Eye movement during skill acquisition: More evidence for the information-reduction hypothesis.
DOI: 10.1037/0278-7393.25.1.172
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Summary
This paper investigates the "information-reduction hypothesis," which posits that skill acquisition involves learning to distinguish between task-relevant and task-redundant information, thereby limiting processing to only what is necessary. Building on prior work by Haider and Frensch (1996), the authors conducted two experiments to test the generalizability of this hypothesis and determine whether information reduction occurs at a perceptual or conceptual level. The study aimed to address whether previous findings were artifacts of specific task parameters, such as the consistent positioning of relevant information. In Experiment 1, 107 participants performed an alphabet verification task, judging whether strings like "E [4] J K L" followed alphabetical order. The digit indicated skipped letters, making the initial triplet task-relevant and subsequent letters redundant. The experiment manipulated the position of the relevant triplet (beginning, end, or mixed) and its consistency across trials. Results showed that the degree of information reduction, measured by the decline in reaction time sensitivity to string length, was unaffected by the position of relevant information and only slightly affected by consistency. This suggested that information reduction is robust and not dependent on fixed spatial cues. Experiment 2 utilized eye-tracking to directly observe processing mechanisms. Participants again verified alphabetic strings while their eye movements were recorded. The results indicated that participants ignored task-redundant information at a perceptual level rather than a later conceptual level. This finding supports the view that with practice, individuals actively filter out irrelevant visual input before it undergoes deeper cognitive processing. The study concludes that existing theories of skill acquisition must incorporate mechanisms that account for the practice-related increase in selective information use. The findings provide strong evidence for the information-reduction hypothesis, demonstrating that learners become increasingly efficient by perceptually ignoring redundant data. This implies that expertise is characterized not just by faster processing of relevant information, but by a fundamental shift in attentional selection that minimizes cognitive load. The robustness of this effect across different positioning conditions suggests that information reduction is a general feature of cognitive skill acquisition, driven by both implicit and explicit learning processes.
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| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | author_sweep | — | — | 2 | 2026-05-28 |
| archive | success | canonical_url | — | — | 7 | 2026-06-09 |
| extract | success | cached | — | — | 2 | 2026-06-10 |
| clean | success | clean | — | — | 1 | 2026-06-04 |
| chunk | success | chunk | — | — | 1 | 2026-06-04 |
| embed | success | embed | Qwen/Qwen3-Embedding-8B | — | 1 | 2026-06-04 |
| enrich | success | — | — | — | 1 | 2026-05-28 |
| promote | success | — | — | — | 1 | 2026-06-04 |
| summarize | success | llm | qwen3.6-27b-prismaquant | summ-v5 | 1 | 2026-06-10 |
| tag | success | vector_similarity | — | — | 15 | 2026-06-11 |
| verify | success | — | — | — | 1 | 2026-06-10 |
Summary generated by qwen3.6-27b-prismaquant on 2026-06-10; verification: verified.
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