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arxiv: 2604.23081 · v1 · submitted 2026-04-25 · 💻 cs.HC

Recognition: unknown

Visual Accessibility in a Virtual Kitchen: Effects of Open Shelving on Performance, Cognitive Load, and Experience in Older Adults with and without MCI

Ibrahim Bilau , Eunhwa Yang , Hyeokhyen Kwon , Stacie Smith , Bruce Walker , Hui Cai , Ece Erdogmus , Omobolanle Ogunseiju
Authors on Pith no claims yet

Pith reviewed 2026-05-08 07:44 UTC · model grok-4.3

classification 💻 cs.HC
keywords open shelvingvisual accessibilitymild cognitive impairmentvirtual kitchenolder adultstask performancegaze entropycognitive load
0
0 comments X

The pith

Open shelving reduces task time and physical effort in a virtual kitchen for older adults with and without mild cognitive impairment.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper tests whether visual accessibility via open shelving rather than closed cabinets improves item retrieval performance, reduces physical demands, and changes visual search in a simulated kitchen. It compares these outcomes between older adults with and without mild cognitive impairment using objective and subjective measures. The work matters because many daily tasks rely on locating stored items, and small design shifts might support independence as cognition changes with age. Results showed faster completion and less movement with open shelving, plus altered gaze patterns that differed by cognitive status, though self-reported effort stayed the same.

Core claim

Open shelving significantly reduced task duration (beta = -291.20, p < .001) and physical activity level (beta = -0.00615, p = .008) compared with closed cabinets. Gaze entropy increased overall (beta = 1.29, p = .001), with a Setting x MCI interaction (p = .009) and moderation by MoCA score (p < .001). No significant differences appeared in NASA-TLX cognitive load scores or intrinsic motivation. Qualitative interviews indicated reduced memory-based search and noted benefits for independence, aesthetics, safety, and adoption.

What carries the argument

The repeated-measures comparison of open shelving versus closed cabinet conditions during a virtual item retrieval task, tracked via task duration, ENMO physical activity, gaze entropy, NASA-TLX, and post-task interviews.

If this is right

  • Visually accessible storage can shorten daily tasks and lower movement demands for older users.
  • Gaze patterns shift toward more organized search when items are visible without opening doors.
  • Cognitive status moderates the size of the visual-search change but not the performance gains.
  • Subjective effort ratings may not capture objective efficiency improvements from design changes.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • Home redesigns using open shelving could reduce fatigue or fall risk during routine activities.
  • Combining this approach with memory aids might further support users with MCI in real settings.
  • Testing across different kitchen layouts or cultural storage norms would check how widely the benefits apply.

Load-bearing premise

That performance, gaze patterns, and reports collected in the virtual kitchen accurately reflect how older adults would use and experience real physical kitchens.

What would settle it

Repeating the retrieval task in actual home kitchens equipped with open versus closed storage and finding no reliable drop in completion time or physical activity would undermine the central results.

read the original abstract

This study examines how visual accessibility through cabinet design influences task performance, cognitive load, physical activity level, motivation, and user experience in a virtual kitchen among older adults with and without mild cognitive impairment (MCI). Seventeen older adults (7 with MCI, 10 without) completed a repeated-measures item retrieval task under two conditions, closed cabinets and open shelving, using a counterbalanced within-subjects design. Measures included task duration, physical activity level (ENMO), cognitive load (NASA-TLX and gaze entropy), intrinsic motivation (IMI), and post-task interviews. Open shelving significantly reduced task duration (beta = -291.20, p < .001) and physical activity level (beta = -0.00615, p = .008). Gaze entropy increased (beta = 1.29, p = .001), with a significant Setting x MCI interaction (p = .009) and moderation by MoCA score (p < .001). NASA-TLX and intrinsic motivation did not differ significantly between conditions. Qualitative findings indicated reduced reliance on memory-based search and highlighted themes related to independence, aesthetics, safety, and adoption. Overall, visual accessibility improved efficiency and reduced movement demands while altering visual-search organization, with divergence between subjective and objective indicators of cognitive load. These findings support visually accessible design strategies to enhance functional performance and inform cognitively supportive built environments for aging populations.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

2 major / 2 minor

Summary. The paper examines effects of open shelving versus closed cabinets in a virtual kitchen on task performance, cognitive load, physical activity, motivation, and experience among 17 older adults (7 with MCI). Using a counterbalanced within-subjects design, it reports that open shelving reduces task duration (beta = -291.20, p < .001) and ENMO physical activity (beta = -0.00615, p = .008), increases gaze entropy (beta = 1.29, p = .001) with a Setting x MCI interaction (p = .009) and MoCA moderation (p < .001), but shows no differences in NASA-TLX or intrinsic motivation. Qualitative interviews suggest reduced memory reliance and themes of independence and safety.

