def main():
num_blocks = 16 # num_blocks * wordsPerBlock should not exceed 512
wordsPerBlock = 16 # words displayed (both latin and hebrew) per block
word_lengths = [4, 5, 6] # character lengths to select from word_list.txt
#ensure that video mode is at the maxium FPS
if sys.platform.startswith("linux"):
from subprocess import call
call(["xrandr","-r","144"])
pygame.init()
pygame.mouse.set_visible(False)
#get filepath/name for words displayed text file
if not os.path.isdir("data"):
os.mkdir("data")
num = 0
while True:
fn = "data/words_displayed_%02d.txt" % num
if not os.path.isfile(fn):
break
num += 1
#instantiate some objects
if not SUPRESS_TXT_OUTPUT:
words_displayed = open(fn, "w")
FC = FixationCross(color = "black")
restScreen = Screen(color = "white", fixation_cross = FC)
blankScreen = Screen(color = "white")
text = TextDisplay(font_size = 288,
font_type = "FreeMono.ttf",
screen_bgColor = "white",
)
# get and randomize a list of latin words from the word_list.txt file
word_list = []
with neurodot_present.resources.load_wordlist() as list_file:
for line in list_file.readlines():
if len(line.rstrip()) in word_lengths:
word_list.append(line.rstrip().upper())
random.shuffle(word_list)
# get list of dictionaries for latin/hebrew words and randomize
stim_list = []
for word in word_list[0:num_blocks*wordsPerBlock/2 + 1]:
vsync_value = len(word) - 3 #words are 4,5,6 letters long
latin = {'word': word, 'vsync_value': vsync_value}
hebrew = {'word': code_hebrew(word), 'vsync_value': vsync_value + 3}
stim_list.append(latin)
stim_list.append(hebrew)
random.shuffle(stim_list)
try:
#start sequence
run_start_sequence()
restScreen.run(duration = 2, vsync_value = 0)
block = 0
while block < num_blocks:
for stim in stim_list[block*wordsPerBlock : block*wordsPerBlock + wordsPerBlock]:
if not SUPRESS_TXT_OUTPUT:
words_displayed.write(stim['word'].encode("utf8") + "\n")
text.run(text_content = stim['word'],
duration = STIMULUS_DURATION,
vsync_value = stim['vsync_value']
)
#print text.textSurface.get_width()
# display blank screen
blankScreen.run(duration = STIMULUS_DURATION, vsync_value = 0)
if block < num_blocks-1:
# add an empty line to text file to signify between trials
if not SUPRESS_TXT_OUTPUT:
words_displayed.write("\n")
#rest period
bell()
restScreen.run(duration = 3, vsync_value = 0)
bell()
restScreen.run(duration = random.uniform(1,3), vsync_value = 0)
block += 1
except UserEscape as exc:
print exc
except:
print "Unexpected error:"
raise
finally:
if not SUPRESS_TXT_OUTPUT:
words_displayed.close()
# stop sequence
run_stop_sequence()
pygame.quit()
sys.exit()
from neurodot_present.present_lib import Screen, FixationCross, CheckerBoardFlasher, bell, UserEscape, run_start_sequence, run_stop_sequence
pygame.init()
TASK_DURATION = 30 #seconds
FC = FixationCross()
try:
#start sequence
run_start_sequence()
#setup task
CBF = CheckerBoardFlasher(flash_rate=0) #no flashing
CBF.setup_checkerboard(64)
black_SCR = Screen(color = "black",fixation_cross = FC)
#run sequence
CBF.run(duration = TASK_DURATION, vsync_value = 1)
black_SCR.run(duration = 1, vsync_value = 0)
bell()
black_SCR.run(duration = 5, vsync_value = 0)
black_SCR.run(duration = TASK_DURATION, vsync_value = 2)
