def getKeys():
keys = []
while PsychHID('KbQueueFlush'):
evt = PsychHID('KbQueueGetEvent')[0]
if evt['Pressed']:
K = chr(int(evt['CookedKey'])).lower()
keys.append((K, evt['Time']))
return keys
def kb_init():
# create the keyboard queue
PsychHID("KbQueueCreate") # Psychtoolbox
# start logging keyboard button presses
PsychHID("KbQueueStart")
# initializations
key_new = False
key_value = []
read_last = time.time()
read_interval = 1 / 3.1 # every 1/3.1 sec
return key_new, key_value, read_last, read_interval
def kb_read():
[key_new, firstPress, _, _, _] = PsychHID("KbQueueCheck")
# time when keyboard was last checked
read_last = time.time()
# if there was a key press find the key name
if key_new:
ind1, ind2 = np.unravel_index(firstPress.argmax(), firstPress.shape)
if (ind2) == 26:
key_value = "ESCAPE"
elif (ind2) == 12:
key_value = "Return"
else:
key_value = chr(ind2 + 1)
else:
key_value = []
return read_last, key_new, key_value
def _replacement_create_queue(self, num_slots=10000, flags=0, win_handle=None):
PsychHID('KbQueueCreate', self.device_number,
None, 0, num_slots, flags, win_handle)
instr_txt = (
"In this experiment,\npress the left key (←) when you see a sleeping cat,\n"
+ "and the right key (→) when you see an awake cat.\n" +
"Respond as quickly as possible!\n\nPress any key to start.")
instructions = visual.TextStim(win, instr_txt, height=0.2 / 5)
good_txt = visual.TextStim(win, 'GOOD', height=0.1, color='green')
bad_txt = visual.TextStim(win, 'BAD', height=0.1, color='red')
# input setup
key_list = np.zeros(256)
key_list[36] = 1 # left key
key_list[38] = 1 # right key
PsychHID('KbQueueCreate', 0, key_list)
# trial order
num_trials = 10
indices = [randint(0, len(imgs) - 1) for i in range(num_trials)]
block_data = [
dict.fromkeys(
['awake', 'name', 'start_time', 'rt', 'choice', 'correct'])
for i in range(num_trials)
]
instructions.draw()
win.flip()
event.waitKeys()
core.wait(2)
def kb_close():
PsychHID("KbQueueRelease")
return
def close_backend():
if KB_BACKEND == 'psychhid':
PsychHID('KbQueueStop')
elif io:
io.quit()
def getKeys():
keys = io.devices.keyboard.getPresses()
return [(k.key, k.time) for k in keys]
elif KB_BACKEND == 'psychopy.keyboard.iohub':
from psychopy.iohub import launchHubServer
io = launchHubServer()
from psychopy.hardware.keyboard import Keyboard as ptbKeyboard
ptb_kb = ptbKeyboard()
def getKeys():
keys = ptb_kb.getKeys(waitRelease=psychopy_keyboard_waitRelease)
return [(k.name, k.tDown) for k in keys]
elif KB_BACKEND == 'psychhid':
from psychtoolbox import PsychHID
ptb_keys = [1] * 256
PsychHID('KbQueueCreate', [], ptb_keys)
PsychHID('KbQueueStart')
def getKeys():
keys = []
while PsychHID('KbQueueFlush'):
evt = PsychHID('KbQueueGetEvent')[0]
if evt['Pressed']:
K = chr(int(evt['CookedKey'])).lower()
keys.append((K, evt['Time']))
return keys
def close_backend():
if KB_BACKEND == 'psychhid':
PsychHID('KbQueueStop')
elif io: