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David Copenhagen, PhD

TitleProfessor
SchoolUCSF School of Medicine
DepartmentOphthalmology
Address675 Nelson Rising Lane
San Francisco CA 94158
Phone415-502-7351
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    Collapse Research 
    Collapse Research Activities and Funding
    Melanopsin-mediated light responses in the embryonic retina
    NIH/NEI R21EY025435Apr 1, 2015 - Mar 31, 2017
    Role: Principal Investigator
    Light regulated vascular development of the eye
    NIH/NEI R01EY023179Jan 1, 2013 - Dec 31, 2016
    Role: Co-Principal Investigator
    Training Program for the Visual Sciences
    NIH/NEI T32EY007120Sep 30, 1990 - Sep 29, 2016
    Role: Principal Investigator
    Function and development in the synapse
    NIH P01NS016033Apr 1, 1980 - Jun 30, 2009
    Role: Co-Investigator
    P30 - CENTER CORE GRANT FOR VISION RESEARCH
    NIH/NEI P30EY002162Dec 1, 1977 - Jun 30, 2019
    Role: Co-Investigator
    Synaptic Interactions and Mechanisms in the Retina
    NIH/NEI R01EY001869Feb 1, 1977 - Jun 30, 2014
    Role: Principal Investigator
    SYNAPTIC INTERACTIONS AND MECHANISMS IN THE RETINA
    NIH/NEI R37EY001869Feb 1, 1977 - Jan 31, 2004
    Role: Principal Investigator

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    Collapse Publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
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    1. Delwig A, Larsen DD, Yasumura D, Yang CF, Shah NM, Copenhagen D. Retinofugal Projections from Melanopsin-Expressing Retinal Ganglion Cells Revealed by Intraocular Injections of Cre-Dependent Virus. PLoS One. 2016; 11(2):e0149501. PMID: 26895233; PMCID: PMC4764510.
    2. Delwig A, Majumdar S, Ahern K, LaVail MM, Edwards R, Hnasko TS, Copenhagen D. Glutamatergic neurotransmission from melanopsin retinal ganglion cells is required for neonatal photoaversion but not adult pupillary light reflex. PLoS One. 2013; 8(12):e83974. PMID: 24391855; PMCID: PMC3877098.
    3. Rao S, Chun C, Fan J, Kofron JM, Yang MB, Hegde RS, Ferrara N, Copenhagen D, Lang RA. A direct and melanopsin-dependent fetal light response regulates mouse eye development. Nature. 2013 Feb 14; 494(7436):243-6. PMID: 23334418; PMCID: PMC3746810.
    4. Delwig A, Logan AM, Copenhagen D, Ahn AH. Light evokes melanopsin-dependent vocalization and neural activation associated with aversive experience in neonatal mice. PLoS One. 2012; 7(9):e43787. PMID: 23028470; PMCID: PMC3441538.
    5. Yoshida M, Feng L, Grimbert F, Rangarajan KV, Buggele W, Copenhagen D, Cang J, Liu X. Overexpression of neurotrophin-3 stimulates a second wave of dopaminergic amacrine cell genesis after birth in the mouse retina. J Neurosci. 2011 Aug 31; 31(35):12663-73. PMID: 21880927; PMCID: PMC3184017.
    6. Chen AI, Nguyen CN, Copenhagen D, Badurek S, Minichiello L, Ranscht B, Reichardt LF. TrkB (tropomyosin-related kinase B) controls the assembly and maintenance of GABAergic synapses in the cerebellar cortex. J Neurosci. 2011 Feb 23; 31(8):2769-80. PMID: 21414899; PMCID: PMC3154015.
    7. Johnson J, Wu V, Donovan M, Majumdar S, Rentería RC, Porco T, Van Gelder RN, Copenhagen D. Melanopsin-dependent light avoidance in neonatal mice. Proc Natl Acad Sci U S A. 2010 Oct 05; 107(40):17374-8. PMID: 20855606; PMCID: PMC2951438.
    8. Liu X, Robinson ML, Schreiber AM, Wu V, Lavail MM, Cang J, Copenhagen D. Regulation of neonatal development of retinal ganglion cell dendrites by neurotrophin-3 overexpression. J Comp Neurol. 2009 Jun 10; 514(5):449-58. PMID: 19350645; PMCID: PMC2691146.