black_SCR.run(duration = 1, vsync_value = 0)
bell()
except UserEscape:
print "User stopped the sequence"
except Exception, err:
raise err
finally:
#stop sequence
run_stop_sequence()
FC_left = FixationCross(color = 'black', position = (CBF.xL + 0.5*CBF.board_width, 0.0))
FC_right = FixationCross(color = 'black', position = (CBF.xR + 0.5*CBF.board_width, 0.0))
aFC_left = AnimatedFixationCross(position_initial = [0,0],
position_final = [CBF.xL + 0.5*CBF.board_width, 0.0],
movement_duration = MOVEMENT_DURATION,
color = 'black',
dt_threshold = 0.0005,
)
aFC_right = AnimatedFixationCross(position_initial = [0,0],
position_final = [CBF.xR + 0.5*CBF.board_width, 0.0],
movement_duration = MOVEMENT_DURATION,
color = 'black',
dt_threshold = 0.0005,
)
SCR_rest = Screen(color = 'neutral-gray', fixation_cross = FC_center)
SCR_left = Screen(color = 'neutral-gray', fixation_cross = FC_left)
SCR_right = Screen(color = 'neutral-gray', fixation_cross = FC_right)
aSCR_left = AnimatedScreen(screen_bgColor = 'neutral-gray', sprite_list = [aFC_left])
aSCR_right = AnimatedScreen(screen_bgColor = 'neutral-gray', sprite_list = [aFC_right])
aSCR_both = AnimatedScreen(screen_bgColor = 'neutral-gray', sprite_list = [aFC_left, aFC_right])
stimAttrs = zip(FLASH_RATES_LEFT, FLASH_RATES_RIGHT, VSYNC_VALUES)
try:
#start sequence
run_start_sequence()
while BLOCKS > 0:
# get reversal rates and vsync values for this block
random.shuffle(stimAttrs)
FLASH_DURATION = 8 #seconds
PAUSE_DURATION_RANGE = (2.0,5.0)
FC = FixationCross()
#CBFs
try:
#start sequence
run_start_sequence()
#trials
for b in range(BLOCKS):
stims = REPITITIONS*zip(FLASH_RATES, VSYNC_VALUES)
random.shuffle(stims)
for flash_rate, vsync_value in stims:
CBF = CheckerBoardFlasher(flash_rate=flash_rate)
CBF.setup_checkerboard(nrows = CHECKERBOARD_NROWS, show_fixation_dot = True)
CBF.run(duration = FLASH_DURATION, vsync_value = vsync_value)
SCR = Screen(color = "black", fixation_cross = FC)
pause_duration = random.uniform(*PAUSE_DURATION_RANGE)
SCR.run(duration = pause_duration, vsync_value = 0)
except UserEscape as exc:
print exc
finally:
#stop sequence
run_stop_sequence()
#exit
print "Exiting the presentation"
pygame.quit()
sys.exit()
import neurodot_present.present_lib as pl
from neurodot_present.present_lib import Screen, CheckerBoard, UserEscape, VsyncPatch
pl.DEBUG = False
################################################################################
if __name__ == "__main__":
pygame.init()
pygame.mouse.set_visible(True)
LOOP_MODE = 2 # 2 is using DoubleCheckerboardFlasher loop structure, 1 is using regular CheckerboardFlasher delay
DURATION = 20
flash_rate = 19 # Hz
display_mode = pygame.display.list_modes()[-1]
scr = Screen(display_mode = display_mode)
vsync_patch = VsyncPatch(left = scr.screen_right - pl.VSYNC_PATCH_WIDTH_DEFAULT,
bottom = scr.screen_bottom,
width = pl.VSYNC_PATCH_WIDTH_DEFAULT,
height = pl.VSYNC_PATCH_HEIGHT_DEFAULT
)
cb1 = CheckerBoard(1, color1 = [1.0, 1.0, 1.0], color2 = [0.0, 0.0, 0.0], width = 0.5)
cb2 = CheckerBoard(1, color1 = [0.0, 0.0, 0.0], color2 = [1.0, 1.0, 1.0], width = 0.5)
CB_cycle = itertools.cycle((cb2, cb1))
vvals_cycle = itertools.cycle((0, 15))
try:
vsync_value = vvals_cycle.next()
CB = CB_cycle.next()