Publications

Published Papers

Bu, R., Xiao, F., Lovell, P. G., Wang, J., & Shi, H. (2022). Partial masquerading and background matching in two Asian box turtle species (Cuora spp.). Asian Herpetological Research, 13(3), 168-179.

Bu, R., Xiao, F., Lovell, P. G., Ye, Z., & Shi, H. (2020). Structural and colored disruption as camouflage strategies in two sympatric Asian box turtle species (Cuora spp.). Global Ecology and Conservation, 24, e01361.

Halpin, C. G., Penacchio, O., Lovell, P. G., Cuthill, I. C., Harris, J. M., Skelhorn, J., & Rowe, C. (2020). Pattern contrast influences wariness in naïve predators towards aposematic patterns. Scientific reports, 10(1), 1-8.

Sharman, R. J., Moncrieff, S. J., & Lovell, P. G. (2018). Dissociating the effect of disruptive colouration on localisation and identification of camouflaged targets. Scientific reports, 8(1), 1-6.

Penacchio, O., Lovell, P. G., & Harris, J. M. (2018). Is countershading camouflage robust to lighting change due to weather?. Royal Society open science, 5(2), 170801.

Penacchio, O., Harris, J. M., & Lovell, P. G. (2017). Establishing the behavioural limits for countershaded camouflage. Scientific reports, 7(1), 1-11.

Egan, J., Sharman, R. J., Scott-Brown, K. C., & Lovell, P. G. (2016). Edge enhancement improves disruptive camouflage by emphasising false edges and creating pictorial relief. Scientific reports, 6(1), 1-9.

Cuthill, I. C., Sanghera, N. S., Penacchio, O., Lovell, P. G., Ruxton, G. D., & Harris, J. M. (2016). Optimizing countershading camouflage. Proceedings of the National Academy of Sciences, 113(46), 13093-13097.

Brulez, K., Mikšík, I., Cooney, C. R., Hauber, M. E., Lovell, P. G., Maurer, G., . . . Cassey, P. (2016). Eggshell pigment composition covaries with phylogeny but not with life history or with nesting ecology traits of British passerines. Ecology and Evolution.

Duval, C., Cassey, P., Lovell, P. G., Miksik, I., Reynolds, S. J., & Spencer, K. A. (2016). Maternal influence on eggshell maculation: implications for cryptic camouflaged eggs. Journal of Ornithology, 157(1), 303-310. doi:10.1007/s10336-015-1278-2 summary

Burriss, R. P., Troscianko, J., Lovell, P. G., Fulford, A. J., Stevens, M., Quigley, R., . . . Rowland, H. M. (2015). Changes in Women’s Facial Skin Color Over the Ovulatory Cycle are Not Detectable by the Human Visual System. PlosOne.

Penacchio, O., Cuthill, I. C., Lovell, P. G., Ruxton, G. D., & Harris, J. M. (2015). Orientation to the sun by animals and its interaction with crypsis. Functional Ecology, 29(9), 1165-1177. doi:10.1111/1365-2435.12481 summary

Penacchio, O., Lovell, P. G., Cuthill, I. C., Ruxton, G. D., & Harris, J. M. (2015). Three-Dimensional Camouflage: Exploiting Photons to Conceal Form. American Naturalist, 186(4), 553-563. doi:10.1086/682570 summary

Duval, C., Cassey, P., Lovell, P. G., Mikšík, I., Reynolds, S. J., & Spencer, K. A. (2013). Eggshell appearance does not signal maternal corticosterone exposure in Japanese quail: an experimental study with brown-spotted eggs. PloS one, 8(12), e80485. Retrieved from http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3848978/pdf/pone.0080485.pdf

Lovell, P. G., Ruxton, G. D., Langridge, K. V., & Spencer, K. A. (2013). Egg-laying substrate selection for optimal camouflage by quail. Current Biolology, 23(3), 260-264. doi:10.1016/j.cub.2012.12.031 summary

Cassey, P., Thomas, G. H., Portugal, S. J., Maurer, G., Hauber, M. E., GRIM, T., . . . MIKŠÍK, I. (2012). Why are birds' eggs colourful? Eggshell pigments co‐vary with life‐history and nesting ecology among British breeding non‐passerine birds. Biological Journal of the Linnean Society, 106(3), 657-672.

