Publication: Stereo vision requires an explicit encoding of vertical disparity.
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2009
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Vertical disparities influence the perception of 3D depth, but little is known about the neuronal mechanisms underlying this. One possibility is that these perceptual effects are mediated by an explicit encoding of two-dimensional disparity. Recently, J. C. A. Read and B. G. Cumming (2006) pointed out that current psychophysical and physiological evidence is consistent with a much more economical one-dimensional encoding. Almost all relevant information about vertical disparity could in theory be extracted from the activity of purely horizontal-disparity sensors. Read and Cumming demonstrated that such a 1D system would experience Ogle's induced effect, a famous illusion produced by vertical disparity. Here, we test whether the brain employs this 1D encoding, using a version of the induced effect stimulus that simulates the viewing geometry at infinity and thus removes the cues which are otherwise available to the 1D model. This condition was compared to the standard induced effect stimulus, presented on a frontoparallel screen at finite viewing distance. We show that the induced effects experienced under the two conditions are indistinguishable. This rules out the 1D model proposed by Read and Cumming and shows that vertical disparity, including sign, must be explicitly encoded across the visual field.
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Agresti, A., & Coull, B. (1998). Approximate is better than “exact” for interval estimation of binomial proportions. American Statistician, 52, 119–126.
Allison, R. S., Howard, I. P., Rogers, B. J., & Bridge, H. (1998). Temporal aspects of slant and inclination perception. Perception, 27, 1287–1304. [PubMed]
Backus, B. T., Banks, M. S., van Ee, R., & Crowell, J. A. (1999). Horizontal and vertical disparity, eye position, and stereoscopic slant perception. Vision Research, 39, 1143–1170. [PubMed]
Banks, M. S., Hooge, I. T., & Backus, B. T. (2001). Perceiving slant about a horizontal axis from stereopsis. Journal of Vision, 1(2):1, 55–79, http:// journalofvision.org/1/2/1/, doi:10.1167/1.2.1. [PubMed] [Article]
Busettini, C., Fitzgibbon, E. J., & Miles, F. A. (2001). Short-latency disparity vergence in humans. Journal of Neurophysiology, 85, 1129–1152. [PubMed] [Article]
Cumming, B. G. (2002). An unexpected specialization for horizontal disparity in primate primary visual cortex. Nature, 418, 633–636. [PubMed]
Cumming, B. G., & DeAngelis, G. C. (2001). The physiology of stereopsis. Annual Review of Neuroscience, 24, 203–238. [PubMed]
Dodgson, N. (2004). Variation and extrema of human interpupillary distance. Paper presented at the Proceedings of SPIE, San Jose, California.
Durand, J. B., Celebrini, S., & Trotter, Y. (2007). Neural bases of stereopsis across visual field of the alert macaque monkey. Cerebral Cortex, 17, 1260–1273. [PubMed] [Article]
Durand, J. B., Zhu, S., Celebrini, S., & Trotter, Y. (2002). Neurons in parafoveal areas V1 and V2 encode vertical and horizontal disparities. Journal of Neurophysiology, 88, 2874–2879. [PubMed] [Article]
Gonzalez, F., Justo, M. S., Bermudez, M. A., & Perez, R. (2003). Sensitivity to horizontal and vertical disparity and orientation preference in areas V1 and V2 of the monkey. Neuroreport, 14, 829–832. [PubMed]
Gonzalez, F., Relova, J. L., Perez, R., Acun˜a, C., & Alonso, J. M. (1993). Cell responses to vertical and horizontal retinal disparities in the monkey visual cortex. Neuroscience Letters, 160, 167–170. [PubMed]
Hartley, R., & Zisserman, A. (2000). Multiple view geometry in computer vision. Cambridge, UK: Cambridge University Press. Helmholtz, H. v. (1925). Treatise on physiological optics. Rochester, NY: Optical Society of America. Figure A1. As Figure 4, showing distances and angles used in the derivation of Equation 1. Journal of Vision (2009) 9(4):3, 1–13
Serrano-Pedraza & Read 12 Downloaded From: http://jov.arvojournals.org/pdfaccess.ashx?url=/data/Journals/JOV/933534/ on 04/11/2016 Hibbard, P. B. (2007). A statistical model of binocular disparity. Visual Cognition, 15, 149–165.
Kaneko, H., & Howard, I. P. (1997). Spatial limitation of vertical-size disparity processing. Vision Research, 37, 2871–2878. [PubMed]
Longuet-Higgins, H. C. (1982). The role of the vertical dimension in stereoscopic vision. Perception, 11, 377–386. [PubMed]
Maunsell, J. H., & Van Essen, D. C. (1983). Functional properties of neurons in middle temporal visual area of the macaque monkey: II. Binocular interactions and sensitivity to binocular disparity. Journal of Neurophysiology, 49, 1148–1167. [PubMed]
Ogle, K. N. (1938). Induced size effect I: A new phenomenon in binocular vision associated with the relative size of the images in the two eyes. Archives of Ophthalmology, 20, 604.
Ogle, K. N. (1964). Researches in binocular vision. New York: Hafner.
Parker, A., Cumming, B., & Dodd, J. (2000). Binocular neurons and the perception of depth. In M. S. Gazzaniga (Ed.), The new cognitive neurosciences (pp. 263–277). Cambridge, MA: The MIT Press.
Poggio, G. E. (1995). Mechanisms of stereopsis in monkey visual cortex. Cerebral Cortex, 5, 193–204. [PubMed]
Qian, N., & Zhu, Y. (1997). Physiological computation of binocular disparity. Vision Research, 37, 1811–1827. [PubMed]
Read, J. C. A., & Cumming, B. G. (2004). Understanding the cortical specialization for horizontal disparity. Neural Computation, 16, 1983–2020. [PubMed] [Article]
Read, J. C. A., & Cumming, B. G. (2006). Does depth perception require vertical-disparity detectors? Journal of Vision, 6(12):1, 1323–1355, http://journalofvision. org/6/12/1/, doi:10.1167/6.12.1. [PubMed] [Article]
Rogers, B. J., & Bradshaw, M. F. (1993). Vertical disparities, differential perspective and binocular stereopsis. Nature, 361, 253–255. [PubMed]
Stevenson, S. B., & Schor, C. M. (1997). Human stereo matching is not restricted to epipolar lines. Vision Research, 37, 2717–2723. [PubMed]
Trotter, Y., Celebrini, S., & Durand, J. B. (2004). Evidence for implication of primate area V1 in neural 3-D spatial localization processing. The Journal of Physiology, 98, 125–134. [PubMed]
Westheimer, G. (1984). Sensitivity for vertical retinal image differences. Nature, 307, 632–634. [PubMed]
Wheatstone, C. (1838). On some remarkable, and hitherto unobserved, Phenomena of Binocular Vision. Philosophical Transactions of the Royal Society of London Series B: Biological Sciences, 128, 371–394.
Wichmann, F. A., & Hill, N. J. (2001). The psychometric function: II. Bootstrap-based confidence intervals and sampling. Perception & Psychophysics, 63, 1314–1329. [PubMed]