
눈 움직임 선택은 눈 움직임과 관련된 노력을 최소화하는 방향으로 이루어진다.


coremsg

What determines where to move the eyes? We recently showed that pupil size, a marker of noradrenaline release, reflects the effort associated with making a saccade (’saccade costs’). Here we demonstrate saccade costs to critically drive saccade selection: when choosing between any two saccade directions, the least costly direction was consistently preferred. Strikingly, this principle even held during search in natural scenes in two additional experiments. When increasing cognitive demand experimentally through an auditory counting task, participants made fewer saccades and especially cut costly directions. This suggests that the eye-movement system and other cognitive operations consume similar resources that are flexibly allocated among each other as cognitive demand changes. Together, we argue that eye-movement behavior is tuned to adaptively minimize saccade-inherent effort.

### Competing Interest Statement

The authors have declared no competing interest.

Effort Drives Saccade Selection

눈-움직임-선택에-있어-노력이-핵심적인-역할을-한다


눈 움직임 선택에 있어 노력이 핵심적인 역할을 한다
