "Please respond quickly to digits other than {0}.".format(
P.target)
else:
feedback = "Correct response!"
feedback_msg = message(feedback, 'normal', blit_txt=False)
feedback_timer = CountDown(1.5)
while feedback_timer.counting():
ui_request()
fill()
blit(feedback_msg, 5, P.screen_c)
flip()
# If probe trial, present MW probe and wait for response + keypress before ending trial
if self.probe_trial:
probe_resp, probe_rt = self.probe.collect()
eff_level, eff_rt = self.get_effort()
probe_rt = probe_rt * 1000 # convert seconds to ms
eff_rt = eff_rt * 1000 # convert seconds to ms
eff_level = eff_level * 100 # scale range to 0% - 100%
resume_msg = message("Press the [space] key to resume the task.",
'title',
blit_txt=False)
while True:
if key_pressed(' '):
break
fill()
blit(resume_msg, 5, P.screen_c)
flip()
else:
probe_resp, probe_rt, eff_level, eff_rt = ('NA', 'NA', 'NA', 'NA')
return {
"practicing": P.practicing,
"block_num": P.block_number,
"trial_num": P.trial_number,
"digit": self.number,
"digit_size": self.num_size,
"target_digit": P.target,
"response": resp,
"rt": rt,
"accuracy": accuracy,
"probe_resp": probe_resp,
"probe_rt": probe_rt,
"effort_level": eff_level,
"effort_rt": eff_rt
}
def block(self):
halfway_block = (P.blocks_per_experiment / 2) + 1
if P.run_practice_blocks and P.session_number == 1:
halfway_block += 3
if P.run_practice_blocks and P.session_number == 1 and P.block_number <= 3:
txt = "This is a practice block ({0} of 3)\n\n".format(
P.block_number)
if P.block_number == 1:
txt += (
"During this task, arrows will appear either above or below the '+' symbol.\n"
"Your job will be to indicate the direction of the middle arrow as quickly\n"
"and accurately as possible using the keyboard.\n\n"
"( c = left, m = right )")
elif P.block_number == 2:
txt += (
"On some trials, the central arrow will be displaced upwards or downwards "
"by a large amount.\n"
"When this occurs, please press the space bar instead of the 'c' or 'm' keys."
)
self.trial_type = 'EV'
self.ev_offset = 'below'
demo_arrows = self.generate_arrows()
else:
txt += (
"On some trials, a large red countdown timer will appear instead of the arrows."
"\nWhen this occurs, please press the space bar as quickly as you can."
)
instructions = message(txt, align='center', blit_txt=False)
continue_msg = message('Press any key to begin.',
align='center',
blit_txt=False)
instruction_time = CountDown(3)
while True:
keydown = key_pressed()
fill()
blit(instructions, 8, (P.screen_c[0], int(P.screen_y * 0.1)))
if P.block_number == 2:
blit(self.fixation, 5, P.screen_c)
for shape, loc in demo_arrows:
blit(shape, 5, loc)
elif P.block_number == 3:
elapsed = min(
[int(instruction_time.elapsed() * 1000), 367])
demo_counter = message(str(elapsed).zfill(4),
"PVT",
blit_txt=False)
blit(demo_counter, 5, P.screen_c)
if P.development_mode or instruction_time.counting() == False:
blit(continue_msg, 2,
(P.screen_c[0], int(P.screen_y * 0.9)))
if keydown == True:
break
flip()
elif P.run_practice_blocks and P.session_number == 1 and P.block_number == 4:
self.block_msg(
"Practice complete! Press any key to begin the task.")
elif P.block_number == 1:
self.block_msg("Press any key to begin the task.")
elif P.block_number == halfway_block:
self.block_msg(
"Phew, you're halfway done! Press any key to continue.")
def instructions(self):
p1 = (
"During this task, you will presented with a sequence of letters in the middle of "
"the screen.\n\nPress any key to see an example.")
p2a = (
"For some blocks, your task will be to indicate whether each letter matches "
"the letter just before it:")
p2b = (
"For others, your task will be to indicate whether each letter matches "
"the letter two before it:")
p2c = "(matches for each block type are highlighted)"
p3 = (
"Occasionally, the task will be interrupted by screens asking you about your "
"focus just prior.\nWhen this happens, please select the most accurate "
"response using the mouse cursor.\n\nPress any key to see an example."
