Ageing elevates peripheral spatial suppression of motion regardless of divided attention

Park, Soa; Nguyen, Bao Ngoc; McKendrick, Allison M

doi:10.1111/opo.12674

Cited by 3 publications

(2 citation statements)

References 50 publications

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“…Differences in surround suppression of motion with age have been studied in detail, with the mechanisms being the subject of some debate, 25 , 27 , 53 , 54 but the finding of elevated suppression in the periphery is a relatively new observation. 28 , 55 , 56 Surround suppression of motion has been shown to be relevant for object segmentation from its background, 53 and so it may be that our current findings are relevant to the many driving tasks that require discrimination of moving objects from their surroundings.…”

Section: Discussionmentioning

confidence: 70%

The Effects of Glare on the Perception of Visual Motion as a Function of Age

Sepulveda

Wood

Anderson

et al. 2022

Trans. Vis. Sci. Tech.

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Purpose The purpose of this study was to determine the impact of glare, that simulated the effects of oncoming vehicle headlights, and age on different aspects of motion perception in central and peripheral vision. Methods Twenty younger (mean age = 25 years, range = 20–32 years) and 20 older (mean age = 70 years, range = 60–79 years) visually healthy adults completed four visual motion tasks. Stimuli were presented centrally and at 15 degrees horizontal eccentricity for 2 viewing conditions: glare (continuous, off-axis) versus no glare. Motion tasks included minimum Gabor contrast required to discriminate direction of motion, translational global motion coherence, minimum duration of a Gabor to determine direction of motion (2 different size Gabors to determine spatial surround suppression), and biological motion detection in noise. Intraocular straylight was also measured (C-Quant). Results Older adults had increased intraocular straylight compared with younger adults ( P < 0.001). There was no significant effect of glare on motion thresholds in either group for motion contrast ( P = 0.47), translational global motion ( P = 0.13), biological motion ( P = 0.18), or spatial surround suppression of motion ( P = 0.29). Older adults had elevated thresholds for motion contrast ( P < 0.001), biological motion ( P < 0.001), and differences in surround suppression of motion ( P = 0.04), relative to the younger group, for both the glare and no-glare conditions. Conclusions Although older adults had elevated thresholds for some motion perception tasks, glare from a continuous off-axis light source did not further elevate these thresholds either in central or peripheral vision. Translational Relevance A glare source that simulated the effect of oncoming headlights, did not impact motion perception measures relevant to driving.

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Section: Discussionmentioning

confidence: 70%

The Effects of Glare on the Perception of Visual Motion as a Function of Age

Sepulveda

Wood

Anderson

et al. 2022

Trans. Vis. Sci. Tech.

View full text Add to dashboard Cite

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“…Furthermore, less effective processing of events appearing at parafoveal regions in older participants is also against the above possibility. As an example, younger participants outperformed older participants in detection of motion direction at parafoveal areas ( Park et al, 2020 ). However, according to some results, irrelevant stimuli outside the focus of attention have larger effects in older adults ( Porter et al, 2012 ; Tsvetanov et al, 2013 ).…”

Section: Discussionmentioning

confidence: 99%

Older Adults Automatically Detect Age of Older Adults’ Photographs: A Visual Mismatch Negativity Study

Csizmadia

Petro

Kojouharova

et al. 2021

Front. Hum. Neurosci.

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The human face is one of the most frequently used stimuli in vMMN (visual mismatch negativity) research. Previous studies showed that vMMN is sensitive to facial emotions and gender, but investigations of age-related vMMN differences are relatively rare. The aim of this study was to investigate whether the models’ age in photographs were automatically detected, even if the photographs were not parts of the ongoing task. Furthermore, we investigated age-related differences, and the possibility of different sensitivity to photographs of participants’ own versus different ages. We recorded event-related potentials (ERPs) to faces of young and old models in younger (N = 20; 18–30 years) and older groups (N = 20; 60–75 years). The faces appeared around the location of the field of a tracking task. In sequences the young or the old faces were either frequent (standards) or infrequent (deviants). According to the results, a regular sequence of models’ age is automatically registered, and faces violating the models’ age elicited the vMMN component. However, in this study vMMN emerged only in the older group to same-age deviants. This finding is explained by the less effective inhibition of irrelevant stimuli in the elderly, and corresponds to own-age bias effect of recognition studies.

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Contrast Sensitivity on 1/f Noise Is More Greatly Impacted by Older Age for the Fovea Than Parafovea

Srinivasan

Turpin

McKendrick³

2021

Optom Vis Sci

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SIGNIFICANCE Contrast sensitivity changes across the visual field with age and is often measured clinically with various forms of perimetry on plain backgrounds. In daily life, the visual scene is more complicated, and therefore, the standard clinical measures of contrast sensitivity may not predict a patient's visual experience in more natural environments. PURPOSE This study aims to determine whether contrast thresholds in older adults are different from younger adults when measured on a 1/f noise background (a nonuniform background whose spatial frequency content is similar to those present in the natural vision environments). METHODS Twenty younger (age range, 20 to 35 years) and 20 older adults (age range, 61 to 79 years) with normal ocular health were recruited. Contrast thresholds were measured for a Gabor patch of 6 cycles per degree (sine wave grating masked by a Gaussian envelope of standard deviation 0.17°) presented on 1/f noise background (root-mean-square contrast, 0.05 and 0.20) that subtended 15° diameter of the central visual field. The stimulus was presented at four eccentricities (0°, 2°, 4°, and 6°) along the 45° meridian in the noise background, and nine contrast levels were tested at each eccentricity. The proportion of correct responses for detecting the target at each eccentricity was obtained, and psychometric functions were fit to estimate the contrast threshold. RESULTS Older adults demonstrate increased contrast thresholds compared with younger adults. There was an eccentricity-dependent interaction with age, with the difference between groups being highest in the fovea compared with other eccentricities. Performance was similar for the two noise backgrounds tested. CONCLUSIONS Our results revealed a strong eccentricity dependence in performance between older and younger adults, highlighting age-related differences in the contrast detection mechanisms between fovea and parafovea for stimuli presented on nonuniform backgrounds.

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Ageing elevates peripheral spatial suppression of motion regardless of divided attention

Cited by 3 publications

References 50 publications

The Effects of Glare on the Perception of Visual Motion as a Function of Age

The Effects of Glare on the Perception of Visual Motion as a Function of Age

Older Adults Automatically Detect Age of Older Adults’ Photographs: A Visual Mismatch Negativity Study

Contrast Sensitivity on 1/f Noise Is More Greatly Impacted by Older Age for the Fovea Than Parafovea

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