Pupil diameter and microsaccades are captured by an eye tracker and compared for their
suitability as indicators of cognitive load (as beset by task difficulty). Specifically, two metrics …

A novel eye-tracked measure of pupil diameter oscillation is derived as an indicator of
cognitive load. The new metric, termed the Low/High Index of Pupillary Activity (LHIPA), is …

The pupil-measuring capability of video eye trackers can detect the task-evoked pupillary
response: subtle changes in pupil size which indicate cognitive load. We performed several …

A novel eye-tracked measure of the frequency of pupil diameter oscillation is proposed for
capturing what is thought to be an indicator of cognitive load. The proposed metric, termed …

Microsaccades are tiny eye movements that individuals perform unconsciously during
fixation. Despite that the nature and the functions of microsaccades are still lively debated …

Microsaccades are involuntary, small‐magnitude saccadic eye movements that occur during
attempted visual fixation. Recent research has found that attention can modulate …

Increases in pupil size have long been used as an indicator of cognitive load. Recently, the
Index of Cognitive Activity (ICA), a novel pupillometric measure has received increased …

Previous studies have related changes in attentional load to pupil size modulations.
However, studies relating changes in attentional load and task experience on a finer scale to …

Pupillometry is used to indicate the relative extent of processing demands within or between
tasks; however, this analysis is complicated by the fact that the pupil also responds to low …

Microsaccades (MSs) are small eye movements that occur during attempted visual fixation.
While most studies concerning MSs focus on their roles in visual processing, some also …