Experimental Brain Research

, Volume 190, Issue 4, pp 413–430 | Cite as

Auditory cortex projections target the peripheral field representation of primary visual cortex

  • Amee J. Hall
  • Stephen G. LomberEmail author
Research Article


The purpose of the present study was to identify projections from auditory to visual cortex and their organization. Retrograde tracers were used to identify the sources of auditory cortical projections to primary visual cortex (areas 17 and 18) in adult cats. Two groups of animals were studied. In the first group, large deposits were centered on the lower visual field representation of the vertical meridian located along the area 17 and 18 border. Following tissue processing, characteristic patterns of cell body labeling were identified in extrastriate visual cortex and the visual thalamus (LGN, MIN, & LPl). In auditory cortex, of the four tonotopically-organized regions, neuronal labeling was identified in the supragranular layers of the posterior auditory field (PAF). Little to no labeling was evident in the primary auditory cortex, the anterior auditory field, the ventral posterior auditory field or in the remaining six non-tonotopically organized regions of auditory cortex. In the second group, small deposits were made into the central or peripheral visual field representations of primary visual cortex. Labeled cells were identified in PAF following deposits into regions of primary visual cortex representing peripheral, but not central, visual field representations. Furthermore, a coarse topography was identified in PAF, with neurons projecting to the upper field representation being located in the gyral portion of PAF and neurons projecting to the lower field representation located in the sulcal portion of PAF. Therefore, direct projections can be identified from tonotopically organized auditory cortex to the earliest stages of visual cortical processing.


Area 17 Area 18 Auditory cortex Posterior auditory field WGA-HRP Multisensory Cat 



We would like to thank Jeffrey Mellott for assistance with the preparation of the tissue. This research was supported by grants from the Canadian Institutes of Health Research and the Natural Science and Engineering Research Council of Canada.


  1. Ahveninen J, Jaaskelainen IP, Raij T, Bonmassar G, Devore S, Hamalainen M, Levanen S, Lin FH, Sams M, Sinn-Cunningham BG, Witzel T, Belliveau JW (2006) Task-modulated “what” and “where” pathways in human auditory cortex. Proc Natl Acad Sci USA 103:14608–14613PubMedCrossRefGoogle Scholar
  2. Arnott SR, Binns MA, Grady CL, Alain C (2004) Assessing the auditory dual-pathway model in humans. Neuroimage 22:401–408PubMedCrossRefGoogle Scholar
  3. Avillac M, Hamed SB, Duhamel J-R (2007) Multisensory integration in the ventral intraparietal area of the macaque monkey. J Neurosci 27:1922–1932PubMedCrossRefGoogle Scholar
  4. Barlow HB, Blakemore C, Pettigrew JD (1967) The neural mechanisms of binocular depth discrimination. J Physiol 193:327–342PubMedGoogle Scholar
  5. Bavelier D, Neville HJ (2002) Cross-modal plasticity: where and how? Nat Rev Neurosci 3:443–452PubMedGoogle Scholar
  6. Beaver BV, Reed W, Leary S, McKiernan B, Bain F, Schultz R, Bennett BT, Pascoe P, Shull E, Cork LC, Francis-Floyd R, Amass KD, Johnson RJ, Schmidt RG, Underwood W, Thornton GW, Kohn B (2001) 2000 Report of the American Veterinary Medical Association Panel on Euthanasia. J Am Vet Med Assoc 218:669–696CrossRefGoogle Scholar
  7. Berson DM, Graybiel AM (1978) Parallel thalamic zones in the LP-pulvinar complex of the cat identified by their afferent and efferent connection. Brain Res 147:139–148PubMedCrossRefGoogle Scholar
  8. Berson DM, Graybiel AM (1983) Organization of the striate-recipient zone of the cats lateralis posterior-pulvinar complex and its relations with the geniculostriate system. Neuroscience 9:337–372PubMedCrossRefGoogle Scholar
