There is a strict maximum limit on the number of objects a human can apprehend simultaneously
Multiple cognitive studies support the existence of a strict capacity limit (typically around four items) on the number of objects the human perceptual and working memory systems can apprehend simultaneously.
The retrieved papers consistently point to a fixed capacity limit (often referred to as an object individuation range or working memory limit of about four items) in both visual and tactile modalities, supporting the claim that a strict maximum limit exists.
Park HB, Awh E. Contributions from Long-Term Memory Explain Superior Visual Working Memory Performance with Meaningful Objects.. 2026. https://doi.org/10.1523/jneurosci.1660-25.2025
Paper 2 demonstrates that visual working memory capacity has a strict limit (plateauing around the same level) for both simple features and objects once long-term memory factors are controlled.
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Lei Y, Lou C, Meng D, Chen L. Tactile object individuation on a fingertip is associated with neural representations in the bilateral inferior parietal lobule.. 2026. https://doi.org/10.1016/j.neuroimage.2026.122026
Paper 4 identifies an object individuation range of approximately four objects that serves as a primary cognitive capacity limit.
Yeganeh N, Makarov I, Unnthorsson R, Kristjánsson Á. Assessing Spatial and Spatiotemporal Tactile Working Memory Using Adaptive Staircase Procedures.. 2026. https://doi.org/10.3390/s26082361
Paper 5 establishes tactile memory capacity thresholds around four to five items, reinforcing the concept of strict perceptual and working memory limits.
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