Uncovering Distinct Drivers of Covert Attention in Complex Environments With Pupillometry DOI Creative Commons
Yuqing Cai, Stefan Van der Stigchel,

Julia Ganama

и другие.

Psychophysiology, Год журнала: 2025, Номер 62(3)

Опубликована: Март 1, 2025

ABSTRACT Spatial visual attention prioritizes specific locations while disregarding others. The location of spatial can be deployed without overt movements (covertly). dynamics covert are exceptionally difficult to measure due the hidden nature attention. One way implicitly index is via pupillary light response (PLR), as strength PLR modulated by where allocated. However, this method has so far necessitated simplistic stimuli and targeted only one driver per experiment. Here we report a novel pupillometric that allows tracking multiple effects on with highly complex stimuli. Participants watched movie clips either passively viewing or top‐down shifting targets left, right, both sides field. Using recent toolbox (Open‐DPSM), evaluated whether luminance changes in regions presumably receiving more contribute strongly responses—and thereby reveal Three established pupil responses were found: (1) bottom‐up effect suggesting drawn dynamic regions, (2) towards instructed direction, (3) an overall tendency attend left side (i.e. pseudoneglect). Beyond successful validation our method, these drivers did not modulate each other's effects, indicating independent contributions bottom‐up, top‐down, pseudoneglect present. We further explain how use Open‐DPSM track brief tutorial.

Язык: Английский

Presaccadic Attention Shifts Up‐ and Downwards: Evidence From the Pupil Light Response DOI Creative Commons
Damian Koevoet, Marnix Naber, Christoph Strauch

и другие.

Psychophysiology, Год журнала: 2025, Номер 62(3)

Опубликована: Март 1, 2025

ABSTRACT Vision is introspectively stable, yet every eye movement moves the image of world on retina. The dominant view states that attention must precede saccades to prepare brain for postsaccadic retinal input, which ensures a stable visual experience. A recent surge studies investigated asymmetries around field, including in presaccadic attention. Such demonstrated benefits task performance horizontal and downward saccades, but strikingly no such benefit was observed upward saccades. An absence shifts would contrast indicate may not be necessary ensure perceptual continuity. Here, we capitalized fact pupil light response robustly tracks spatial investigate whether up‐ downwards. We manipulated landing brightness ensuing saccade could prepared prior saccade. Specifically, either presented patches throughout trial or only these upon onset. In two experiments, earlier responses both when presaccadically. This shows shifted agrees with being instrumental realizing Reconciling previously contradictory findings, can without necessarily yielding all facets processing at attended location. Nevertheless, our findings demonstrate shift along vertical meridian.

Язык: Английский

Процитировано

1
The forgotten wave of early pupillometry research DOI
Christoph Strauch

Trends in Neurosciences, Год журнала: 2024, Номер 47(8), С. 571 - 572

Опубликована: Авг. 1, 2024

Язык: Английский

Процитировано

4
Uncovering Distinct Drivers of Covert Attention in Complex Environments With Pupillometry DOI Creative Commons
Yuqing Cai, Stefan Van der Stigchel,

Julia Ganama

и другие.

Psychophysiology, Год журнала: 2025, Номер 62(3)

Опубликована: Март 1, 2025

ABSTRACT Spatial visual attention prioritizes specific locations while disregarding others. The location of spatial can be deployed without overt movements (covertly). dynamics covert are exceptionally difficult to measure due the hidden nature attention. One way implicitly index is via pupillary light response (PLR), as strength PLR modulated by where allocated. However, this method has so far necessitated simplistic stimuli and targeted only one driver per experiment. Here we report a novel pupillometric that allows tracking multiple effects on with highly complex stimuli. Participants watched movie clips either passively viewing or top‐down shifting targets left, right, both sides field. Using recent toolbox (Open‐DPSM), evaluated whether luminance changes in regions presumably receiving more contribute strongly responses—and thereby reveal Three established pupil responses were found: (1) bottom‐up effect suggesting drawn dynamic regions, (2) towards instructed direction, (3) an overall tendency attend left side (i.e. pseudoneglect). Beyond successful validation our method, these drivers did not modulate each other's effects, indicating independent contributions bottom‐up, top‐down, pseudoneglect present. We further explain how use Open‐DPSM track brief tutorial.

Язык: Английский

Процитировано

0