  9. Bishop PO, Kozak W, Vakkur GJ (1962) Some quantitative aspects of the cat’s eye: axis and plane of reference, visual field coordinates, and optics. J Physiol 163:466–502PubMedGoogle Scholar
  10. Bruce C, Desimone R, Gross CG (1981) Visual properties of neurons in a polysensory area in superior temporal sulcus of the macaque. J Neurophysiol 46:369–384PubMedGoogle Scholar
  11. Buchel C, Price C, Friston K (1998) A multimodal language region in the ventral visual pathway. Nature 394:274–277PubMedCrossRefGoogle Scholar
  12. Bulkin DA, Groh JM (2006) Seeing sounds: visual and auditory interactions in the brain. Curr Opin Neurobiol 16:415–419PubMedCrossRefGoogle Scholar
  13. Bullier J, Kennedy G, Salinger W (1984) Branching and laminar origin of projections between visual cortical areas in the cat. J Comp Neurol 228:329–341PubMedCrossRefGoogle Scholar
  14. Burton H, McLaren DG (2006) Visual cortex activation in late-onset Braille naïve blind individuals: an fMRI study during semantic and phonological tasks with heard words. Neurosci Lett 392:38–42PubMedCrossRefGoogle Scholar
  15. Burton G, Snyder AZ, Conturo TE, Akbudak E, Ollinger JM, Raichle ME (2002) Adaptive changes in early and late blind: a fMRI study of Braille reading. J Neurophys 87:589–607Google Scholar
  16. Burton G, Sinclair RJ, McLaren DG (2004) Cortical activity to vibrotactile stimulation: an fMRE study in blind and sighted individuals. Hum Brain Mapp 23:210–228PubMedCrossRefGoogle Scholar
  17. Cappe C, Barone P (2005) Heteromodal connections supporting multisensory integration at low levels of cortical processing in the monkey. Eur J NeuroSci 22:2886–2902PubMedCrossRefGoogle Scholar
  18. Clarey JC, Irvine DRF (1986) Auditory response properties of neurons in the anterior ectosylvian sulcus of the cat. Brain Res 386:12–19PubMedCrossRefGoogle Scholar
  19. Clarke S, Innocenti GM (1986) Organization of immature intrahemispheric connections. J Comp Neurol 251:1–22PubMedCrossRefGoogle Scholar
  20. Clarke S, Innocenti GM (1990) Auditory neurons with transitory axons to visual areas form short permanent projections. Eur J NeuroSci 2:227–242PubMedCrossRefGoogle Scholar
  21. Clarke S, Bellmann A, Meuli RA, Assal G, Steck AJ (2000) Auditory agnosia and auditory spatial deficits following left hemispheric lesions: evidence for distinct processing. Neuropsychologia 28:797–807CrossRefGoogle Scholar
  22. Clasca F, Llamas A, Reinoso-Suárez F (1997) Insular cortex and neighboring fields in the cat: a redefinition based on cortical microarchitecture and connections with the thalamus. J Comp Neurol 384:456–482PubMedCrossRefGoogle Scholar
  23. Clasca F, Llamas A, Reinoso-Suárez F (2000) Cortical connections of the insular and adjacent parieto-temporal fields in the cat. Cereb Cortex 10:371–399PubMedCrossRefGoogle Scholar
  24. Clavagnier S, Falchier A, Kennedy H (2004) Long-distance feedback projections to area V1: implications for multisensory integration, spatial awareness, and visual consciousness. Cogn Affect Behav Neurosci 4:117–126PubMedCrossRefGoogle Scholar
  25. Dehay C, Kennedy H, Bullier J (1988) Characterization of transient cortical projections from auditory, somatosensory, and motor cortices to visual areas 17, 18, and 19 in the kitten. J Comp Neurol 272:68–89PubMedCrossRefGoogle Scholar
  26. Dehner LR, Keniston LP, Clemo HR, Meredith MA (2004) Cross-modal circuitry between auditory and somatosensory areas of the cat anterior ectosylvian sulcal cortex: a ‘new’ inhibitory form of multisensory convergence. Cereb Cortex 14:387–403PubMedCrossRefGoogle Scholar
  27. Einstein G (1996) Reciprocal projections of cat extrastriate cortex: I. Distribution and morphology of neurons projecting from posterior medial lateral suprasylvian sulcus to area 17. J Comp Neurol 376:518–529PubMedCrossRefGoogle Scholar
  28. Falchier A, Clavagnier S, Barone P, Kennedy G (2002) Anatomical evidence of multimodal integration in primate striate cortex. J Neurosci 22:5749–5759PubMedGoogle Scholar
