Swapnaa Jayaraman, Indiana University
Rick O. Gilmore, Penn State
Florian Raudies, HP Research
Supported by NSF BCE-1147440, NSF BCS-1238599, NICHD U01-HD-076595
Rick Gilmore
2016-05-26 14:20:35
Supported by NSF BCE-1147440, NSF BCS-1238599, NICHD U01-HD-076595
(˙x˙y)=1z(−f0x0−fy)(vxvyvz)+1f(xy−(f2+x2)fyf2+y2−xy−fy)(ωxωyωz)
Parameter | Crawling Infant | Walking Infant |
---|---|---|
Eye height | 0.30 m | 0.60 m |
Locomotor speed | 0.33 m/s | 0.61 m/s |
Head tilt | 20 deg | 9 deg |
Geometric Feature | Distance |
---|---|
Side wall | +/- 2 m |
Side wall height | 2.5 m |
Distance of ground plane | 32 m |
Field of view width | 60 deg |
Field of view height | 45 deg |
Type of Locomotion | Ground Plane | Room | Side Wall | Two Walls |
---|---|---|---|---|
Crawling | 14.41 | 14.42 | 14.43 | 14.62 |
Walking | 9.38 | 8.56 | 7.39 | 9.18 |
Country | Females | Males | Age (wks) | Coded video Hrs |
---|---|---|---|---|
India | 17 | 13 | 3-63 | 3.1 (0.5-6.0) |
U.S. | 15 | 19 | 4-62 | 4.6 (0.2-7.6) |
Data & excerpts: http://databrary.org/volume/81
Gilmore, R.O., F. Raudies, and S. Jayaraman. 2015. “What Accounts for Developmental Shifts in Optic Flow Sensitivity?” In 2015 Joint IEEE International Conference on Development and Learning and Epigenetic Robotics (ICDL-EpiRob), 19–25. doi:10.1109/DEVLRN.2015.7345450.
Gilmore, Rick O., C. Hou, M.W. Pettet, and A.M. Norcia. 2007. “Development of Cortical Responses to Optic Flow.” Visual Neuroscience 24 (06): 845–56. doi:10.1017/S0952523807070769.
Gilmore, Rick O., Florian Raudies, Swapnaa Jayaraman, and Linda B. Smith. 2014. “Natural Scene Statistics of Visual Experience Across Development and Culture.” Databrary. doi:10.17910/B7988V.
Hou, C., R. O. Gilmore, M. W. Pettet, and A. M. Norcia. 2009. “Spatio-Temporal Tuning of Coherent Motion Evoked Responses in 4–6 Month Old Infants and Adults.” Vision Research 49 (20): 2509–17. doi:10.1016/j.visres.2009.08.007.
Jouen, François, Jean-Claude Lepecq, Olivier Gapenne, and Bennett I Bertenthal. 2000. “Optic Flow Sensitivity in Neonates.” Infant Behavior and Development 23 (3–4): 271–84. doi:10.1016/S0163-6383(01)00044-3.
Kretch, Kari S., John M. Franchak, and Karen E. Adolph. 2014. “Crawling and Walking Infants See the World Differently.” Child Development 85 (4): 1503–18. doi:10.1111/cdev.12206.
Raudies, F., R.O. Gilmore, K.S. Kretch, J.M. Franchak, and K.E. Adolph. 2012. “Understanding the Development of Motion Processing by Characterizing Optic Flow Experienced by Infants and Their Mothers.” In 2012 IEEE International Conference on Development and Learning and Epigenetic Robotics (ICDL), 1–6. doi:10.1109/DevLrn.2012.6400584.
Raudies, Florian, and Rick O. Gilmore. 2014. “Visual Motion Priors Differ for Infants and Mothers.” Neural Computation 26 (11): 2652–68. doi:10.1162/NECO_a_00645.
Stocker, Alan A., and Eero P. Simoncelli. 2006. “Noise Characteristics and Prior Expectations in Human Visual Speed Perception.” Nature Neuroscience 9 (4): 578–85. doi:10.1038/nn1669.