def __init__(self, subject, pre_fix, contrast):
self.logger = Logger(subject, pre_fix)
self.control_contrast = contrast
tGuess = math.log10(self.control_contrast)
tGuessSd = 2.0 # sd of Gaussian before clipping to specified range
pThreshold = 0.82
#beta = 3.5
beta = 4.0
delta = 0.01
gamma = 0.5
grain = 0.01
scope = 3
self.quest_obj = QuestObject(tGuess=tGuess,tGuessSd=tGuessSd,pThreshold=pThreshold,
beta=beta,delta=delta,gamma=gamma,grain=grain,scope=scope)
self.trialsDesired = 50
self.logger.write("QUEST for Sensory Eye Dominance(SED) measurement")
self.logger.write("Quest object is initiated with "
"tGuess:%.2f "
"tGuessSd:%.2f "
"pThreshold:%.2f "
"beta:%.2f "
"delta:%.2f "
"gamma:%.2f "
"grain:%.2f "
"scope:%.2f "
%(tGuess,tGuessSd,pThreshold,beta,delta,gamma,grain,scope))
self.logger.write("Quest trials is set to %d" %self.trialsDesired)
def __init__(self, subject, pre_fix, contrast):
self.logger = Logger(subject, pre_fix)
self.control_contrast = contrast
tGuess = math.log10(self.control_contrast)
tGuessSd = 2.0 # sd of Gaussian before clipping to specified range
pThreshold = 0.82
#beta = 3.5
beta = 4.0
delta = 0.01
gamma = 0.5
grain = 0.01
scope = 3
self.quest_obj = QuestObject(tGuess=tGuess,
tGuessSd=tGuessSd,
pThreshold=pThreshold,
beta=beta,
delta=delta,
gamma=gamma,
grain=grain,
scope=scope)
self.trialsDesired = 50
self.logger.write("QUEST for Sensory Eye Dominance(SED) measurement")
self.logger.write(
"Quest object is initiated with "
"tGuess:%.2f "
"tGuessSd:%.2f "
"pThreshold:%.2f "
"beta:%.2f "
"delta:%.2f "
"gamma:%.2f "
"grain:%.2f "
"scope:%.2f " %
(tGuess, tGuessSd, pThreshold, beta, delta, gamma, grain, scope))
self.logger.write("Quest trials is set to %d" % self.trialsDesired)
class Quest(object):
def __init__(self, subject, pre_fix, contrast):
self.logger = Logger(subject, pre_fix)
self.control_contrast = contrast
tGuess = math.log10(self.control_contrast)
tGuessSd = 2.0 # sd of Gaussian before clipping to specified range
pThreshold = 0.82
#beta = 3.5
beta = 4.0
delta = 0.01
gamma = 0.5
grain = 0.01
scope = 3
self.quest_obj = QuestObject(tGuess=tGuess,tGuessSd=tGuessSd,pThreshold=pThreshold,
beta=beta,delta=delta,gamma=gamma,grain=grain,scope=scope)
self.trialsDesired = 50
self.logger.write("QUEST for Sensory Eye Dominance(SED) measurement")
self.logger.write("Quest object is initiated with "
"tGuess:%.2f "
"tGuessSd:%.2f "
"pThreshold:%.2f "
"beta:%.2f "
"delta:%.2f "
"gamma:%.2f "
"grain:%.2f "
"scope:%.2f "
%(tGuess,tGuessSd,pThreshold,beta,delta,gamma,grain,scope))
self.logger.write("Quest trials is set to %d" %self.trialsDesired)
def run(self, sed):
self.logger.write("="*36)
self.logger.write("QUEST for sensory eye dominance(SED)")
self.logger.write("Control eye contrast: %.2f" %self.control_contrast)
self.logger.write("Tested eye: %s" %sed.get_test_eye())
self.logger.write("="*36)
sed.update_control_contrast(self.control_contrast)
for k in range(self.trialsDesired):