  29. Felleman DJ, Van Essen DC (1991) Distributed hierarchical processing in the primate cerebral cortex. Cereb Cortex 1:1–47PubMedCrossRefGoogle Scholar
  30. Fu K-MG, Johnston TA, Shah AS, Arnold L, Smiley J, Hackett TA, Garraghty PE, Schroeder CE (2003) Auditory cortical neurons respond to somatosensory stimulation. J Neurosci 23:7510–7515PubMedGoogle Scholar
  31. Galletti C, Gamberini M, Kutz DF, Fattori P, Luppino G, Matelli M (2001) The cortical connections of area V6: an occipito-parietal network processing visual information. Eur J NeuroSci 13:1572–1588PubMedCrossRefGoogle Scholar
  32. Gallyas F (1979) Silver staining of myelin by means of physical development. Neurol Res 1:203–209PubMedGoogle Scholar
  33. Ghazanfar AA, Schroeder CE (2006) Is neocortex essentially multisensory? Trends Cogn Sci 10:278–285PubMedCrossRefGoogle Scholar
  34. Giard MH, Peronnet F (1999) Auditory–visual integration during multimodal object recognition in humans: a behavioral and electrophysiological study. J Cogn Neurosci 11:473–490PubMedCrossRefGoogle Scholar
  35. Gonatas NK, Harper C, Mizutani T, Gonatas JO (1979) Superior sensitivity of conjugates of horseradish peroxidase with wheat germ agglutinin for studies of retrograde axonal transport. J Histochem Cytochem 27:728–734PubMedGoogle Scholar
  36. Grant S, Shipp S (1991) Visuaotopic organization of the lateral suprasylvian area and of an adjacent area of the ectosylvian gyrus of the cat cortex: a physiological and connectional study. Vis Neurosci 6:315–338PubMedGoogle Scholar
  37. Graybiel AM (1972) Some extrageniculate visual pathways in the cat. Invest Ophthalmol 11:322–332PubMedGoogle Scholar
  38. Griffiths TD, Buchel C, Frackowiak RS, Patterson RD (1998) Analysis of temporal structure in sound by the human brain. Nat Neurosci 1:422–427PubMedCrossRefGoogle Scholar
  39. Hackett TA, Stepniewska I, Kaas JH (1998) Subdivisions of auditory cortex and ipsilateral cortical connections of the parabelt auditory cortex in macaque monkeys. J Comp Neurol 394:475–495PubMedCrossRefGoogle Scholar
  40. Hammond P (1978) Inadequacy of nitrous oxide/oxygen mixtures for maintaining anaesthesia in cats: satisfactory alternatives. Pain 5:143–151PubMedCrossRefGoogle Scholar
  41. Hikosaka K, Iwai E, Saito HA, Tanaka K (1988) Polysensory properties of neurons in the anterior bank of the caudal superior temporal sulcus of the macaque monkey. J Neurophys 60:1615–1637Google Scholar
  42. Huffman KJ, Krubitzer L (2001) Area 3a: topographic organization and cortical connections in marmoset monkeys. Cereb Cortex 11:849–867PubMedCrossRefGoogle Scholar
  43. Hutchins B, Updyke BV (1989) Retinotopic organization within the lateral posterior complex of the cat. J Comp Neurol 285:350–398PubMedCrossRefGoogle Scholar
  44. Hyvarinen J, Shelepin Y (1979) Distribution of visual and somatic functions in the parietal associative area 7 of the monkey. Brain Res 169:561–564PubMedCrossRefGoogle Scholar
  45. Imig TJ, Reale RA (1980) Patterns of cortico-cortical connections related to Tonotopic maps in cat auditory cortex. J Comp Neurol 192:293–332PubMedCrossRefGoogle Scholar
  46. Innocenti GM, Clarke S (1984) Bilateral transitory projection to visual areas from auditory cortex in kittens. Brain Res Dev Brain Res 14:143–148CrossRefGoogle Scholar
  47. Innocenti GM, Berbel P, Clarke S (1988) Development of projections from auditory to visual areas in the cat. J Comp Neurol 272:242–259PubMedCrossRefGoogle Scholar
  48. Jones EG, Powell TP (1970) An anatomical study of converging sensory pathways within the cerebral cortex of the monkey. Brain 93:793–820PubMedCrossRefGoogle Scholar
  49. Joshua DE, Bishop PO (1970) Binocular single vision and depth discrimination. Receptive-field disparities for central and peripheral vision and the binocular interaction on peripheral single units in cat striate cortex. Exp Brain Res 10:389–416PubMedCrossRefGoogle Scholar