Cassey, P., Maurer, G., Lovell, P. G., & Hanley, D. (2011). Conspicuous eggs and colourful hypotheses: testing the role of multiple influences on avian eggshell appearance. Avian Biology Research, 4(4), 185-195. doi:10.3184/175815511x13207699868421 summary

Metzler-Baddeley, C., Baddeley, R. J., Lovell, P. G., Laffan, A., & Jones, R. W. (2010). Visual impairments in dementia with Lewy bodies and posterior cortical atrophy. Neuropsychology, 24(1), 35-48. doi:10.1037/a0016834 summary

To, M. P., Lovell, P. G., Troscianko, T., & Tolhurst, D. J. (2010). Perception of suprathreshold naturalistic changes in colored natural images. Journal of Vision, 10(4), 12 11-22. doi:10.1167/10.4.12 summary

Tolhurst, D. J., To, M. P. S., Chirimuuta, M., Troscianko, T., Chua, P. Y., & Lovell, P. G. (2010). Magnitude of Perceived Change in Natural Images May Be Linearly Proportional to Differences in Neuronal Firing Rates. Seeing and Perceiving, 23(4), 349-372. doi:10.1163/187847510x532676 summary

Giachritsis, C. D., Wing, A. M., & Lovell, P. G. (2009). The role of spatial integration in the perception of surface orientation with active touch. Attention Perception Psychophysics, 71(7), 1628-1640. doi:10.3758/APP.71.7.1628 summary

Lovell, P. G., Gilchrist, I. D., Tolhurst, D. J., & Troscianko, T. (2009). Search for gross illumination discrepancies in images of natural objects. Journal of Vision, 9(1), 37 31-14. doi:10.1167/9.1.37 summary

Troscianko, T., Benton, C. P., Lovell, P. G., Tolhurst, D. J., & Pizlo, Z. (2009). Camouflage and visual perception. Philos Trans R Soc Lond B Biol Sci, 364(1516), 449-461. doi:10.1098/rstb.2008.0218 summary

To, M., Lovell, P. G., Troscianko, T., & Tolhurst, D. J. (2008). Summation of perceptual cues in natural visual scenes. Procedures of the Royal Society B: Biological Sciences, 275(1649), 2299-2308. doi:10.1098/rspb.2008.0692 summary

To, M., Lovell, P. G., Troscianko, T., & Tolhurst, D. (2007). Minkowski summation of cues in complex visual discriminations using natural scene stimuli. Journal of Vision, 7(9), 968-968.

Lovell, P. G., Párraga, C. A., Troscianko, T., Ripamonti, C., & Tolhurst, D. J. (2006). Evaluation of a multiscale color model for visual difference prediction. ACM Transactions on Applied Perception (TAP), 3(3), 155-178.

Lovell, P. G., Tolhurst, D. J., Parraga, C. A., Baddeley, R., Leonards, U., Troscianko, J., & Troscianko, T. (2005). Stability of the color-opponent signals under changes of illuminant in natural scenes. J Opt Soc Am A Opt Image Sci Vis, 22(10), 2060-2071. Retrieved from http://www.ncbi.nlm.nih.gov/pubmed/16277277 summary

Spencer, K. A., Wimpenny, J. H., Buchanan, K. L., Lovell, P. G., Goldsmith, A. R., & Catchpole, C. K. (2005). Developmental stress affects the attractiveness of male song and female choice in the zebra finch (Taeniopygia guttata). Behavioral Ecology and Sociobiology, 58(4), 423-428. doi:10.1007/s00265-005-0927-5 summary

Uhlhaas, P. J., Silverstein, S. M., Phillips, W. A., & Lovell, P. G. (2004). Evidence for impaired visual context processing in schizotypy with thought disorder. Schizophrenia research, 68(2-3), 249-260. doi:10.1016/S0920-9964(03)00184-1 summary

Penacchio, O., Lovell, P. G., Sanghera, S., Cuthill, I. C., Ruxton, G., & Harris, J. M. (2015). Countershading camouflage and the efficiency of visual search. Paper presented at the Perception.

Porter, G., Stimpson, L., Tales, A., & Lovell, P. G. (2009). Object recognition is slowed by shadows of inconsistent orientation. Paper presented at the Perception.

