Parameter | Definition | Remark |
The average reaction time (ms) | The average response time of correct responses | Processing speed |
Hit rate (%) | The number of targets detected/ the number of targets × 100% | Hit: correct response, concentration |
False alarm rate (%) | The number of responses to non-target stimuli/the number of non-target stimuli × 100% | False alarm: impulsivity |
Sensitivity | z(Hit) - z(False) | Perceptual sensitivity (the ability to discriminate between the target and non-target stimuli) |
Response bias β | Vertical coordinates of Hit/Vertical coordinates of False | Impulsivity and conservation (the subject’s criterion or “willingness” to report detection of a signal) |