  50. Kaas JH, Hackett TA (1998) Subdivisions of auditory cortex and levels of processing in primates. Audiol Neurootol 3:73–85PubMedCrossRefGoogle Scholar
  51. Kaas JH, Hackett TA (2000) Subdivisions of auditory cortex and processing streams in primates. Proc Natl Acad Sci USA 97:11793–11799PubMedCrossRefGoogle Scholar
  52. Kaas JH, Morel A (1993) Connections of visual areas of the upper temporal lobe of owl monkeys: the MT crescent and dorsal and ventral subdivisions of FST. J Neurosci 13:534–546PubMedGoogle Scholar
  53. Krubitzer LA, Kaas JH (1990) The organization and connections of somatosensory cortex in marmosets. J Neurosci 10:952–974PubMedGoogle Scholar
  54. Krumbholz K, Schonwiesner M, Von Cramon DY, Rubsamen R, Shah NJ, Zilles K, Fink GR (2005) Representation of interaural temporal information from left and right auditory space in the human planum temporale and inferior parietal lobe. Cereb Cortex 15:317–324PubMedCrossRefGoogle Scholar
  55. Lee CC, Winer JA (2008) Connections of cat auditory cortex: III. Corticocortical system. J Comp Neurol 507:1920–1943PubMedCrossRefGoogle Scholar
  56. Lewis JW, Van Essen DC (2000) Corticocortical connections of visual, sensorimotor, and multimodal processing areas in the parietal lobe of the macaque monkey. J Comp Neurol 428:112–137PubMedCrossRefGoogle Scholar
  57. Lomber SG, MacNeil MA, Payne BR (1995) Amplification of the thalamic projections to middle suprasylvian cortex following ablation of immature primary visual cortex in the cat. Cereb Cortex 5:166–191PubMedCrossRefGoogle Scholar
  58. Malhotra S, Lomber SG (2007) Sound localization during homotopic and heterotopic bilateral cooling deactivation of primary and nonprimary auditory cortical areas in the cat. J Neurophysiol 97:26–43PubMedCrossRefGoogle Scholar
  59. Malhotra S, Hall AJ, Lomber SG (2004) Cortical control of sound localization in the cat: unilateral cooling deactivation of 19 cerebral areas. J Neurophysiol 92:1625–1643PubMedCrossRefGoogle Scholar
  60. Malhotra S, Stecker GC, Middlebrooks JC, Lomber SG (2008) Sound localization deficits during reversible deactivation of primary auditory cortex and/or the dorsal zone. J Neurophysiol 99:1628–1642PubMedCrossRefGoogle Scholar
  61. Mazzoni P, Bracewell RM, Barash S, Andersen RA (1996) Spatially tuned auditory responses in area LIP of macaques performing delayed memory saccades to acoustic targets. J Neurophysiol 75:1233–1241PubMedGoogle Scholar
  62. Meredith MA, Clemo GR (1989) Auditory cortical projection from the anterior ectosylvian sulcus (field AES) to the superior colliculus in the cat: an anatomical and electrophysiological study. J Comp Neurol 289:687–707PubMedCrossRefGoogle Scholar
  63. Mesulam MM (1982) Tracing neural connections with horseradish peroxidase. Wiley, ChichesterGoogle Scholar
  64. Nikara T, Bishop PO, Pettigrew JD (1968) Analysis of retinal correspondence by studying receptive fields of binocular single units in cat striate cortex. Exp Brain Res 6:353–372PubMedCrossRefGoogle Scholar
  65. Noesselt T, Rieger JW, Schoenfeld MA, Kanowski M, Hinrichs H, Heinze HJ, Driver J (2007) Audiovisual temporal correspondence modulates human multisensory superior temporal sulcus plus primary sensory cortices. J Neurosci 27:11431–11441PubMedCrossRefGoogle Scholar
  66. Noppeney U (2007) The effects of visual deprivation on functional and structural organization of the human brain. Neurosci Biobehav Rev 31:1169–1180PubMedCrossRefGoogle Scholar
  67. Olfert ED, Cross, BM, McWilliam AA (1993) Guide to the Care and Use of Experimental Animals. Canadian Council on Animal CareGoogle Scholar
  68. Olucha F, Martinez-Garcia F, Lopez-Garcia C (1985) A new stabilizing agent for the tetramethyl benzidine (TMB) reaction product in the histochemical detection of horseradish peroxidase. J Neurosci Methods 13:131–138PubMedCrossRefGoogle Scholar
  69. Palmer SM, Rosa MGP (2006) A distinct anatomical network of cortical areas for analysis of motion in far peripheral vision. Eur J NeuroSci 24:2389–2405PubMedCrossRefGoogle Scholar