To, M., Lovell, P. G., Troscianko, T., & Tolhurst, D. J. (2007). Summation of suprathreshold cues in complex visual discriminations using natural scene stimuli. Paper presented at the Perception.

Troscianko, T., To, M., Tolhurst, D. J., & Lovell, P. G. (2007). Three types of processing for shadows: Ignore, select, or suppress? Paper presented at the Perception.

Gilmore, M., Jones, C., Haynes, A., Tolhurst, D., To, M., Troscianko, T., . . . Pickavance, K. (2006). Use of a vision model to quantify the significance of factors effecting target conspicuity. Paper presented at the Defense and Security Symposium.

Tolhurst, D. J., Ripamonti, C., Párraga, C. A., Lovell, P. G., & Troscianko, T. (2005). A multiresolution color model for visual difference prediction. Paper presented at the Proceedings of the 2nd symposium on Applied perception in graphics and visualization.

Conference Abstracts

Lovell, P. G., Egan, J., Scott-Brown, K., & Sharman, R. J. (2015). Exploring the role of enhanced-edges in disruptive camouflage. Paper presented at the Perception.

Lovell, P. G., & Scott-Brown, K. (2014). Are shadows only coarsely processed? Exploring depth discrimination with cast shadow cue conflicts across spatial frequency. Paper presented at the i-Perception.

Lovell, P. G., & Scott-Brown, K. C. (2014). Are cast-shadows coarsely processed? Using cue-conflict stimuli to explore perceptual weightings. Paper presented at the i-Perception 5 (4).

Penacchio, O., Lovell, P. G., Ruxton, G. D., Cuthill, I. C., & Harris, J. M. (2014). Countershading camouflage: exploiting photons to break shape-from-shading inference. Paper presented at the i-Perception.

Spencer, K. A., Duval, C., & Lovell, P. G. (2014). Egg camouflage is maximised by matching chromatic but not textural cues in the Japanese quail. Paper presented at the i-Perception 5 (4).

Penacchio, O., Lovell, P. G., Ruxton, G., Cuthill, I., & Harris, J. M. (2013). Countershading camouflage: using light for concealing 3D information. Paper presented at the Perception.

Harris, J. M., Lovell, P. G., Harding, G., & Bloj, M. (2012). Learning to use the lightfield for shape and lightness perception. Paper presented at the Perception.

Lovell, P. G., Bloj, M., & Harris, J. M. (2012). Optimal integration of shading and binocular disparity for depth perception. Paper presented at the Journal of Vision. summary

Lovell, P. G., Bloj, M., & Harris, J. M. (2012). Efficient cue-combination even at the temporal limits of perception. Paper presented at the i-Perception.

Lovell, P. G., Bloj, M., & Harris, J. M. (2012). Size, shading and disparity: studying cue combination using visual search. Paper presented at the Journal of Vision.

Lovell, P. G., Bloj, M., & Harris, J. M. (2012). Visual search in depth: cue combination during natural behaviour. Paper presented at the Perception.

Lovell, P. G., Spencer, L. J., Bloj, M., & Harris, J. M. (2012). Learning a 3-D Visual Light Field: Effects of Exploration on Lightness Constancy. Paper presented at the Predicting Perceptions: Proceedings of the 3rd International Conference on Appearance.

Spencer, K. A., Langridge, K., Ruxton, G. D., & Lovell, P. G. (2012). Understanding bird egg patterning: assessing visual camouflage using visual difference and edge-detection models. Paper presented at the Perception.

Spencer, L. J., Lovell, P. G., & Harris, J. M. (2012). Binocular vision, training and lightness constancy. Paper presented at the i-Perception.

To, M. P. S., Lovell, P. G., Troscianko, T., Gilchrist, I. D., Benton, C. P., & Tolhurst, D. J. (2012). Modelling human discrimination of moving images. Paper presented at the Perception.

Lovell, P., Bloj, M., & Harris, J. (2011). How do reliability and timing influence cue-combinations for shading and stereo-disparity? Paper presented at the i-Perception.

Lovell, P. G., Bloj, M., & Harris, J. (2011). Critical timing in combinations of stereo-disparity and shading. Paper presented at the Journal of Vision.

Cristino, F., Lovell, P. G., Gilchrist, I. D., Tolhurst, D. J., Troscianko, T., & Benton, C. P. (2010). Spatiotemporal chromatic statistics of the natural world. Paper presented at the Journal of Vision.

