Matplotlib 测量反应时间的视觉刺激代码

我正试图重新做一个视觉刺激实验。首先，根据我想要的刺激数量，我创建了随机坐标点。在我向某人展示图像后，如果图片上有蓝色圆圈，他们必须按“p”，如果没有，则按“a”。代码可以工作，但是第一次键盘输入没有更新图像，图像在第二次输入后得到更新，但是由于第二次输入使第二个图像显示，它已经是前面的一个输入了。我为第二个图像输入的内容已经为第三个图像记录下来，依此类推。重要的部分是在创建分数数组之后。有人能解释一下我的错误以及如何改正吗

import numpy as np
from scipy import stats
import matplotlib.pyplot as plt
import keyboard
import time



def random_coordinates(n): #Function to create random coordinates for the signal or nosignal
    randcoord = []
    x = np.random.randint(0,101, 2*n) #create random coordinates (X,Y) for each signal or distractor
    randcoord.append(x)
    return randcoord
    


def graphs_presentabsent(randcoord, y, n): #Graphs depending on if there is a signal present or not for 4

    if y == 1 and n==4: #If signal is present uses this to create 4 markers with random coordinates
    
        figManager = plt.get_current_fig_manager() #Full Screen Window
        figManager.window.showMaximized()
        plt.plot(randcoord[0][0], randcoord[0][1], 'bo', randcoord[0][2], randcoord[0][3], 'ro', randcoord[0][4], randcoord[0][5],\
                'ro', randcoord[0][6], randcoord[0][7], 'ro', ms = 22, fillstyle = 'none') 
        plt.title("Press 'p' if stimulus present or 'a' if absent", fontsize = 20)   
        plt.show()
        
    elif y == 0 and n==4: #If no signal is present uses this to create 4 markers with random coordinates
    
        figManager = plt.get_current_fig_manager() #Full Screen Window
        figManager.window.showMaximized()
        plt.plot(randcoord[0][0], randcoord[0][1], 'ro', randcoord[0][2], randcoord[0][3], 'ro', randcoord[0][4], randcoord[0][5],\
                'ro', randcoord[0][6], randcoord[0][7], 'ro', ms = 22, fillstyle = 'none') 
        plt.title("Press 'p' if stimulus present or 'a' if absent", fontsize = 20)               
        plt.show()
        
    elif y == 1 and n==8 : #If signal is present uses this to create 8 markers with random coordinates
        
        figManager = plt.get_current_fig_manager() #Full Screen Window
        figManager.window.showMaximized()
        plt.plot(randcoord[0][0], randcoord[0][1], 'bo', randcoord[0][2], randcoord[0][3], 'ro', randcoord[0][4], randcoord[0][5],\
                'ro', randcoord[0][6], randcoord[0][7], 'ro', randcoord[0][8], randcoord[0][9], 'ro', randcoord[0][10],\
                 randcoord[0][11], 'ro', randcoord[0][12], randcoord[0][13], 'ro', randcoord[0][14], randcoord[0][15], 'ro',\
                 ms = 22, fillstyle = 'none')  
        plt.title("Press 'p' if stimulus present or 'a' if absent", fontsize = 20)   
            
    elif y == 0 and n==8: #If no signal is present uses this to create 8 markers with random coordinates
        
        figManager = plt.get_current_fig_manager() #Full Screen Window
        figManager.window.showMaximized()        
        plt.plot(randcoord[0][0], randcoord[0][1], 'ro', randcoord[0][2], randcoord[0][3], 'ro', randcoord[0][4], randcoord[0][5],\
                'ro', randcoord[0][6], randcoord[0][7], 'ro', randcoord[0][8], randcoord[0][9], 'ro', randcoord[0][10],\
                 randcoord[0][11], 'ro', randcoord[0][12], randcoord[0][13], 'ro', randcoord[0][14], randcoord[0][15], 'ro',\
                 ms = 22, fillstyle = 'none')     
        plt.title("Press 'p' if stimulus present or 'a' if absent", fontsize = 20)               

    elif y == 1 and n==12:
        figManager = plt.get_current_fig_manager() #Full Screen Window
        figManager.window.showMaximized()
        plt.plot(randcoord[0][0], randcoord[0][1], 'bo', randcoord[0][2], randcoord[0][3], 'ro', randcoord[0][4], randcoord[0][5],\
                'ro', randcoord[0][6], randcoord[0][7], 'ro', randcoord[0][8], randcoord[0][9], 'ro', randcoord[0][10],\
                 randcoord[0][11], 'ro',randcoord[0][12], randcoord[0][13], 'ro', randcoord[0][14], randcoord[0][15], 'ro',\
                 randcoord[0][16], randcoord[0][17], 'ro',randcoord[0][18], randcoord[0][19], 'ro',randcoord[0][20], \
                 randcoord[0][21], 'ro', randcoord[0][22], randcoord[0][23], 'ro', ms = 22, fillstyle = 'none')   
        plt.title("Press 'p' if stimulus present or 'a' if absent", fontsize = 20)   
            
