Trichur Raman Vidyasagar - Publications

University of Melbourne, Parkville, Victoria, Australia 
visual system, neurophysiology, attention, psychophysics, dyslexia

84 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.


Year Citation  Score
2021 Nguyen BN, Kolbe SC, Verghese A, Nearchou C, McKendrick AM, Egan GF, Vidyasagar TR. Visual search efficiency and functional visual cortical size in children with and without dyslexia. Neuropsychologia. 107819. PMID 33684399 DOI: 10.1016/j.neuropsychologia.2021.107819  0.36
2021 Malavita MS, Vidyasagar TR, McKendrick AM. The effect of aging on the eccentricity dependency of orientation anisotropy of perceptual surround suppression. Journal of Vision. 21: 13. PMID 33502438 DOI: 10.1167/jov.21.1.13  0.36
2019 Mohan YS, Jayakumar J, Lloyd EKJ, Levichkina E, Vidyasagar TR. Diversity of Feature Selectivity in Macaque Visual Cortex Arising from a Limited Number of Broadly Tuned Input Channels. Cerebral Cortex (New York, N.Y. : 1991). PMID 31220214 DOI: 10.1093/cercor/bhz063  1
2019 Vidyasagar TR, Levichkina E. An Integrated Neuronal Model of Claustral Function in Timing the Synchrony Between Cortical Areas. Frontiers in Neural Circuits. 13: 3. PMID 30804759 DOI: 10.3389/fncir.2019.00003  1
2018 Malavita MS, Vidyasagar TR, McKendrick AM. Eccentricity dependence of orientation anisotropy of surround suppression of contrast-detection threshold. Journal of Vision. 18: 5. PMID 30029269 DOI: 10.1167/18.7.5  0.36
2017 Levichkina E, Saalmann YB, Vidyasagar TR. Coding of spatial attention priorities and object features in the macaque lateral intraparietal cortex. Physiological Reports. 5. PMID 28270589 DOI: 10.14814/phy2.13136  1
2017 Malavita MS, Vidyasagar TR, McKendrick AM. The Effect of Aging and Attention on Visual Crowding and Surround Suppression of Perceived Contrast Threshold. Investigative Ophthalmology & Visual Science. 58: 860-867. PMID 28159973 DOI: 10.1167/iovs.16-20632  0.36
2015 Vidyasagar TR, Eysel UT. Origins of feature selectivities and maps in the mammalian primary visual cortex. Trends in Neurosciences. 38: 475-85. PMID 26209463 DOI: 10.1016/j.tins.2015.06.003  1
2015 Viswanathan S, Jayakumar J, Vidyasagar TR. Contrast invariance of orientation tuning in the lateral geniculate nucleus of the feline visual system. The European Journal of Neuroscience. 42: 2250-7. PMID 26080026 DOI: 10.1111/ejn.12991  1
2015 Vidyasagar TR, Jayakumar J, Lloyd E, Levichkina EV. Subcortical orientation biases explain orientation selectivity of visual cortical cells. Physiological Reports. 3. PMID 25855249 DOI: 10.14814/phy2.12374  1
2015 Viswanathan S, Jayakumar J, Vidyasagar TR. Contrast invariance of orientation tuning in the lateral geniculate nucleus of the feline visual system European Journal of Neuroscience. DOI: 10.1111/ejn.12991  1
2015 Vidyasagar TR, Eysel UT. Origins of feature selectivities and maps in the mammalian primary visual cortex Trends in Neurosciences. 38: 475-485. DOI: 10.1016/j.tins.2015.06.003  1
2014 Vidyasagar TR. Eyeing visual pathways in dyslexia. Science (New York, N.Y.). 345: 524. PMID 25082692 DOI: 10.1126/science.345.6196.524-a  1
2014 Verghese A, Kolbe SC, Anderson AJ, Egan GF, Vidyasagar TR. Functional size of human visual area V1: a neural correlate of top-down attention. Neuroimage. 93: 47-52. PMID 24583254 DOI: 10.1016/j.neuroimage.2014.02.023  1
2013 Vidyasagar TR. Reading into neuronal oscillations in the visual system: implications for developmental dyslexia. Frontiers in Human Neuroscience. 7: 811. PMID 24348361 DOI: 10.3389/fnhum.2013.00811  1
