{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,2]],"date-time":"2026-05-02T17:03:55Z","timestamp":1777741435708,"version":"3.51.4"},"reference-count":5,"publisher":"SAGE Publications","issue":"6","license":[{"start":{"date-parts":[[2025,11,1]],"date-time":"2025-11-01T00:00:00Z","timestamp":1761955200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,11,1]],"date-time":"2025-11-01T00:00:00Z","timestamp":1761955200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["i-Perception"],"published-print":{"date-parts":[[2025,11]]},"abstract":"<jats:p>\n                    Stereopsis, the visual experience of palpable depth and solidity, is traditionally thought to depend on the congruence or conflict amongst depth cues. But a more speculative theory is that it depends critically on being able to estimate the absolute depths of objects, and their real-world distances from us. We tested this idea in a perception class, using a picture of some plants, a cardboard box with a monocular viewing hole, and a pair of pinhole glasses. Fourteen of 16 students reported\n                    <jats:italic toggle=\"yes\">stronger<\/jats:italic>\n                    stereopsis with pinhole viewing, contrary to the predictions of the absolute depth theory, but consistent with a traditional account. This classroom exercise offers an empirical challenge for the absolute depth theory, and a vivid teaching tool for the paradoxes of pictorial depth perception.\n                  <\/jats:p>","DOI":"10.1177\/20416695251400522","type":"journal-article","created":{"date-parts":[[2025,12,9]],"date-time":"2025-12-09T16:14:21Z","timestamp":1765296861000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["A classroom-based test of the absolute depth theory of stereopsis"],"prefix":"10.1177","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7615-6699","authenticated-orcid":false,"given":"Robert D.","family":"McIntosh","sequence":"first","affiliation":[{"name":"University of Edinburgh"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2025,12,9]]},"reference":[{"key":"e_1_3_3_2_1","doi-asserted-by":"publisher","DOI":"10.1364\/JOSA.10.000137"},{"key":"e_1_3_3_3_1","doi-asserted-by":"publisher","DOI":"10.1177\/2041669517731411"},{"key":"e_1_3_3_4_1","doi-asserted-by":"publisher","DOI":"10.1037\/rev0000131"},{"key":"e_1_3_3_5_1","doi-asserted-by":"publisher","DOI":"10.2307\/1417214"},{"key":"e_1_3_3_6_1","doi-asserted-by":"publisher","DOI":"10.1177\/0956797613477867"}],"container-title":["i-Perception"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/20416695251400522","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/20416695251400522","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/20416695251400522","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T11:29:10Z","timestamp":1777462150000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/20416695251400522"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,11]]},"references-count":5,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2025,11]]}},"alternative-id":["10.1177\/20416695251400522"],"URL":"https:\/\/doi.org\/10.1177\/20416695251400522","relation":{},"ISSN":["2041-6695","2041-6695"],"issn-type":[{"value":"2041-6695","type":"print"},{"value":"2041-6695","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,11]]},"article-number":"20416695251400522"}}