psychopy coder模式编写心理试验程序 图片呈现和量表评分

摘要: 作为psychopy的一个示例程序

呈现图片

准备一张图片和一个python文件，如下图：



python文件中写如下代码：

# -*- coding: utf-8 -*-
"""
Created on Tue Apr 12 10:31:15 2016

@author: zbg
"""

from psychopy.visual import Window, ImageStim, TextStim
from psychopy import core, event, gui
import random

name='1.png'
win = Window()
stim = ImageStim(win, name)
stim.draw()
texture = TextStim(win, text = u'按空格键退出', pos = [0,30], units = 'pix')
texture.draw()
win.flip()

while 'space' not in event.getKeys():
pass
win.close()

运行后可以呈现图片

量表评分

编写如下程序可以实现量表评分

# -*- coding: utf-8 -*-
"""
Created on Sun Apr 19 16:50:21 2015

@author: zbg
"""

from psychopy.visual import Window, ImageStim, TextStim
from psychopy import core, event, gui
import random

scales = [
('Meaningful1', u"我能理解这幅画的意义"),
('Meaningful2', u"我能理解这幅画的主题"),
('Unity',       u"这幅画的构图是和谐统一的"),
('Complexity',  u"这幅画的构图是复杂的"),
('Variety',     u"这幅画构图是多样的"),
('Liking',      u"我喜欢这幅画"),
('Pleasing',    u"这幅画使我感到愉悦"),
('Interesting', u"这幅画能引起我的兴趣。"),
]

def ShowScale(text):
def GetMyKey():
event.clearEvents1('all')
keys=[]
while True:
while len(keys) == 0:
core.wait(0.1)
keys=event.getKeys()

if keys[0] in ['1', '2', '3', '4', '5', '6', '7']:
return keys[0]

keys = []

t =TextStim(win, text ,pos=(0,-0.0))
t.draw()
t =TextStim(win, u'1不同意------------------------------7非常同意',pos=(0,-50), units = 'pix')
t.draw()
win.flip()

key = GetMyKey()

t =TextStim(win, u'你按下了' + key,pos=(0,-0.2),color = (0 ,1.,0))#反馈
t.draw()
win.flip()
core.wait(0.5)

return key

win = Window()

result = {}
for label, text in scales:
key = ShowScale(text)
result[label] = key #把结果储存到字典里，后继可以保存到文件里。

win.close()
print result

把两个程序合在一起可以实现呈现图片，然后用量表评分，这里不做赘述。

psychopy自带的量表工具

你也可以使用psychopy自带的量表工具，它支持鼠标选择或者按键数字选择，用回车键确认或者鼠标点击方框确认。以下是示例代码与运行截图：

# -*- coding: utf-8 -*-
"""
Created on Tue Apr 12 10:31:15 2016

@author: zbg
"""
from psychopy import visual,event

win = visual.Window()
rating = visual.RatingScale(win=win, name='rating', marker=u'triangle',
size=1.5, pos=[0.0, -0.4], low=1, high=7, labels=[u'不同意', u'中立', u'完全同意'],
scale=u'你多大程度上赞同希拉里当选美国总统？')
#item = <statement, question, image, movie, ...>
while rating.noResponse:
#item.draw()
rating.draw()
win.flip()

visual.TextStim(win, text = u"选了%d用了%.3f秒\n按空格退出" % (rating.getRating(), rating.getRT())).draw()
win.flip()

while 'space' not in event.getKeys():
pass

print  rating.getRating()
print  rating.getRT()
print  rating.getHistory()

其他

另有一个完整的多种图片与量表评分的示例，完整程序（包括图片等文件）见：http://download.csdn.net/detail/zhanghao9547/8618453 或 http://vdisk.weibo.com/s/uu-WVvhhP2V2a
psychopy 定做实验程序 https://item.taobao.com/item.htm?spm=a230r.1.14.6.Q6E2OW&id=530690095131&ns=1&abbucket=15#detail