  70. Palmer LA, Rosenquist AC, Tusa RJ (1978) The retinotopic organization of lateral suprasylvian visual areas in the cat. J Comp Neurol 177:237–356PubMedCrossRefGoogle Scholar
  71. Payne BR (1990) Representation of the ipsilateral visual field in the transition zone between areas 17 and 18 of the cat’s cerebral cortex. Vis Neurosci 4:445–474PubMedGoogle Scholar
  72. Payne BR, Lomber SG (1996) Age dependent modification of cytochrome oxidase activity in the cat dorsal lateral geniculate nucleus following removal of primary visual cortex. Vis Neurosci 13:805–816PubMedGoogle Scholar
  73. Payne BR, Berman N, Murphy EH (1981) A quantitative assessment of eye alignment in cats after corpus callosum transaction. Exp Brain Res 43:371–376PubMedGoogle Scholar
  74. Pettigrew JD, Cooper ML, Blasdel GG (1979) Improved use of tapetal reflection for eye-position monitoring. Invest Ophthalmol Vis Sci 18:490–495PubMedGoogle Scholar
  75. Ptito M, Kupers R (2005) Cross-modal plasticity in early blindness. J Integr Neurosci 4:479–488PubMedCrossRefGoogle Scholar
  76. Ptito M, Schneider FCG, Paulson OB, Kupers R (2008) Alterations of the visual pathways in congenital blindness. Exp Brain Res 187:41–49PubMedCrossRefGoogle Scholar
  77. Raczkowski D, Rosenquest AC (1981) Retinotopic organization in the cat lateral posterior-pulvinar complex. Brain Res 221:185–191PubMedCrossRefGoogle Scholar
  78. Rauschecker JP (1998a) Parallel processing in the auditory cortex of primates. Audiol Neurootol 3:86–103PubMedCrossRefGoogle Scholar
  79. Rauschecker JP (1998b) Cortical processing of complex sounds. Curr Opin Neurobiol 8:516–521PubMedCrossRefGoogle Scholar
  80. Raz N, Amedi A, Zohary E (2005) V1 activation in congenitally blind humans is associated with episodic retrieval. Cereb Cortex 15:1459–1468PubMedCrossRefGoogle Scholar
  81. Reale RA, Imig TJ (1980) Tonotopic organization in auditory cortex of the cat. J Comp Neurol 192:265–291PubMedCrossRefGoogle Scholar
  82. Recanzone GH (2000) Spatial processing in the auditory cortex of the macaque monkey. Proc Natl Acad Sci USA 97:11829–11835PubMedCrossRefGoogle Scholar
  83. Reinoso-Suárez F (1961) Topographischer Hirnatlas der Katze fur experimental-physiologische Untersuchungen [Topographical atlas of the cat brain for experimental-physiological research]. Darmstadt: Merck.Google Scholar
  84. Rizzolatti G, Scandolara C, Matelli M, Gentilucci M (1981) Afferent properties of periarcuate neurons in macaque monkeys. I. Somatosensory responses. Behav Brain Res 2:125–146PubMedCrossRefGoogle Scholar
  85. Rockland KS, Ojima H (2003) Multisensory convergence in calcarine visual areas in macaque monkey. J Psychophys 50:19–26CrossRefGoogle Scholar
  86. Rockland KS, Pandya DN (1979) Laminar origins and terminations of cortical connections of the occipital lobe in the rhesus monkey. Brain Res 179:3–20PubMedCrossRefGoogle Scholar
  87. Roder B, Stock O, Bien S, Neville H, Rosler F (2002) Speech processing activates visual cortex in congenitally blind humans. Eur J NeuroSci 16:930–936PubMedCrossRefGoogle Scholar
  88. Rose JE (1949) The cellular structure of the auditory region of the cat. J Comp Neurol 91:409–440PubMedCrossRefGoogle Scholar
  89. Sanderson KJ (1971) The projection of the visual field to the lateral geniculate and medial interlaminar nuclei in the cat. J Comp Neurol 143:101–118PubMedCrossRefGoogle Scholar
  90. Schall JD, Morel A, King DJ, Bullier J (1995) Topography of visual cortex connections with frontal eye field in macaque: convergence and segregation of processing streams. 15:4464–4487Google Scholar
  91. Schlack A, Sterbing-D’Angelo SJ, Hartung K, Hoffmann K-P, Bremmer J (2005) Multisensory space representations in the macaque ventral intraparietal area. J Neurosci 25:4616–4625PubMedCrossRefGoogle Scholar
