Skip to main content

Table 1 Definition of the different ocular measures used in the statistical analysis

From: Detecting concealed familiarity using eye movements: the role of task demands

 

Measure

Description

Parallel display

Dwell time

Total time (in ms) that gaze was directed to an area during the first 3000 ms of the trial

First and second dwell-time intervals

Dwell time during the period before the dot appearance was divided into two: first interval of the trial (0–1000 ms) and second interval of the trial (1000–3000 ms)

Number of visits

Number of times each face area was visited during the first 3000 ms of the trial. A single visit consists of all consecutive fixations on a specific area before moving out of that area

Duration of visits

The mean duration (in ms) of visits for each face (during the first 3000 ms of the trial)

Number of fixations

Number of fixations on a face (during the first 3000 ms of the trial)

Duration of fixations

The mean duration (in ms) of fixations on a face (during the first 3000 ms of the trial)

Single display

Mean duration of fixation

The mean duration (in ms) of fixations directed to the single-face (during the first 2000 ms of the trial)