Cited by 56Visual perception and processing mechanismsNeural and Behavioral Psychology StudiesVisual Attention and Saliency Detection

Visual search and the aging brain: Discerning the effects of age-related brain volume shrinkage on alertness, feature binding, and attentional control.

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Müller-Oehring, Eva M., Schulte, Tilman, Rohlfing, Torsten, Pfefferbaum, Adolf, Sullivan, Edith V.·2013·Neuropsychology

Abstract

OBJECTIVE: Decline in visuospatial abilities with advancing age has been attributed to a demise of bottom-up and top-down functions involving sensory processing, selective attention, and executive control. These functions may be differentially affected by age-related volume shrinkage of subcortical and cortical nodes subserving the dorsal and ventral processing streams and the corpus callosum mediating interhemispheric information exchange. METHOD: Fifty-five healthy adults (25-84 years) underwent structural MRI and performed a visual search task to test perceptual and attentional demands by combining feature-conjunction searches with "gestalt" grouping and attentional cueing paradigms. RESULTS: Poorer conjunction, but not feature, search performance was related to older age and volume shrinkage of nodes in the dorsolateral processing stream. When displays allowed perceptual grouping through distractor homogeneity, poorer conjunction-search performance correlated with smaller ventrolateral prefrontal cortical and callosal volumes. An alerting cue attenuated age effects on conjunction search, and the alertness benefit was associated with thalamic, callosal, and temporal cortex volumes. CONCLUSION: Our results indicate that older adults can capitalize on early parallel stages of visual information processing, whereas age-related limitations arise at later serial processing stages requiring self-guided selective attention and executive control. These limitations are explained in part by age-related brain volume shrinkage and can be mitigated by external cues.

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  • Older participants show steeper search slopes than younger participants in feature-conjunction conditions.

    “However, in feature-conjunction conditions, where targets are distinguished from distractors by a combination of features (e.g., color and shape), older participants show steeper search slopes.”

    From Age-related slowing of response selection and production in a visual choice reaction time task (2015) · cites this paper as Müller-Oehring et al., 2013

    The Results (§3.2) report greater visual-load effects with older age in organized and disorganized conjunction searches, consistent with steeper search slopes. The relationship was not found in cued conjunction search, so the unqualified claim about conjunction conditions is broader than the finding. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • The magnitude of CRT slowing was similar to the age-related increases in search asymptotes observed in both feature search and conjunction search conditions.

    “Finally, The magnitude of CRT slowing was similar to the age-related increases in search asymptotes observed in both feature search and conjunction search conditions (Plude and Doussard-Roosevelt, 1989; Hommel et al., 2004; Müller-Oehring et al., 2013).”

    From Age-related slowing of response selection and production in a visual choice reaction time task (2015) · cites this paper as Müller-Oehring et al., 2013

    The Results (§3.2; page unavailable) report that older age correlated with slower responses in all visual-search tasks, including feature and conjunction search. They do not compare that slowing with CRT slowing or report age-related search asymptotes, so the claimed similarity in magnitude is unsupported. (LLM, conf=0.82)

    Experimental — accuracy not yet measured
  • Aging slows the more attentionally-demanding feature-integration stage of stimulus processing.

    “These results suggest that aging slows the more attentionally-demanding feature-integration stage of stimulus processing (Plude and Doussard-Roosevelt, 1989; Müller-Oehring et al., 2013).”

    From Age-related slowing of response selection and production in a visual choice reaction time task (2015) · cites this paper as Müller-Oehring et al., 2013

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  1. Posner MI 2008 Measuring alertness Annals of the New York Academy of Sciences 1129 193 199 Review 18591480

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Authors
Müller-Oehring, E. M., Schulte, T., Rohlfing, T., Pfefferbaum, A., & Sullivan, E. V.
Affiliations
  • SRI International (US)
  • Stanford Medicine (US)
Venue
Neuropsychology
Published
2013
Volume
27
Issue
1
Pages
48-59
ISSN
  • 0894-4105 (ISSN-L)
  • 1931-1559
OpenAlex
W1997369333
Cited by
56
References
85
Citations by year
2026: 3 · 2025: 2 · 2024: 4 · 2023: 4 · 2022: 6 · 2021: 3 · 2020: 3 · 2019: 4 · 2018: 5 · 2017: 3 · 2016: 7 · 2015: 9 · 2014: 3
FWCI
3.47
Type
journal article
Language
en
Open access
Locations
  • Neuropsychology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute on Aging (AG017919)
  • National Institute on Alcohol Abuse and Alcoholism (AA018022, AA010723, AA017168)
  • National Institute of Biomedical Imaging and Bioengineering (EB008381)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Visual Attention and Saliency Detection
Keywords
visual search, aging, conjunction search, feature binding, attentional cueing, alerting, ventrolateral prefrontal cortex, corpus callosum, thalamus, selective attention, executive function, perceptual grouping, healthy older adults
MeSH terms
Adult, Aged, Aged, 80 and over, Aging, Analysis of Variance, Attention, Brain, Cues, Female, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Middle Aged, Photic Stimulation, Psychophysics, Reaction Time, Visual Perception, Chi-Square Distribution

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