The current study examined the extent to which pupillary responses (both pretrial baseline
and phasic responses) would accurately track lapses of attention as predicted by theories of …

The current study examined pupillary correlates of fluctuations and lapses of sustained
attention. Participants performed a sustained attention task with either a varied ISI or a fixed …

Our ability to sustain attention for prolonged periods of time is limited. Studies on the
relationship between lapses of attention and psychophysiological markers of attentional …

Attentional effort relates to the allocation of limited-capacity attentional resources to meet
current task demands and involves the activation of top-down attentional systems in the …

Pupillary measures have been linked to arousal and attention as well as activity in the
brainstem's locus coeruleus norepinephrine (LC-NE) system. Similarly, there is evidence …

This research examined a novel suggestion regarding the involvement of the locus
coeruleus–norepinephrine (LC–NE) system in orienting reflexive (exogenous) attention. A …

Accumulating evidence suggests that the brain can efficiently process both external and
internal information. The processing of internal information is a distinct “offline” cognitive …

In 3 experiments, we examined fluctuations in working memory (WM) performance and
associated changes in pretrial and task-evoked pupil diameter. Additionally, we examined …

Attention is not always directed to events in the external environment. On occasion our
thoughts wander to people and places distant from the here and now. Sometimes, this lack …

There has been some controversy as to whether baseline pupil size is related to individual
differences in cognitive ability. Previously, we had shown that a larger baseline pupil size …