2013 Verghese A, Anderson AJ, Vidyasagar TR. Space, color, and direction of movement: how do they affect attention? Journal of Vision. 13. PMID 23873673 DOI: 10.1167/13.8.20  1
2013 Maloney RT, Jayakumar J, Levichkina EV, Pigarev IN, Vidyasagar TR. Information processing bottlenecks in macaque posterior parietal cortex: an attentional blink? Experimental Brain Research. 228: 365-76. PMID 23715717 DOI: 10.1007/s00221-013-3569-2  1
2013 Jayakumar J, Dreher B, Vidyasagar TR. Tracking blue cone signals in the primate brain. Clinical & Experimental Optometry. 96: 259-66. PMID 23186138 DOI: 10.1111/j.1444-0938.2012.00819.x  1
2013 Jayakumar J, Roy S, Dreher B, Martin PR, Vidyasagar TR. Multiple pathways carry signals from short-wavelength-sensitive ('blue') cones to the middle temporal area of the macaque. The Journal of Physiology. 591: 339-52. PMID 23070701 DOI: 10.1113/jphysiol.2012.241117  1
2012 Jayakumar J, Hu D, Vidyasagar TR. Sparseness of coding in area 17 of the cat visual cortex: a comparison between pinwheel centres and orientation domains. Neuroscience. 225: 55-64. PMID 22963796 DOI: 10.1016/j.neuroscience.2012.08.064  1
2012 Vidyasagar TR. Aetiology of Dyslexia: A Visual Perspective on a Phonological Marker Visual Aspects of Dyslexia. DOI: 10.1093/acprof:oso/9780199589814.003.0010  1
2011 Kuhlmann L, Vidyasagar TR. A computational study of how orientation bias in the lateral geniculate nucleus can give rise to orientation selectivity in primary visual cortex. Frontiers in Systems Neuroscience. 5: 81. PMID 22013414 DOI: 10.3389/fnsys.2011.00081  1
2011 Viswanathan S, Jayakumar J, Vidyasagar TR. Role of feedforward geniculate inputs in the generation of orientation selectivity in the cat's primary visual cortex. The Journal of Physiology. 589: 2349-61. PMID 21486788 DOI: 10.1113/jphysiol.2010.202317  1
2010 Vidyasagar TR, Pammer K. Dyslexia: a deficit in visuo-spatial attention, not in phonological processing. Trends in Cognitive Sciences. 14: 57-63. PMID 20080053 DOI: 10.1016/j.tics.2009.12.003  1
2010 Vidyasagar TR, Pammer K. Letter-order encoding is both bottom-up and top-down: Response to Whitney Trends in Cognitive Sciences. 14: 238-239. DOI: 10.1016/j.tics.2010.03.008  1
2009 Roy S, Jayakumar J, Martin PR, Dreher B, Saalmann YB, Hu D, Vidyasagar TR. Segregation of short-wavelength-sensitive (S) cone signals in the macaque dorsal lateral geniculate nucleus. The European Journal of Neuroscience. 30: 1517-26. PMID 19821840 DOI: 10.1111/j.1460-9568.2009.06939.x  1
2009 Pigarev IN, Saalmann YB, Vidyasagar TR. A minimally invasive and reversible system for chronic recordings from multiple brain sites in macaque monkeys. Journal of Neuroscience Methods. 181: 151-8. PMID 19422856 DOI: 10.1016/j.jneumeth.2009.04.024  1
2007 Saalmann YB, Pigarev IN, Vidyasagar TR. Neural mechanisms of visual attention: how top-down feedback highlights relevant locations. Science (New York, N.Y.). 316: 1612-5. PMID 17569863 DOI: 10.1126/science.1139140  1
2007 Vidyasagar TR, Pigarev IN. Modulation of neuronal responses in macaque primary visual cortex in a memory task. The European Journal of Neuroscience. 25: 2547-57. PMID 17445250 DOI: 10.1111/j.1460-9568.2007.05483.x  1
2007 Li JC, Sampson GP, Vidyasagar TR. Interactions between luminance and colour channels in visual search and their relationship to parallel neural channels in vision. Experimental Brain Research. 176: 510-8. PMID 17119943 DOI: 10.1007/s00221-006-0773-3  1