# Get recommended level. Choose your favorite algorithm.
tTest = self.quest_obj.quantile()
rand_contrast = 10**tTest + random.choice([-0.1,0,0.1])
if rand_contrast <= 0:
tTest = -4.0
else:
tTest = math.log10(rand_contrast)
if tTest > 0: tTest = 0
test_contrast = 10**tTest
#tTest=q.mean()
#tTest=q.mode()
sed.update_orientation()
sed.update_test_contrast(test_contrast)
test_ori = sed.get_test_eye_orientation()
self.logger.write("Trial %d :\n"
"\ttest eye %s, contrast %f\n"
"\ttest eye orientation %s"%(k, sed.get_test_eye(), test_contrast, test_ori))
key_response = sed.run()
response = key_response == test_ori
if response:
self.logger.write("\tobserver reports test eye")
else:
self.logger.write("\tobserver reports control eye")
# Update the pdf
self.quest_obj.update(tTest, int(response))
# Get final estimate.
t = self.quest_obj.mean()
sd = self.quest_obj.sd()
self.logger.write('\n%s eye balanced contrast is %4.2f +/- %.2f'%(sed.get_test_eye(), 10**t, sd))
#t=QuestMode(q);
#print 'Mode threshold estimate is %4.2f'%t
self.logger.write('\nQuest beta analysis. Beta controls the steepness of the Weibull function.\n')
self.quest_obj.beta_analysis(self.logger)
self.logger.write_filestamp()
class Quest(object):
def __init__(self, subject, pre_fix, contrast):
self.logger = Logger(subject, pre_fix)
self.control_contrast = contrast
tGuess = math.log10(self.control_contrast)
tGuessSd = 2.0 # sd of Gaussian before clipping to specified range
pThreshold = 0.82
#beta = 3.5
beta = 4.0
delta = 0.01
gamma = 0.5
grain = 0.01
scope = 3
self.quest_obj = QuestObject(tGuess=tGuess,
tGuessSd=tGuessSd,
pThreshold=pThreshold,
beta=beta,
delta=delta,
gamma=gamma,
grain=grain,
scope=scope)
self.trialsDesired = 50
self.logger.write("QUEST for Sensory Eye Dominance(SED) measurement")
self.logger.write(
"Quest object is initiated with "
"tGuess:%.2f "
"tGuessSd:%.2f "
"pThreshold:%.2f "
"beta:%.2f "
"delta:%.2f "
"gamma:%.2f "
"grain:%.2f "
"scope:%.2f " %
(tGuess, tGuessSd, pThreshold, beta, delta, gamma, grain, scope))
self.logger.write("Quest trials is set to %d" % self.trialsDesired)
def run(self, sed):
self.logger.write("=" * 36)
self.logger.write("QUEST for sensory eye dominance(SED)")
self.logger.write("Control eye contrast: %.2f" % self.control_contrast)
self.logger.write("Tested eye: %s" % sed.get_test_eye())
self.logger.write("=" * 36)
sed.update_control_contrast(self.control_contrast)
for k in range(self.trialsDesired):
# Get recommended level. Choose your favorite algorithm.
tTest = self.quest_obj.quantile()
rand_contrast = 10**tTest + random.choice([-0.1, 0, 0.1])
if rand_contrast <= 0:
tTest = -4.0
else:
tTest = math.log10(rand_contrast)
if tTest > 0: tTest = 0
test_contrast = 10**tTest
#tTest=q.mean()
#tTest=q.mode()
sed.update_orientation()
sed.update_test_contrast(test_contrast)
test_ori = sed.get_test_eye_orientation()
self.logger.write("Trial %d :\n"
"\ttest eye %s, contrast %f\n"
"\ttest eye orientation %s" %
(k, sed.get_test_eye(), test_contrast, test_ori))
key_response = sed.run()
response = key_response == test_ori
if response:
self.logger.write("\tobserver reports test eye")
else:
self.logger.write("\tobserver reports control eye")
# Update the pdf
self.quest_obj.update(tTest, int(response))
# Get final estimate.
t = self.quest_obj.mean()
sd = self.quest_obj.sd()
self.logger.write('\n%s eye balanced contrast is %4.2f +/- %.2f' %
(sed.get_test_eye(), 10**t, sd))
#t=QuestMode(q);
#print 'Mode threshold estimate is %4.2f'%t
self.logger.write(
'\nQuest beta analysis. Beta controls the steepness of the Weibull function.\n'
)
self.quest_obj.beta_analysis(self.logger)
self.logger.write_filestamp()