Harris, J. M., Bloj, M., & Lovell, P. G. (2010). Interactions between shading and disparity for depth perception. Paper presented at the Perception (ECVP abstract).

Lovell, P. G., Benton, C., Gilchrist, I. D., Tolhurst, D. J., & Troscianco, T. (2009). Characterising the spatio-temporo-chromatic (STC) properties of natural scenes. Paper presented at the Perception.

Metzler-Baddeley, C., Baddeley, R. J., Lovell, P. G., & Jones, R. W. (2009). Visual impairment in posterior cortical atrophy and dementia with lewy bodies. Paper presented at the Alzheimer's & Dementia.

To, M. P., Gilchrist, I. D., Troscianko, T., Lovell, P. G., & Tolhurst, D. J. (2009). Crowding effects in central and peripheral vision when viewing natural scenes. Paper presented at the Journal of Vision.

Lovell, P. G., Gilchrist, I. D., Tolhurst, D. J., To, M., & Troscianko, T. (2008). Predicting search efficiency with a low-level visual difference model. Paper presented at the Journal of Vision.

Lovell, P. G., Gilchrist, I. D., Tolhurst, D. J., To, M., & Troscianko, T. (2008). Search with naturalistic stimuli: using a low-level visual difference model to predict search efficiency. Paper presented at the Perception (ECVP abstract).

Lovell, P. G., Gilchrist, I. D., Tolhurst, D. J., & Troscianko, T. (2007). Efficient search for gross illumination discrepancies in upright but not inverted images of natural objects. Paper presented at the Perception.

Lovell, P. G., Tolhurst, D. J., To, M., & Troscianko, T. (2007). Rapid search for gross illumination discrepancies in upright but not inverted images. Paper presented at the Journal of Vision.

To, P., Lovell, P. G., Troscianko, P., & Tolhurst, D. J. (2007). Visual-difference predictor models for human suprathreshold ratings of differences between natural images: Complex-cell models outperform simple-cell models. Paper presented at the Perception (ECVP abstract).

Lovell, P. G., To, M., Tolhurst, D. J., & Troscianko, T. (2006). Observer ratings for natural scenes under varying illumination: Separating high-level and low-level processes by inversion and a low-level visual-difference predicting model. Paper presented at the Perception.

Lovell, P. G., Tolhurst, D. J., Ripamonti, C., To, M., & Troscianko, T. (2006). What makes two images look different from each other? Paper presented at the Journal of Vision.

To, M., Lovell, P. G., Troscianko, T., & Tolhurst, D. J. (2006). Ratings of differences between pairs of natural images are primarily based on low-level cues. Paper presented at the Perception.

Troscianko, T., Lovell, P. G., Parraga, C. A., Baddeley, R., & Tolhurst, D. J. (2006). Colour vision and illumination noise in primates and birds. Paper presented at the Perception.

Lovell, P. G. (2005). Manipulating contour smoothness: Evidence that the association-field model underlies contour integration in the periphery. Paper presented at the Spatial Vision.

Lovell, P. G., Tolhurst, D. J., Parraga, C. A., Baddeley, R. J., Leonards, U., Troscianko, J., & Troscianko, T. (2005). Opponent channel responses to changes in the illuminant of natural scenes for primates and birds. Paper presented at the Perception.

Lovell, P. G., Troscianko, T., & Parraga, C. A. (2005). Distance judgments based on Rayleigh scattering: The detection of colour changes with distance in blue-yellow opponent channels. Paper presented at the Perception.

Parraga, C. A., Lovell, P. G., Troscianko, T., & Tolhurst, D. J. (2005). Modelling red-green and blue-yellow colour vision. Paper presented at the Perception.

Lovell, P. G. (2004). Manipulating contour smoothness: Evidence that the association-field model underlies contour integration in the periphery. Paper presented at the Perception.

Tolhurst, D. J., Ripamonti, C., Rowbottom, C. N., Lovell, P. G., Párraga, C. A., & Troscianko, T. (2004). Psychophysical discrimination of natural scenes: Thresholds and subjective ratings. Paper presented at the Perception.

Troscianko, T., Parraga, C. A., Lovell, P. G., Tolhurst, D., Baddeley, R., & Leonards, U. (2004). Natural illumination, shadows, and primate colour vision. Paper presented at the Perception.