2006 Chelvanayagam DK, Vidyasagar TR. Irregularity in neocortical spike trains: influence of measurement factors and another method of estimation. Journal of Neuroscience Methods. 157: 264-73. PMID 16797077 DOI: 10.1016/j.jneumeth.2006.05.006  1
2005 Vidyasagar TR. Attentional gating in primary visual cortex: a physiological basis for dyslexia. Perception. 34: 903-11. PMID 16178142 DOI: 10.1068/p5332  1
2005 Pammer K, Vidyasagar TR. Integration of the visual and auditory networks in dyslexia: A theoretical perspective Journal of Research in Reading. 28: 320-331. DOI: 10.1111/j.1467-9817.2005.00272.x  1
2004 Cheng A, Eysel UT, Vidyasagar TR. The role of the magnocellular pathway in serial deployment of visual attention. The European Journal of Neuroscience. 20: 2188-92. PMID 15450098 DOI: 10.1111/j.1460-9568.2004.03675.x  1
2004 Wheatley C, Cook ML, Vidyasagar TR. Surface segregation influences pre-attentive search in depth. Neuroreport. 15: 303-5. PMID 15076757 DOI: 10.1097/00001756-200402090-00018  1
2004 Vidyasagar TR. Neural underpinnings of dyslexia as a disorder of visuo-spatial attention. Clinical & Experimental Optometry. 87: 4-10. PMID 14720113 DOI: 10.1111/j.1444-0938.2004.tb03138.x  1
2002 Vidyasagar TR, Kulikowski JJ, Lipnicki DM, Dreher B. Convergence of parvocellular and magnocellular information channels in the primary visual cortex of the macaque. The European Journal of Neuroscience. 16: 945-56. PMID 12372031 DOI: 10.1046/j.1460-9568.2002.02137.x  1
2002 Chelvanayagam DK, Hu D, Vidyasagar TR. Neural spike irregularity in adjacent cells of the same visual cortical column are unrelated despite other shared properties Journal of Vision. 2: 110a. DOI: 10.1167/2.7.110  1
2001 Vidyasagar TR. From attentional gating in macaque primary visual cortex to dyslexia in humans. Progress in Brain Research. 134: 297-312. PMID 11702550 DOI: 10.1016/S0079-6123(01)34020-7  1
2001 Pigarev I, Chelvanayagam DK, Cappello J, Vidyasagar TR. Primary visual cortex and memory. Retinal position specificity and lack of size constancy at early stages of learning a visual memory task in the macaque. Experimental Brain Research. 140: 311-7. PMID 11681306 DOI: 10.1007/s002210100825  1
2000 Volgushev M, Vidyasagar TR, Chistiakova M, Eysel UT. Synaptic transmission in the neocortex during reversible cooling. Neuroscience. 98: 9-22. PMID 10858607 DOI: 10.1016/S0306-4522(00)00109-3  1
2000 Volgushev M, Vidyasagar TR, Chistiakova M, Yousef T, Eysel UT. Membrane properties and spike generation in rat visual cortical cells during reversible cooling. The Journal of Physiology. 522: 59-76. PMID 10618152  1
1999 Vidyasagar TR. A neuronal model of attentional spotlight: parietal guiding the temporal. Brain Research. Brain Research Reviews. 30: 66-76. PMID 10407126 DOI: 10.1016/S0165-0173(99)00005-3  1
1999 Vidyasagar TR, Buzás P, Kisvárday ZF, Eysel UT. Release from inhibition reveals the visual past. Nature. 399: 422-3. PMID 10365954 DOI: 10.1038/20836  1
1999 Vidyasagar TR, Pammer K. Impaired visual search in dyslexia relates to the role of the magnocellular pathway in attention. Neuroreport. 10: 1283-7. PMID 10363940  1
1998 Vidyasagar TR. Gating of neuronal responses in macaque primary visual cortex by an attentional spotlight. Neuroreport. 9: 1947-52. PMID 9674572  1
1996 Volgushev M, Vidyasagar TR, Pei X. A linear model fails to predict orientation selectivity of cells in the cat visual cortex. The Journal of Physiology. 496: 597-606. PMID 8930828  1
