def __init__(self, name, colRGB, offset=0.15, delta=0.02, sound="", target=True): self.name = name # Set the colours up self.RGB = PyVSG.vsgTRIVIAL(colRGB[0], colRGB[1], colRGB[2]) self.CIE = vsg.vsgSpaceToSpace(PyVSG.vsgCS_RGB, self.RGB, PyVSG.vsgCS_CIE1976) if sound: sound_path = path + "\\" + sound # print "sound_path = %s" % (sound_path) self.sound = pygame.mixer.Sound (sound_path) # Only target colours track their quest values self.target = target if target: print "offset is %f" % offset # For this experiment we vary CIE.a (i.e L*) var = self.CIE.a + offset self.delta = float(delta) self.quest = Quest.QuestObject( var, # tGuess 0.3, # tGuessSd (sd of Gaussian) 0.7, # pThreshold 3.5, # beta 0.01, # delta 0.5, # gamma 0.03 # grain ) print "Created %s" % (self.__str__())
def presentExperimentTrial(self,curBlock,trial,whichPart,expNo,cols):
#
# Play the sound cue.
#
def playAudioCue(self):
# Play a sound until pygame has finished it
def playAndWait(sound):
sound.play()
while pygame.mixer.get_busy():
clock.tick(30)
# Play the intro
clock = pygame.time.Clock()
playAndWait(self.carrierSound)
# And the colour sound
playAndWait(trial.colour.sound)
# The same?
playAndWait(self.sameSound)
# start of presentExperimentTrial.
# get the left and right colours out of the list and set them
leftCol = cols[0]
leftCol_RGB = leftCol.asRGB()
leftCol_CIE = leftCol.asCIE()
self.firstStim.parameters.color = list(leftCol_RGB)
rightCol = cols[1]
rightCol_RGB = rightCol.asRGB()
rightCol_CIE = rightCol.asCIE()
self.secondStim.parameters.color = list(rightCol_RGB)
# First clear screen and wait for some specified time
# VE:
self.setAndPresentStimulus([])
# VISAGE
vsg.vsgSetDrawPage(0)
vsg.vsgSetDisplayPage(1)
time.sleep(self.experiment.preFixationDelay)
# VE:
self.presentStimulus(self.viewport_fixation) #show fixation cross
# VISAGE:
rgbWhite = PyVSG.vsgTRIVIAL(1.0, 1.0, 1.0)
labWhite = vsg.vsgSpaceToSpace(PyVSG.vsgCS_RGB, rgbWhite, PyVSG.vsgCS_CIE1976)
vsg.vsgSetDrawColour(labWhite)
vsg.vsgDrawRect(0,0,10,2)
vsg.vsgDrawRect(0,0,2,10)
vsg.vsgSetDisplayPage(0)
# Play the audio cue and wait
playAudioCue(self)
time.sleep(self.experiment.postFixationDelay)
# VE:
self.setAndPresentStimulus([self.fix1, self.fix2,self.firstStim, self.secondStim]) #fixation + first pic + second pic
# VISAGE
vsg.vsgSetDrawPage(1)
# cross
vsg.vsgSetDrawColour(labWhite)
vsg.vsgDrawRect(0,0,10,2)
vsg.vsgDrawRect(0,0,2,10)
# left box
vsg.vsgSetDrawColour(leftCol_CIE)
vsg.vsgDrawRect(-125, 0, 100, 100)
# right box
vsg.vsgSetDrawColour(rightCol_CIE)
vsg.vsgDrawRect(125, 0, 100, 100)
# switch to display 1
vsg.vsgSetDisplayPage(1)
responded = False
timeElapsed = False
pygame.event.clear() #discount any keypresses
responseStart = time.time()
while not responded:
# VE: self.setAndPresentStimulus([self.fix1, self.fix2,self.firstStim, self.secondStim]) #fixation + first pic + second pic
for event in pygame.event.get(pygame.KEYDOWN):
if event.key == self.experiment.sameResp or event.key == self.experiment.diffResp:
response = event.key
rt = time.time() - responseStart
pygame.event.clear()
responded = True
break
# Was the response correct
isRight = self.isResponseCorrect(response, leftCol, rightCol)
dist = leftCol.calculateColourDistance(rightCol)
print "presentExperimentTrial: correct:%s time:%f dist:%s" % (isRight, rt, dist)
# Dump run to results file.
results = []
results.append(expNo)
results.append(leftCol.name)
results.append(trial.type)
results.append(isRight)
results.append(leftCol.asCIEstr())
results.append(rightCol.asCIEstr())
results.append(dist)
results.append(rt)
self.experiment.storeResults(results)
return isRight
def setColourCIE(self, a, b, c): self.CIE = PyVSG.vsgTRIVIAL(a, b, c) self.RGB = vsg.vsgSpaceToSpace(PyVSG.vsgCS_CIE1976, self.CIE, PyVSG.vsgCS_RGB)
