What question did this study set out to answer?

To investigate whether ensemble size adaptation occurs for all perceptually encoded properties, focusing on average and cumulative size.

March 21, 2026Psychonomic Bulletin & ReviewOpen Access

Ensemble size perception as a case study of the bounds of adaptation

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Authors

SCSam ClarkeSamarkand State University named after Sharof Rashidov RORachel OlugbusiUniversity of North Carolina at Chapel Hill SYSami R. Yousif

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Implication

Experimental tests reveal that adaptation occurs for cumulative size but not for average size of dot arrays, suggesting limits on perceptual adaptation.

Key Points

To investigate whether ensemble size adaptation occurs for all perceptually encoded properties, focusing on average and cumulative size.
Conducted four experiments to test adaptation effects in observers.
Tested participants' judgment of average and cumulative dot size after exposure to varying displays.
Controlled for potential confounding variables like brightness.
Robust adaptation was observed for cumulative size but not for average size in all experiments.
Adaptation effects were consistent regardless of task instructions.
Findings challenge previous assumptions about universal adaptation in perception.

Cite This Study

Clarke et al. (2026) studied this question.

synapsesocial.com/papers/69be38a46e48c4981c67929f https://doi.org/10.3758/s13423-026-02895-7

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Implication

Experimental tests reveal that adaptation occurs for cumulative size but not for average size of dot arrays, suggesting limits on perceptual adaptation.

Ensemble size perception as a case study of the bounds of adaptation

Discussion

Member takes

Implication

Key Points

Cite This Study

Ensemble size perception as a case study of the bounds of adaptation

Discussion

Member takes

Implication

Key Points

Cite This Study

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