  92. Schroeder CE, Foxe JJ (2002) The timing and laminar profile of converging inputs to multisensory areas of the macaque neocortex. Brain Res Cogn Brain Res 14:187–198PubMedCrossRefGoogle Scholar
  93. Schroeder CE, Foxe J (2005) Multisensory contributions to low-level, ‘unisensory’ processing. Curr Opin Neurobiol 15:454–458PubMedCrossRefGoogle Scholar
  94. Schroeder CE, Lindsley RW, Specht C, Marcovici A, Smiley JF, Javitt DC (2001) Somatosensory input to auditory association cortex in the macaque monkey. J Neurophysiol 85:1322–1327PubMedGoogle Scholar
  95. Schroeder CE, Smiley J, Kaiming GF, McGinnis T, O’Connell MN, Hackett TA (2003) Anatomical mechanisms and functional implications of multisensory convergence in early cortical processing. Int J Psychophysiol 50:5–17PubMedCrossRefGoogle Scholar
  96. Shipp S, Zeki S (1989) The organization of connections between areas V5 and V1 in macaque monkey visual cortex. Eur J NeuroSci 1:309–332PubMedCrossRefGoogle Scholar
  97. Shupert C, Cornwell P, Payne B (1993) Differential sparing of depth perception, orienting, and optokinetic nystagmus after neonatal versus adult lesions of cortical areas 17, 18, and 19 in the cat. Behav Neurosci 107:633–850PubMedCrossRefGoogle Scholar
  98. Stecker GC, Mickey BJ, Macpherson EA, Middlebrooks JC (2003) Spatial sensitivity in field PAF of cat auditory cortex. J Neurophysiol 89:2889–2903PubMedCrossRefGoogle Scholar
  99. Symonds LL, Rosenquist AC (1984a) Coricocortical connections among visual areas in the cat. J Comp Neurol 229:1–38PubMedCrossRefGoogle Scholar
  100. Symonds LL, Rosenquist AC (1984b) Laminar origins of visual corticocortical connections in the cat. J Comp Neurol 229:39–47PubMedCrossRefGoogle Scholar
  101. Symonds LL, Rosenquist AC, Edwards SB, Palmer LA (1981) Projections of the pulvinar-lateral posterior complex to visual cortical areas in the cat. Neuroscience 6:1995–2020PubMedCrossRefGoogle Scholar
  102. Tian B, Reser D, Durham A, Kustov A, Rauschecker JP (2001) Functional specialization in rhesus monkey auditory cortex. Science 292:290–293PubMedCrossRefGoogle Scholar
  103. Tretter F, Cynader M, Singer W (1975) Cat parastriate cortex: a primary or secondary visual area. J Neurophysiol 38:1099–1113PubMedGoogle Scholar
  104. Tusa RJ, Palmer LA (1980) Retinotopic organization of areas 20 and 21 in the cat. J Comp Neurol 193:147–164PubMedCrossRefGoogle Scholar
  105. Tusa RJ, Palmer LA, Rosenquist AC (1978) The retinotopic organization of area 17 (Striate Cortex) in the cat. J Comp Neurol 177:213–236PubMedCrossRefGoogle Scholar
  106. Tusa RJ, Rosenquist AC, Palmer LA (1979) Retinotopic organization of areas 18 and 19 in the cat. J Comp Neurol 185:657–678PubMedCrossRefGoogle Scholar
  107. Updyke BV (1983) A reevaluation of the functional organization and cytoarchitecture of the feline lateral posterior complex, with observations on adjoining cell groups. J Comp Neurol 219:143–181PubMedCrossRefGoogle Scholar
  108. Updyke BV (1986) Retinotopic organization within the cat’s posterior suprasylvian sulcus and gyrus. J Comp Neurol 246:265–280PubMedCrossRefGoogle Scholar
  109. Watkins S, Shams L, Josephs O, Rees G (2007) Activity in the human V1 follows multisensory perception. NeuroImage 37:572–578PubMedCrossRefGoogle Scholar
  110. Weeks R, Horwitz B, Aziz-Sultan A, Tian B, Wessinger CM, Cohen LG (2004) A positron emission tomographic study of auditory localization in the congenitally blind. J Neurosci 20:2664–2672Google Scholar

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Authors and Affiliations

  1. 1.Graduate Program in NeuroscienceUniversity of Western OntarioLondonCanada
  2. 2.Centre for Brain and Mind, Schulich School of Medicine and Dentistry, Cerebral Systems Laboratory, Department of Physiology and Pharmacology, M216 Medical Sciences BuildingUniversity of Western OntarioLondonCanada
  3. 3.Cerebral Systems Laboratory, Department of Psychology, Faculty of Social ScienceUniversity of Western OntarioLondonCanada

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