    elif y == 0 and n==12:
        figManager = plt.get_current_fig_manager() #Full Screen Window
        figManager.window.showMaximized()
        plt.plot(randcoord[0][0], randcoord[0][1], 'ro', randcoord[0][2], randcoord[0][3], 'ro', randcoord[0][4], randcoord[0][5],\
                'ro', randcoord[0][6], randcoord[0][7], 'ro', randcoord[0][8], randcoord[0][9], 'ro', randcoord[0][10],\
                 randcoord[0][11], 'ro',randcoord[0][12], randcoord[0][13], 'ro', randcoord[0][14], randcoord[0][15], 'ro',\
                 randcoord[0][16], randcoord[0][17], 'ro',randcoord[0][18], randcoord[0][19], 'ro',randcoord[0][20], \
                 randcoord[0][21], 'ro', randcoord[0][22], randcoord[0][23], 'ro', ms = 22, fillstyle = 'none')  
        plt.title("Press 'p' if stimulus present or 'a' if absent", fontsize = 20)               

    elif y == 1 and n==16:
        figManager = plt.get_current_fig_manager() #Full Screen Window
        figManager.window.showMaximized()
        plt.plot(randcoord[0][0], randcoord[0][1], 'bo', randcoord[0][2], randcoord[0][3], 'ro', randcoord[0][4], randcoord[0][5],\
                'ro', randcoord[0][6], randcoord[0][7], 'ro', randcoord[0][8], randcoord[0][9], 'ro', randcoord[0][10],\
                 randcoord[0][11], 'ro', randcoord[0][12], randcoord[0][13], 'ro', randcoord[0][14], randcoord[0][15], 'ro',\
                 randcoord[0][16], randcoord[0][17], 'ro',randcoord[0][18], randcoord[0][19], 'ro',randcoord[0][20], \
                 randcoord[0][21], 'ro', randcoord[0][22], randcoord[0][23], 'ro', randcoord[0][24], randcoord[0][25], 'ro',\
                 randcoord[0][26], randcoord[0][27], 'ro', randcoord[0][28], randcoord[0][29], 'ro', randcoord[0][30],\
                 randcoord[0][31], 'ro', ms = 22, fillstyle = 'none')
        plt.title("Press 'p' if stimulus present or 'a' if absent", fontsize = 20)   
            
    elif y == 0 and n==16:
        figManager = plt.get_current_fig_manager() #Full Screen Window
        figManager.window.showMaximized()
        plt.plot(randcoord[0][0], randcoord[0][1], 'ro', randcoord[0][2], randcoord[0][3], 'ro', randcoord[0][4], randcoord[0][5],\
                'ro', randcoord[0][6], randcoord[0][7], 'ro', randcoord[0][8], randcoord[0][9], 'ro', randcoord[0][10],\
                 randcoord[0][11], 'ro', randcoord[0][12], randcoord[0][13], 'ro', randcoord[0][14], randcoord[0][15], 'ro',\
                 randcoord[0][16], randcoord[0][17], 'ro',randcoord[0][18], randcoord[0][19], 'ro',randcoord[0][20], \
                 randcoord[0][21], 'ro', randcoord[0][22], randcoord[0][23], 'ro', randcoord[0][24], randcoord[0][25], 'ro',\
                 randcoord[0][26], randcoord[0][27], 'ro', randcoord[0][28], randcoord[0][29], 'ro', randcoord[0][30],\
                 randcoord[0][31], 'ro', ms = 22, fillstyle = 'none')
        plt.title("Press 'p' if stimulus present or 'a' if absent", fontsize = 20)   
sets = [4,8,12,16] #set values for the number of stimuli displayed


scores = [] # vector to keep all scores


for ix in sets:
    for iy in range(3):
        

        fig = plt.figure(1, clear = True)    
        y = np.random.randint(0,2)  #generates randomly 1 or 0, if it is 1 the image will have signal
        stimuluscoords = random_coordinates(ix)
        graphs_presentabsent(stimuluscoords, y, ix)

        #When the item appears on the screen
        startTime = time.time()

        plt.waitforbuttonpress() 
        
        #When the user presses p or a
        endTime = time.time()
        reactionTime = endTime - startTime
        
        if keyboard.is_pressed('p'):
            letter = 'p'
        if keyboard.is_pressed('a'):
            letter = 'a'    

        if (letter == 'a' and y == 0) or (letter == 'p' and y == 1):
            temp = [reactionTime, ix]
            scores.append(temp)
        else:     
            reactionTime = 0    
        fig.canvas.draw()
        fig.canvas.flush_events()

plt.close()