1996 Vidyasagar TR. Basic information processing and higher cognition: does the mammalian cerebral cortex deal with them at different hierarchical levels? Clinical and Experimental Pharmacology & Physiology. 23: 908-12. PMID 8911734  1
1996 Vidyasagar TR, Pei X, Volgushev M. Multiple mechanisms underlying the orientation selectivity of visual cortical neurones. Trends in Neurosciences. 19: 272-7. PMID 8799969 DOI: 10.1016/S0166-2236(96)20027-X  1
1995 Volgushev M, Vidyasagar TR, Pei X. Dynamics of the orientation tuning of postsynaptic potentials in the cat visual cortex. Visual Neuroscience. 12: 621-8. PMID 8527364  1
1994 Vidyasagar TR, Mueller A. Function of GABAA inhibition in specifying spatial frequency and orientation selectivities in cat striate cortex. Experimental Brain Research. 98: 31-8. PMID 8013589 DOI: 10.1007/BF00229106  1
1994 Pei X, Vidyasagar TR, Volgushev M, Creutzfeldt OD. Receptive field analysis and orientation selectivity of postsynaptic potentials of simple cells in cat visual cortex. The Journal of Neuroscience : the Official Journal of the Society For Neuroscience. 14: 7130-40. PMID 7965103  1
1993 Salzmann E, Vidyasagar TR, Creutzfeldt OD. Functional comparison of neuronal properties in the primate posterior hippocampus and parahippocampus (area TF/TH) during different behavioural paradigms involving memory and selective attention. Behavioural Brain Research. 53: 133-49. PMID 8466659 DOI: 10.1016/S0166-4328(05)80273-6  1
1993 Volgushev M, Pei X, Vidyasagar TR, Creutzfeldt OD. Excitation and inhibition in orientation selectivity of cat visual cortex neurons revealed by whole-cell recordings in vivo. Visual Neuroscience. 10: 1151-5. PMID 8257670 DOI: 10.1017/S0952523800010257  1
1993 Vidyasagar TR, Stuart GW. Perceptual learning in seeing form from motion. Proceedings. Biological Sciences / the Royal Society. 254: 241-4. PMID 8108456 DOI: 10.1098/rspb.1993.0152  1
1992 Vidyasagar TR. Subcortical mechanisms in orientation sensitivity of cat visual cortical cells. Neuroreport. 3: 185-8. PMID 1623170  1
1992 Volgushev M, Pei X, Vidyasagar TR, Creutzfeldt OD. Postsynaptic potentials in cat visual cortex: dependence on polarization. Neuroreport. 3: 679-82. PMID 1520855  1
1992 Vidyasagar TR, Wye-Dvorak J, Henry GH, Mark RF. Cytoarchitecture and visual field representation in area 17 of the tammar wallaby (Macropus eugenii). The Journal of Comparative Neurology. 325: 291-300. PMID 1281175 DOI: 10.1002/cne.903250211  1
1991 Vidyasagar TR, Salzmann E, Creutzfeldt OD. Unit activity in the hippocampus and the parahippocampal temporobasal association cortex related to memory and complex behaviour in the awake monkey. Brain Research. 544: 269-78. PMID 2039943 DOI: 10.1016/0006-8993(91)90064-3  1
1991 Pei X, Volgushev M, Vidyasagar TR, Creutzfeldt OD. Whole cell recording and conductance measurements in cat visual cortex in-vivo. Neuroreport. 2: 485-8. PMID 1912484  1
1990 Vidyasagar TR. Pattern adaptation in cat visual cortex is a co-operative phenomenon. Neuroscience. 36: 175-9. PMID 2215917 DOI: 10.1016/0306-4522(90)90360-G  1
1990 Vidyasagar TR, Henry GH. Relationship between preferred orientation and ordinal position in neurones of cat striate cortex. Visual Neuroscience. 5: 565-9. PMID 2085472  1
1987 Vidyasagar TR. A model of striate response properties based on geniculate anisotropies. Biological Cybernetics. 57: 11-23. PMID 3620539 DOI: 10.1007/BF00318712  1