Significance. If the results hold, the work provides preliminary evidence that visual accessibility can enhance efficiency and reorganize visual search in simulated kitchen tasks for older adults, with differential effects by cognitive status. This has potential to inform design guidelines for aging-in-place environments, though the virtual setting and small sample constrain broader claims about real-world built environments.

major comments (2)
  1. [Abstract/Results] Abstract/Results: With n=17 (only 7 MCI), the reported Setting x MCI interaction (p=.009) and MoCA moderation (p<.001) require accompanying effect sizes, confidence intervals, and a sensitivity or post-hoc power analysis to establish robustness; small subgroups risk unstable estimates for the central interaction claim.
  2. [Methods/Discussion] Methods/Discussion: The virtual kitchen omits real motor actions (door opening, reaching, balance) that could interact with cognitive load in MCI participants; without a physical mock-up validation or explicit discussion of how VR fidelity affects the physical activity reduction claim, generalization to built environments remains untested and load-bearing for the applied implications.
minor comments (2)
  1. [Methods] Clarify the exact computation of gaze entropy (e.g., which entropy formula, eye-tracking sampling rate) and its prior validation as a cognitive-load proxy in older adults, given the divergence from unchanged NASA-TLX scores.
  2. [Abstract/Results] The abstract summarizes qualitative themes only at a high level; adding 1-2 representative quotes or a brief thematic table would strengthen the experience findings without lengthening the paper.

Simulated Author's Rebuttal

2 responses · 0 unresolved

We thank the referee for the constructive feedback on our manuscript. We address each major comment below with clarifications and indicate where revisions will be made to strengthen the paper.

read point-by-point responses

  1. Referee: [Abstract/Results] Abstract/Results: With n=17 (only 7 MCI), the reported Setting x MCI interaction (p=.009) and MoCA moderation (p<.001) require accompanying effect sizes, confidence intervals, and a sensitivity or post-hoc power analysis to establish robustness; small subgroups risk unstable estimates for the central interaction claim.

    Authors: We agree that the small sample, particularly the MCI subgroup (n=7), is a limitation that warrants additional statistical detail. In the revised manuscript, we will add effect sizes (e.g., standardized beta coefficients or partial eta-squared) and 95% confidence intervals for all reported effects, including the Setting x MCI interaction and MoCA moderation. We will also include a post-hoc sensitivity analysis to determine the minimum detectable effect size given our sample and design. While linear mixed models offer some robustness, we will explicitly discuss the preliminary nature of these interaction findings and the risk of unstable estimates in the Discussion section. revision: yes

  2. Referee: [Methods/Discussion] Methods/Discussion: The virtual kitchen omits real motor actions (door opening, reaching, balance) that could interact with cognitive load in MCI participants; without a physical mock-up validation or explicit discussion of how VR fidelity affects the physical activity reduction claim, generalization to built environments remains untested and load-bearing for the applied implications.

    Authors: We concur that the VR environment limits ecological validity by omitting physical motor actions such as door opening, reaching, and balance adjustments, which may differentially affect cognitive load and physical activity in MCI participants. The original manuscript notes the virtual setting as a controlled simulation but does not provide an extended discussion of these fidelity issues. In revision, we will expand the Methods and Discussion sections to explicitly address how the absence of these actions might influence the observed reductions in task duration and ENMO, and we will caution against direct generalization to real built environments. We will recommend future work incorporating physical mock-ups or hybrid designs. No physical validation was performed in this study. revision: partial

Circularity Check

0 steps flagged

No circularity: purely empirical study with direct measurements and standard statistics

full rationale

The paper reports outcomes from a counterbalanced within-subjects virtual task using objective measures (task duration, ENMO, gaze entropy) and subjective scales (NASA-TLX, IMI), analyzed via linear mixed-effects models that yield betas and p-values. No equations, derivations, fitted parameters renamed as predictions, self-citations as load-bearing premises, or ansatzes appear in the abstract or described methods. All central claims (e.g., beta = -291.20 for task duration) are direct statistical summaries of observed data rather than reductions to prior inputs by construction. This is a standard empirical design with no self-referential chain.

Axiom & Free-Parameter Ledger

0 free parameters · 2 axioms · 0 invented entities

The central claim rests on experimental data from a small sample analyzed with linear models under standard behavioral research assumptions; no free parameters, invented entities, or ad-hoc axioms beyond typical statistical and measurement validity assumptions.

axioms (2)
  • standard math Standard assumptions of linear mixed-effects models for repeated-measures data hold (normality, independence of residuals)
    Invoked to interpret beta coefficients and p-values for task duration, activity, and gaze entropy
  • domain assumption Gaze entropy and NASA-TLX validly index cognitive load in this task
    Used to conclude divergence between objective and subjective cognitive load indicators

pith-pipeline@v0.9.0 · 5594 in / 1351 out tokens · 85274 ms · 2026-05-08T07:44:00.282721+00:00 · methodology

discussion (0)

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Reference graph

Works this paper leans on

2 extracted references · 2 canonical work pages

  1. [1]

    & Walker, S

    Alzheimer's Association. (n.d.). Mild cognitive impairment (MCI): Symptoms & treatments. https://www.alz.org/alzheimers-dementia/what-is-dementia/related_conditions/mild-cognitive- impairment Bates, D., Mächler, M., Bolker, B., & Walker, S. (2015). Fitting linear mixed-effects models using lme4. Journal of Statistical Software, 67(1), 1–48. https://doi.or...

    work page doi:10.18637/jss.v067.i01 2015

  2. [2]

    aging in place

    https://doi.org/10.3389/fnhum.2015.00660 Parsons, T. D., Carlew, A. R., Magtoto, J., & Stonecipher, K. (2017). The potential of function-led virtual environments for ecologically valid measures of executive function in experimental and clinical neuropsychology. Neuropsychological Rehabilitation, 27(5), 777–807. https://doi.org/10.1080/09602011.2015.110952...

    work page doi:10.3389/fnhum.2015.00660 2015