Age differences in visual search for feature, conjunction, and triple-conjunction targets.

Humphrey, Darryl G.; Kramer, Arthur F.

doi:10.1037//0882-7974.12.4.704

Cited by 40 publications

(1 citation statement)

References 48 publications

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“…Research suggests that visual decline in elderly people is caused by decreased selective attention, focusing on specific information while overlooking others [ 2 , [59] , [60] , [61] ]. When searching for items described by a single feature, older people perform comparably to younger people but exhibit a disproportionate decrease in performance when searching for objects defined by a combination of several elements [ 2 , 62 , 63 ]. Therefore, due to the decline of all physical functions, older people are more likely to be disoriented than younger people; their wayfinding performance is typically poorer, particularly in hospitals, subways, airports, and other large complex public spaces.…”

Section: Literature Reviewmentioning

confidence: 99%

Elderly users’ perceptions of signage systems from tertiary hospitals in Guangzhou

Deng,

Zhang,

Shi

et al. 2024

Heliyon

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Section: Literature Reviewmentioning

confidence: 99%

Elderly users’ perceptions of signage systems from tertiary hospitals in Guangzhou

Deng,

Zhang,

Shi

et al. 2024

Heliyon

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Frontoparietal activation during visual conjunction search: Effects of bottom‐up guidance and adult age

Madden

Parks

Tallman

et al. 2017

Human Brain Mapping

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We conducted functional magnetic resonance imaging (fMRI) with a visual search paradigm to test the hypothesis that aging is associated with increased frontoparietal involvement in both target detection and bottom-up attentional guidance (featural salience). Participants were 68 healthy adults, distributed continuously across 19-78 years of age. Frontoparietal regions of interest (ROIs) were defined from resting-state scans obtained prior to task-related fMRI. The search target was defined by a conjunction of color and orientation. Each display contained one item that was larger than the others (i.e., a size singleton) but was not informative regarding target identity. Analyses of search reaction time (RT) indicated that bottom-up attentional guidance from the size singleton (when coincident with the target) was relatively constant as a function of age. Frontoparietal fMRI activation related to target detection was constant as a function of age, as was the reduction in activation associated with salient targets. However, for individuals 35 years of age and older, engagement of the left frontal eye field (FEF) in bottom-up guidance was more prominent than for younger individuals. Further, the age-related differences in left FEF activation were a consequence of decreasing resting-state functional connectivity in visual sensory regions. These findings indicate that age-related compensatory effects may be expressed in the relation between activation and behavior, rather than in the magnitude of activation, and that relevant changes in the activation-RT relation may begin at a relatively early point in adulthood.

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Reduced sensitivity for visual textures affects judgments of shape-from-shading and step-climbing behaviour in older adults

2016

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Falls on stairs are a major hazard for older adults. Visual decline in normal aging can affect step climbing ability, altering gait and reducing toe clearance. Here we show that a loss of fine-grained visual information associated with age can affect the perception of surface undulations in patterned surfaces. We go on to show that such cues affect the limb trajectories of young adults, but due to their lack of sensitivity, not that of older adults. Interestingly neither the perceived height of a step nor conscious awareness are altered by our visual manipulation but stepping behaviour is: suggesting that the influence of shape perception on stepping behaviour is via the unconscious, action-centred, dorsal visual pathway.

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Age differences in visual search for feature, conjunction, and triple-conjunction targets.

Cited by 40 publications

References 48 publications

Elderly users’ perceptions of signage systems from tertiary hospitals in Guangzhou

Elderly users’ perceptions of signage systems from tertiary hospitals in Guangzhou

Frontoparietal activation during visual conjunction search: Effects of bottom‐up guidance and adult age

Reduced sensitivity for visual textures affects judgments of shape-from-shading and step-climbing behaviour in older adults

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