The geometry of the Eye Vergence Angle (EVA) while fixating on a near and far target.

The geometry of the Eye Vergence Angle (EVA) while fixating on a near and far target.

<p>A closer target is associated with a larger EVA, and a farther target is associated with a smaller EVA.</p>

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Sonraí bibleagrafaíochta
Príomhchruthaitheoir:	Mohammed Safayet Arefin (22683505) (author)
Rannpháirtithe:	John Edward Swan II (22683508) (author), Russell Cohen Hoffing (22683511) (author), Steven M. Thurman (8611647) (author)
Foilsithe / Cruthaithe:	2025
Ábhair:	Neuroscience Physiology Pharmacology Sociology Mental Health Biological Sciences not elsewhere classified xlink "> recently three different environments significant main effect repeated measures design consistent individual differences veridical depth estimate including augmented reality eye vergence angle previously fixated targets virtual target objects target depth virtual reality fixated objects virtual objects vergence changes eye fixations starting depth participants fixated extended reality virtual world varying distances results showed natural settings convergence vs closer targets changes constantly 13 participants
Clibeanna:	Cuir clib leis Níl clibeanna ann, Bí ar an gcéad duine le clib a chur leis an taifead seo!

Míreanna comhchosúla

Eye Vergence Angle (EVA) calculation and an example of unprocessed eye tracking data.
de réir: Mohammed Safayet Arefin (22683505)
Foilsithe / Cruthaithe: (2025)

The Eye Vergence Angle (EVA) as predicted by (a) environment and eye movement end depth in meters, and (b) as predicted by eye movement end depth in .
de réir: Mohammed Safayet Arefin (22683505)
Foilsithe / Cruthaithe: (2025)

The EVA as predicted by eye movement end depth and participant (data from Fig 4b).
de réir: Mohammed Safayet Arefin (22683505)
Foilsithe / Cruthaithe: (2025)

The experiment placed targets at 4 different depths, resulting in 12 different vergence eye movements. Measurements are expressed in meters (m) and diopters (D).
de réir: Mohammed Safayet Arefin (22683505)
Foilsithe / Cruthaithe: (2025)

Predicting the eye vergence angle by end depth (Hypothesis H1) and environment (Hypothesis H2): reduction of the maximal model to the fitted model.
de réir: Mohammed Safayet Arefin (22683505)
Foilsithe / Cruthaithe: (2025)

The natural log ratio of Real target depth over XR target depth, plotted as points against the eye movement end depth, environment (AR, VR), and measure (EVA, Subjective Depth).
de réir: Mohammed Safayet Arefin (22683505)
Foilsithe / Cruthaithe: (2025)

The vergence stability hypothesis (H3), tested with Eq 3:
de réir: Mohammed Safayet Arefin (22683505)
Foilsithe / Cruthaithe: (2025)

(a) The visual stimulus was a Landolt C resolving to a fixation cross, resulting in a four-alternative forced choice visual discrimination task.
de réir: Mohammed Safayet Arefin (22683505)
Foilsithe / Cruthaithe: (2025)

Correlation between subjective depth (D) and normalized EVA (degrees).
de réir: Mohammed Safayet Arefin (22683505)
Foilsithe / Cruthaithe: (2025)

The EVA as predicted Eq 2, the linear mixed effects model.
de réir: Mohammed Safayet Arefin (22683505)
Foilsithe / Cruthaithe: (2025)

Analysis of Eq 3: the fitted model testing vergence stability (Hypothesis H3).
de réir: Mohammed Safayet Arefin (22683505)
Foilsithe / Cruthaithe: (2025)

Predicting the vergence stability hypothesis (H3): reducing the maximal model to the fitted model.
de réir: Mohammed Safayet Arefin (22683505)
Foilsithe / Cruthaithe: (2025)

Analysis of Eq 2, the fitted model testing the effect of end depth (Hypothesis H1) and environment (Hypothesis H2) on EVA.
de réir: Mohammed Safayet Arefin (22683505)
Foilsithe / Cruthaithe: (2025)

Analysis of Eq 4: the fitted model testing whether subjective depth judgments would be underestimated, and that EVA would provide a more veridical depth estimate than subjective depth judgments (Hypothesis H4).
de réir: Mohammed Safayet Arefin (22683505)
Foilsithe / Cruthaithe: (2025)

Predicting the natural log ratio of XR target depth over real target depth (Hypothesis H4): reducing the maximal model to the fitted model.
de réir: Mohammed Safayet Arefin (22683505)
Foilsithe / Cruthaithe: (2025)

A zoomed-in view of participant 11 from Fig 11.
de réir: Mohammed Safayet Arefin (22683505)
Foilsithe / Cruthaithe: (2025)

A zoomed-in view of participant 11 from Fig 8.
de réir: Mohammed Safayet Arefin (22683505)
Foilsithe / Cruthaithe: (2025)

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Image 1_Modulation of VR-HMD-induced cybersickness using cathodal transcranial direct current stimulation: a functional near-infrared spectroscopy study.jpeg
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Foilsithe / Cruthaithe: (2025)

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Foilsithe / Cruthaithe: (2025)

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