Figure 2
From: Transcranial direct current stimulation of the posterior parietal cortex biases human hand choice
Target positions and point of subjective equality of hand choice. (A) Target positions. Starting position (bottom two squares), fixation point (central “+” mark), and the nine possible targets. The targets were set at angles of 0°, 8°, 25°, 45°, and 75° to either side of the mirror’s midline. (B) Point of subjective equality (PSE). The probability of choosing the right hand for each target is fitted to a logistic function for each participant. The horizontal axis indicates the target angle, where 0 is the midline as the physical centre (positive degree means rightward rotation and negative degree means leftward rotation relative to the midline). The vertical axis indicates the rate of right-hand selection. PSE, the estimated location at which participants were equally likely to use the right and left hand, was thus determined.
