Weak experiences sufficient for creating illusory figures that influence perception of actual lines.

PLoS One · 2017 · PMC5395153 · PMID 28419116

Europe PMC DOI

hedged sentences

0.0010

closest p · 0.0× alpha

0.0010

boldest claim

The sentences

clearly significantp < .001actually significant

For PAS 2–4 there was a clearly significant effect of illusion (for all tests, Chi 2 (3) > 51.6, p < .001).

also in 343 other papers

highly significantno p-value reported

In summary, this experiment used a wide range of stimulus durations (16.7–200 ms) and showed a highly significant effect of illusion inducer configuration (illusion vs. control) on line length judgments.

also in 110,604 other papers

Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.