1986 Vidyasagar TR, Heide W. The role of GABAergic inhibition in the response properties of neurones in cat visual area 18. Neuroscience. 17: 49-55. PMID 3960315 DOI: 10.1016/0306-4522(86)90224-1  1
1986 Kulikowski JJ, Vidyasagar TR. Space and spatial frequency: analysis and representation in the macaque striate cortex. Experimental Brain Research. 64: 5-18. PMID 3770114 DOI: 10.1007/BF00238196  1
1986 Vidyasagar TR. Greenhouse cure Nature. 323: 390. DOI: 10.1038/323390b0  1
1985 Vidyasagar TR, Sigüenza JA. Relationship between orientation tuning and spatial frequency in neurones of cat area 17. Experimental Brain Research. 57: 628-31. PMID 3979503 DOI: 10.1007/BF00237851  1
1984 Vidyasagar TR. Contribution of inhibitory mechanisms to the orientation sensitivity of cat dLGN Neurones. Experimental Brain Research. 55: 192-5. PMID 6745351 DOI: 10.1007/BF00240517  1
1984 Kulikowski JJ, Vidyasagar TR. Macaque striate cortex: pattern, movement and colour processing. Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists). 4: 77-81. PMID 6709372  1
1984 Vidyasagar TR, Heide W. Geniculate orientation biases seen with moving sine wave gratings: implications for a model of simple cell afferent connectivity. Experimental Brain Research. 57: 176-200. PMID 6519225 DOI: 10.1007/BF00231146  1
1983 Hicks TP, Lee BB, Vidyasagar TR. The responses of cells in macaque lateral geniculate nucleus to sinusoidal gratings. The Journal of Physiology. 337: 183-200. PMID 6875927  1
1983 Cleland BG, Lee BB, Vidyasagar TR. Response of neurons in the cat's lateral geniculate nucleus to moving bars of different length. The Journal of Neuroscience : the Official Journal of the Society For Neuroscience. 3: 108-16. PMID 6822850  1
1982 Vidyasagar TR, Urbas JV. Orientation sensitivity of cat LGN neurones with and without inputs from visual cortical areas 17 and 18. Experimental Brain Research. 46: 157-69. PMID 7095028 DOI: 10.1007/BF00237172  1
1981 Vidyasagar TR. Optic nerve components may not be equally susceptible to damage by acrylamide. Brain Research. 224: 452-5. PMID 7284854 DOI: 10.1016/0006-8993(81)90877-5  1
1979 Kulikowski JJ, Vidyasagar TR. Balance between pattern and movement channels in human vision [proceedings]. The Journal of Physiology. 295: 17P-18P. PMID 521920  1
1979 Vidyasagar TR, Perry GW. An improved simple tungsten microelectrode. Brain Research Bulletin. 4: 285-6. PMID 466514 DOI: 10.1016/0361-9230(79)90293-4  1
1978 Vidyasagar TR. Possible plasticity in the rat superior colliculus. Nature. 275: 140-1. PMID 692682  1
1978 Vidyasagar TR. The fate of the Taj Mahal [1] Nature. 276: 208. DOI: 10.1038/276208a0  1
1976 Vidyasagar TR. Orientation specific colour adaptation at a binocular site. Nature. 261: 39-40. PMID 1272368 DOI: 10.1038/261039a0  1
1974 Ramachandran VS, Rao VM, Vidyasagar TR. Sharpness constancy during movement perception (short note). Perception. 3: 97-8. PMID 4444926  1
1973 Ramachandran VS, Rao VM, Vidyasagar TR. Apparent movement with subjective contours. Vision Research. 13: 1399-401. PMID 4722815 DOI: 10.1016/0042-6989(73)90219-8  1
1973 Ramachandran VS, Rao VM, Vidyasagar TR. The role of contours in steropsis. Nature. 242: 412-4. PMID 4701206 DOI: 10.1038/242412a0  1
1973 Ramachandran VS, Rao VM, Sriram S, Vidyasagar TR. The role of colour perception and "pattern" recognition in stereopsis. Vision Research. 13: 505-9. PMID 4692541 DOI: 10.1016/0042-6989(73)90133-8  1
1973 Ramachandran VS, Madhusudhan Rao V, Vidyasagar TR. The role of contours in stereopsis Nature. 242: 412-414.  1
Show low-probability matches.