N-Back Task#

[DESIGN]
## number of blocks
blocks = 3

## all of the following values can be one of these values to
## repeat for all blocks, or as many values as there
## are blocks and separated by commas; in case of two blocks:
## e.g. target_titles = 123 OR target_titles = 123, abc
## three values for two blocks or vice versa causes an error

## amount of trials (i.e. trails to make per block)
trials = 20

## default numbers of trials to look back at
nback = 2
## default mode, string with any one or more of PC
## P = Position
## C = Colour
nback_mode = PC

## probability of having one characteristic repeated
repeat_probability = 0.3


## number of boxes in the grid; they will be arranged in a
## square, so a square number is advantageous
num_boxes = 9

## after here everything is universal for all blocks again

## colours to vary, can be any of:  black, blue, darkgrey,
## expyriment_orange, expyriment_purple, green, grey, red,
## white, yellow, cyan, magenta or RGB colour codes such as
## (255, 0, 0) for red, separated by commas
colours = magenta, green, cyan

## the duration of stimuli display [ms]
display_duration = 3000
## min and max duration of the break in between to stimuli [ms]
break_duration = 500, 2000

## indicate whether or not to change the NBack level
change_nback_level = no
## lower threshold of the ratio of trials that have to be
## correct, after which the NBack level is increased
## (checked as bigger or equal than)
increase_nback_correct_ratio = 0.8
## upper threshold of the ratio of trials that have to be
## correct, after which the NBack level is decreased
## (checked as smaller than)
decrease_nback_correct_ratio = 0.5

[APPEARANCE]
## size of the grid relative to smallest screen dimension
## the button_height will be reduced on either side of the
## screen so it is centred
## canvas size can vary by block (see above)
canvas_size = 0.9

## line width for the grid to be drawn
grid_line_width = 1mm

## set antialiasing so that things appear a bit sharper
antialiasing = True

## the colour of grid and fixation cross
colour_grid = (255, 255, 255)
colour_fixation_cross = None

## the height of the buttons to be pressed;
## the width will be based on the screen width divided by the
## amount of labels
button_height = 20mm
## background, border, and text colour of the button
button_background_colour = (0, 0, 0)
button_border_colour = (80, 80, 80)
button_text_colour = white
## the button is highlighted when pressed; this defines the
## highlighting colour (for the inner edges)
## as well as the duration [ms]
button_highlight_colour = (255, 255, 255)
button_highlight_duration = 50