python心理学实验平台,python心理学实验程序（psychopy）

# import libraries

import random, base64

from psychopy import visual, core, event

# some constants

left = (-210, 0)

right = (210, 0)

center = (0, 0)

grey = (0, 0, 0)

# trial lists

group_list = ['11', '12', '22', '21']

wordtrials = [] # 10个供挑选的词语

letter_trials = [['L', 'Q'],

['L', 'O'],

['R', 'Q'],

['R', 'O']]

ele7 = # 先将图片转为base64 编码的字节，再存放在代码中，之后便不需要调用图片。

ele27 =

sex3 =

sex15 =

……

pictrials_prac = [[ele7, 'ele', '7'],

[ele27, 'ele', '27'],

[sex3, 'sex', '3'],

[sex15, 'sex', '15']]

pictrials = [[ele2, 'ele', '2'], [ele3, 'ele', '3'],

[ele4, 'ele', '4'], [ele6, 'ele', '6'],

[ele10, 'ele', '10'],

[ele11, 'ele', '11'],

[ele16, 'ele', '16'],

[ele19, 'ele', '19'],

[ele26, 'ele', '26'],

[ele29, 'ele', '29'],

[sex7, 'sex', '7'],

[sex8, 'sex', '8'],

[sex10, 'sex', '10'],

[sex13, 'sex', '13'],

[sex14, 'sex', '14'],

[sex21, 'sex', '21'],

[sex22, 'sex', '22'],

[sex26, 'sex', '26'],

[sex28, 'sex', '28'],

[sex30, 'sex', '30']]

# some functions

# get subject info

def get_subj_info():

print('请输入被试信息并按回车键')

subj_id = input('编号: ')

subj_group = input('组: ')

while subj_group not in group_list:

subj_group = input('组(刚刚的输入不符合要求，请重新输入): ')

subj_age = input('年龄: ')

return [subj_id, subj_group, subj_age]

# run a single trial

def run_pictrial(pars, letter_pars, data_file, subj_info):

file, catog, num= pars

l, letter = letter_pars

if l == 'R': loc = right

if l == 'L': loc = left

# present the fixation

text_msg.setText('+')

text_msg.setPos((0, 0))

text_msg.height = 50

text_msg.draw()

win.flip()

core.wait(1)

# present the pic

img_data = base64.b64decode(file)

with open('001.jpg', 'wb') as f:

f.write(img_data)

pic = visual.ImageStim(win, image='001.jpg')

pic.draw()

win.flip()

core.wait(0.6)

# present the pic & letter

pic.draw()

text_msg.setText(letter)

text_msg.setPos(loc)

text_msg.height = 50

text_msg.bold = False

text_msg.draw()

win.flip()

core.wait(0.05)

# present the pic

timer = core.Clock()

timer.reset()

pic.draw()

win.flip()

resp = event.waitKeys(maxWait=1.2, keyList=['q', 'o', 'z'], timeStamped=True)

rtime = timer.getTime()

a = list(str(rtime).split())

# write data to file

if resp == None:

keyletter = list('X')

acc = '0'

rrr = 0

else:

rrr = resp[0][0]

keyletter = list(resp[0][0])

if resp[0][0] == 'q':

ans = 'Q'

if resp[0][0] == 'o':

ans = 'O'

if resp[0][0] == 'z':

ans = 'z'

if ans == letter:

acc = '1'

else:

acc = '0'

trial_data = list([catog]) + list([num]) + letter_pars + list(keyletter) + list(acc) + a

trial_data = map(str, trial_data)

trial_data = ','.join(trial_data) + 'n'

data_file.write(trial_data)

# blank

win.setColor(grey)

win.flip()

core.wait(0.500)

return rrr

def pretext(text, positi, size, bold):

text_msg.setText(text)

text_msg.setPos(positi)

text_msg.height = size

text_msg.bold = bold

text_msg.draw()

# real experiment starts here

subj = get_subj_info()

# open a data file

# if not os.path.exists('data_file'): os.mkdir('data_file')# build a file

d_file = open('_'.join(subj[:2]) + '.csv', 'a')

# create a window

win = visual.Window((1024, 768), units='pix', fullscr=True)

# step 1

text_msg = visual.TextStim(win, text='message', pos=(0.0, 0.0))

pretext(u'您好，欢迎参加本次实验！', (0, 70), 20, False)

pretext(u'n接下来将呈现一段故事描述，该故事设定在实验中还需要再次回忆。', (0, 25), 20, False)

pretext(u'n请仔细阅读，并想象此经历正在你身上发生。', (0, -20), 20, False)

pretext(u'n准备好后，请按“空格键”开始。', (0, -70), 20, False)

win.flip()

event.waitKeys(keyList=['space'])

if subj[1] == '11' or subj[1] == '12': # 两种条件的故事(略)

pretext(u'', (0, 115), 25, False)

pretext(u'n', (0,90), 25, False)

pretext(u'n', (15, 50), 25, False)

pretext(u'n', (0, 10), 25, False)

pretext(u'n', (-98, -30), 25, False)

else:

pretext(u'', (0, 115), 25, False)

pretext(u'n', (0, 90), 25, False)

pretext(u'n', (15, 50), 25, False)

pretext(u'n', (0, 10), 25, False)

pretext(u'n', (-98, -30), 25, False)

pretext(u'n请仔细阅读，想象此情景中……', (0, -100), 20, False)

pretext(u'n准备好后，按“空格键”进行下一步。', (0, -130), 20, False)

win.flip()

event.waitKeys(keyList=['space'])

random.shuffle(wordtrials)

pretext(u'请从以下词语中挑选出3个你认为……最可能具备的特点。', (0, 100), 20, False)

pretext(u'n(在键盘上按下对应数字选择,最后按“空格键”进行下一步)', (0, 80), 20, False)

strr = 't'

pretext(strr.join(wordtrials[0:5]), (0, 20), 25, False)

pretext(u'n0tt1tt2tt3tt4n', (0, -10), 25, False)

pretext(u'n' + strr.join(wordtrials[5:]), (0, -50), 25, False)

pretext(u'n5tt6tt7tt8tt9', (0, -80), 25, False)

win.flip()

word_resp1 = event.waitKeys(maxWait=120, keyList=['0', '1', '2', '3', '4', '5', '6', '7', '8', '9'], timeStamped=True)

word_resp2 = event.waitKeys(maxWait=120, keyList=['0', '1', '2', '3', '4', '5', '6', '7', '8', '9'], timeStamped=True)

word_resp3 = event.waitKeys(maxWait=120, keyList=['0', '1', '2', '3', '4', '5', '6', '7', '8', '9'], timeStamped=True)

event.waitKeys(keyList=['space'])

# write data to file

trial_data = subj + list([wordtrials[int(word_resp1[0][0])]]) + list([wordtrials[int(word_resp2[0][0])]])

+ list([wordtrials[int(word_resp3[0][0])]])

trial_data = map(str, trial_data)

trial_data = ','.join(trial_data) + 'n'

d_file.write(trial_data)

# step 2

# step 2 practice

pretext(u'屏幕中央首先会出现一个“+”注视点，提醒你开始实验。', (0, 90), 20, False)

pretext(u'n接下来你将看到一张图片，在图片的左侧或右侧会出现一个字母。', (0, 60), 20, False)

pretext(u'n请判断该字母是O还是Q，是O则按“O”键，是Q则按“Q键”。', (0, 30), 20, True)

pretext(u'n请集中注意，又快又准地作出判断。', (0, -50), 20, False)

pretext(u'n准备好后，按“空格键”开始练习。', (0, -90), 20, False)

win.flip()

event.waitKeys(keyList=['space'])

aa = list(range(4))

random.shuffle(aa)

for t in aa:

ll = letter_trials[t]

pp = pictrials_prac[t]

run_pictrial(pp, ll, d_file, subj)

pretext(u'练习完毕，准备好后按“空格键”进入正式实验。', (0, 0), 20, False)

win.flip()

event.waitKeys(keyList=['space'])

