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Top-down influences on stereoscopic depth-perception.
Nat Neurosci. 1998 Jul; 1(3):254-7.NN

Abstract

The interaction between depth perception and object recognition has important implications for the nature of mental object representations and models of hierarchical organization of visual processing. It is often believed that the computation of depth influences subsequent high-level object recognition processes, and that depth processing is an early vision task that is largely immune to 'top-down' object-specific influences, such as object recognition. Here we present experimental evidence that challenges both these assumptions in the specific context of stereoscopic depth-perception. We have found that observers' recognition of familiar dynamic three-dimensional (3D) objects is unaffected even when the objects' depth structure is scrambled, as long as their two-dimensional (2D) projections are unchanged. Furthermore, the observers seem perceptually unaware of the depth anomalies introduced by scrambling. We attribute the latter result to a top-down recognition-based influence whereby expectations about a familiar object's 3D structure override the true stereoscopic information.

Authors+Show Affiliations

Max-Planck-Institut für biologische Kybernetik, Tübingen, Germany.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

10195152

Citation

Bülthoff, I, et al. "Top-down Influences On Stereoscopic Depth-perception." Nature Neuroscience, vol. 1, no. 3, 1998, pp. 254-7.
Bülthoff I, Bülthoff H, Sinha P. Top-down influences on stereoscopic depth-perception. Nat Neurosci. 1998;1(3):254-7.
Bülthoff, I., Bülthoff, H., & Sinha, P. (1998). Top-down influences on stereoscopic depth-perception. Nature Neuroscience, 1(3), 254-7.
Bülthoff I, Bülthoff H, Sinha P. Top-down Influences On Stereoscopic Depth-perception. Nat Neurosci. 1998;1(3):254-7. PubMed PMID: 10195152.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Top-down influences on stereoscopic depth-perception. AU - Bülthoff,I, AU - Bülthoff,H, AU - Sinha,P, PY - 1998/01/29/received PY - 1998/05/22/accepted PY - 1999/4/9/pubmed PY - 1999/4/9/medline PY - 1999/4/9/entrez SP - 254 EP - 7 JF - Nature neuroscience JO - Nat. Neurosci. VL - 1 IS - 3 N2 - The interaction between depth perception and object recognition has important implications for the nature of mental object representations and models of hierarchical organization of visual processing. It is often believed that the computation of depth influences subsequent high-level object recognition processes, and that depth processing is an early vision task that is largely immune to 'top-down' object-specific influences, such as object recognition. Here we present experimental evidence that challenges both these assumptions in the specific context of stereoscopic depth-perception. We have found that observers' recognition of familiar dynamic three-dimensional (3D) objects is unaffected even when the objects' depth structure is scrambled, as long as their two-dimensional (2D) projections are unchanged. Furthermore, the observers seem perceptually unaware of the depth anomalies introduced by scrambling. We attribute the latter result to a top-down recognition-based influence whereby expectations about a familiar object's 3D structure override the true stereoscopic information. SN - 1097-6256 UR - https://www.unboundmedicine.com/medline/citation/10195152/Top_down_influences_on_stereoscopic_depth_perception_ L2 - http://dx.doi.org/10.1038/699 DB - PRIME DP - Unbound Medicine ER -