)
msg1 = message(p1, 'normal', blit_txt=False, align='center')
msg2a = message(p2a,
'normal',
blit_txt=False,
wrap_width=int(P.screen_x * 0.8))
msg2b = message(p2b,
'normal',
blit_txt=False,
wrap_width=int(P.screen_x * 0.8))
msg2c = message(p2c, 'normal', blit_txt=False)
msg3 = message(p3,
'normal',
blit_txt=False,
align='center',
wrap_width=int(P.screen_x * 0.8))
# First page of instructions
flush()
fill()
blit(msg1, 5, P.screen_c)
flip()
any_key(allow_mouse_click=False)
# Example stimuli
for letter in (1, 2, 1):
trialtime = CountDown(2.5)
while trialtime.counting():
mask_on = trialtime.elapsed() > 0.5
stim = self.mask if mask_on else self.letters[
self.letter_set[letter]]
ui_request()
fill()
blit(self.accuracy_rect, 5, P.screen_c)
blit(self.accuracy_mask, 5, P.screen_c)
blit(stim, 5, P.screen_c)
flip()
# Task explanation/illustration
fill()
blit(msg2a, 8, (P.screen_c[0], int(P.screen_y * 0.15)))
blit(msg2b, 8, (P.screen_c[0], int(P.screen_y * 0.45)))
blit(msg2c, 2, (P.screen_c[0], int(P.screen_y * 0.8)))
self.draw_nback_illustration(int(P.screen_y * 0.3), target=5)
self.draw_nback_illustration(int(P.screen_y * 0.6), target=4)
flip()
any_key(allow_mouse_click=False)
# Probe explanation + example probe
fill()
blit(msg3, 5, P.screen_c)
flip()
any_key()
self.probe.collect()
def block(self):
# Initialize/reset list of previous letters presented
self.past_letters = []
# Determine nback difficulty for the block
even_block = P.block_number % 2 == 0
if self.first_nback == 1:
self.nback = 2 if even_block else 1
else:
self.nback = 1 if even_block else 2
# Determine positions of thought probes in trial sequence
# Probes are pseudo-randomly distributed throughout blocks, with one probe in every set of
# 30 trials. Probes cannot appear in the first 8 trials of a set, ensuring that probes are
# at minimum 20 seconds apart.
self.probe_trials = []
noprobe_span = [False] * P.noprobe_span
probe_span = [True] + [False] * P.probe_span
while len(self.probe_trials) < P.trials_per_block:
random.shuffle(probe_span)
self.probe_trials += noprobe_span + probe_span
# Generate block message
header = "Block {0} of {1}".format(P.block_number,
P.blocks_per_experiment)
nback_txts = [' ', 'just before it', 'two before it']
instructions = (
"During this block, please press the [m] key when a letter matches\nthe letter "
"{0}, and the [n] key when it does not.".format(
nback_txts[self.nback]))
if P.practicing:
header = "This is a practice block. ({0})".format(header)
instructions = instructions + "\nYou will be given feedback on your accuracy."
msg = message(header + "\n\n" + instructions,
'normal',
align="center",
blit_txt=False)
start_msg = message("Press the [n] key to start.",
'normal',
blit_txt=False)
# Show block message, and wait for input before staring block
message_interval = CountDown(2)
while message_interval.counting():
ui_request() # Allow quitting during loop
fill()
blit(msg, 8, (P.screen_c[0], int(P.screen_y * 0.15)))
self.draw_nback_illustration(P.screen_c[1],
target=5 if self.nback == 1 else 4)
flip()
while True:
if key_pressed('n'):
break
fill()
blit(msg, 8, (P.screen_c[0], int(P.screen_y * 0.15)))
self.draw_nback_illustration(P.screen_c[1],
target=5 if self.nback == 1 else 4)
blit(start_msg, 5, (P.screen_c[0], int(P.screen_y * 0.75)))
flip()
def trial(self):
start_delay = CountDown(P.origin_wait_time)
while start_delay.counting():
ui_request()
fill()
blit(self.tracker_dot, 5, self.origin_pos)
flip()
animate_start = self.evm.trial_time
self.figure.animate()
animate_time = self.evm.trial_time - animate_start
avg_velocity = self.figure.path_length / animate_time
if self.response_type == PHYS:
self.physical_trial()
elif self.response_type == MOTR:
self.imagery_trial()
else:
self.control_trial()
fill()
flip()
if self.__practicing__:
return
return {
"session_num":
self.session_number,
"block_num":
P.block_number,
"trial_num":
P.trial_number,
"response_type":
self.response_type,
"feedback_type":
self.feedback_type,
"figure_type":
self.figure_name,
"figure_file":
self.file_name + ".tlf",
"stimulus_gt":
self.animate_time, # intended animation time
"stimulus_mt":
animate_time, # actual animation time
"avg_velocity":
avg_velocity, # in pixels per second
"path_length":
self.figure.path_length,
"trace_file":
(self.file_name + ".tlt") if self.response_type == PHYS else 'NA',
"rt":
self.rt,
"it":
self.it,
"control_question":
self.control_question if self.response_type == CTRL else 'NA',
"control_response":
self.control_response,
"mt":
self.mt
}