# step 2 real

aa = list(range(80)) # 20张图片*字母q/o*字母位置左右=80种

random.shuffle(aa)

trial_data = 'experi2' + 'n'

d_file.write(trial_data)

for aaa in range(7): # 80种随机，同时不能连续呈现一样的图片

if aa[aaa]//4 == aa[aaa+1]//4:

zz = 0

while zz == 0:

bb = aa[aaa+1:]

random.shuffle(bb)

aa = aa[0:aaa+1]

aa.extend(bb)

if aa[aaa]//4 != aa[aaa+1]//4:

zz = 1

for t in aa:

ll = letter_trials[t%4]

pp = pictrials[t//4]

rr = run_pictrial(pp, ll, d_file, subj)

if rr == 'z': # 按z键退出trial循环，进入下一步

break

# step 3

pretext(u'请稍作休息，回忆实验开始时阅读过的场景，想象场景中……。', (0, 70), 20, False)

pretext(u'n接下来将出现一段补充描述，你有10秒时间阅读。', (0, 20), 20, False)

pretext(u'n材料消失后，请并根据指示进行评定。', (0, -20), 20, False)

pretext(u'n准备好后，按“空格键”进行下一步。', (0, -70), 20, False)

win.flip()

event.waitKeys(keyList=['space'])

pretext(u'情境中你结识的，是一位', (-120, 0), 20, False)

if subj[1] == '11' or subj[1] == '21': # 两种条件的描述

pretext(u'……', (64, 0), 20, True)

else:

pretext(u'……', (64, 0), 20, True)

pretext(u'的……', (170, 0), 20, False)

win.flip()

pretext(u'n这位……符合你心目中理想形象的程度为？', (0, 80), 20, True)

pretext(u'n1-7代表“非常不符合”到“非常符合”。', (0, 50), 20, False)

pretext(u'n1 2 3 4 5 6 7', (0, -20), 20, False)

pretext(u'n请在键盘上按下对应数字选择，再按“空格键”进行下一步。', (0, -80), 20, False)

core.wait(10)

win.flip()

pre_resp = event.waitKeys(maxWait=120, keyList=['1', '2', '3', '4', '5', '6', '7'], timeStamped=True)

event.waitKeys(keyList=['space'])

trial_data = map(str, list(pre_resp[0][0]))

trial_data = ','.join(trial_data) + 'n'

d_file.write(trial_data)

# blank

win.setColor(grey)

win.flip()

core.wait(1)

pretext(u'情境中你结识的，是一位', (-120, 10), 20, False)

if subj[1] == '11' or subj[1] == '21':

pretext(u'……', (64, 10), 20, True)

else:

pretext(u'……', (64, 10), 20, True)

pretext(u'的……。', (170, 10), 20, False)

pretext(u'n偶然……', (-230, -20), 20, False)

pretext(u'……', (117, -30), 20, True)

win.flip()

pretext(u'n这位……符合你心目中理想形象的程度为？', (0, 80), 20, True)

pretext(u'n1-7代表“非常不符合”到“非常符合”。', (0, 50), 20, False)

pretext(u'n1 2 3 4 5 6 7', (0, -20), 20, False)

pretext(u'n请在键盘上按下对应数字选择，再按“空格键”进行下一步。', (0, -80), 20, False)

core.wait(10)

win.flip()

post_resp = event.waitKeys(maxWait=120, keyList=['1', '2', '3', '4', '5', '6', '7'], timeStamped=True)

event.waitKeys(keyList=['space'])

trial_data = map(str, list(post_resp[0][0]))

trial_data = ','.join(trial_data) + 'n'

d_file.write(trial_data)

pretext(u'实验结束！感谢参与！请按空格键退出。', (0, 0), 20, False)

win.flip()

event.waitKeys(keyList=['space'])

# close data file

d_file.close()

# exit

win.close()

core.quit()