    9. Blankenship AG, Ford KJ, Johnson J, Seal RP, Edwards RH, Copenhagen D, Feller MB. Synaptic and extrasynaptic factors governing glutamatergic retinal waves. Neuron. 2009 Apr 30; 62(2):230-41. PMID: 19409268; PMCID: PMC2807181.
    10. Grishanin RN, Yang H, Liu X, Donohue-Rolfe K, Nune GC, Zang K, Xu B, Duncan JL, Lavail MM, Copenhagen D, Reichardt LF. Retinal TrkB receptors regulate neural development in the inner, but not outer, retina. Mol Cell Neurosci. 2008 Jul; 38(3):431-43. PMID: 18511296; PMCID: PMC2849660.
    11. Liu X, Grishanin RN, Tolwani RJ, Rentería RC, Xu B, Reichardt LF, Copenhagen D. Brain-derived neurotrophic factor and TrkB modulate visual experience-dependent refinement of neuronal pathways in retina. J Neurosci. 2007 Jul 04; 27(27):7256-67. PMID: 17611278; PMCID: PMC2579893.
    12. Johnson J, Fremeau RT, Duncan JL, Rentería RC, Yang H, Hua Z, Liu X, LaVail MM, Edwards RH, Copenhagen D. Vesicular glutamate transporter 1 is required for photoreceptor synaptic signaling but not for intrinsic visual functions. J Neurosci. 2007 Jul 04; 27(27):7245-55. PMID: 17611277; PMCID: PMC2443709.
    13. Rentería RC, Tian N, Cang J, Nakanishi S, Stryker MP, Copenhagen D. Intrinsic ON responses of the retinal OFF pathway are suppressed by the ON pathway. J Neurosci. 2006 Nov 15; 26(46):11857-69. PMID: 17108159; PMCID: PMC2553694.
    14. Duncan JL, Yang H, Doan T, Silverstein RS, Murphy GJ, Nune G, Liu X, Copenhagen D, Tempel BL, Rieke F, Krizaj D. Scotopic visual signaling in the mouse retina is modulated by high-affinity plasma membrane calcium extrusion. J Neurosci. 2006 Jul 05; 26(27):7201-11. PMID: 16822977; PMCID: PMC1987386.
    15. Bjartmar L, Huberman AD, Ullian EM, Rentería RC, Liu X, Xu W, Prezioso J, Susman MW, Stellwagen D, Stokes CC, Cho R, Worley P, Malenka RC, Ball S, Peachey NS, Copenhagen D, Chapman B, Nakamoto M, Barres BA, Perin MS. Neuronal pentraxins mediate synaptic refinement in the developing visual system. J Neurosci. 2006 Jun 07; 26(23):6269-81. PMID: 16763034; PMCID: PMC2579897.
    16. Cang J, Rentería RC, Kaneko M, Liu X, Copenhagen D, Stryker MP. Development of precise maps in visual cortex requires patterned spontaneous activity in the retina. Neuron. 2005 Dec 08; 48(5):797-809. PMID: 16337917; PMCID: PMC2562716.
    17. Pfeiffenberger C, Cutforth T, Woods G, Yamada J, Rentería RC, Copenhagen D, Flanagan JG, Feldheim DA. Ephrin-As and neural activity are required for eye-specific patterning during retinogeniculate mapping. Nat Neurosci. 2005 Aug; 8(8):1022-7. PMID: 16025107; PMCID: PMC1352169.
    18. Rentería RC, Strehler EE, Copenhagen D, Krizaj D. Ontogeny of plasma membrane Ca2+ ATPase isoforms in the neural retina of the postnatal rat. Vis Neurosci. 2005 May-Jun; 22(3):263-74. PMID: 16079002; PMCID: PMC1975396.
    19. Johnson J, Sherry DM, Liu X, Fremeau RT, Seal RP, Edwards RH, Copenhagen D. Vesicular glutamate transporter 3 expression identifies glutamatergic amacrine cells in the rodent retina. J Comp Neurol. 2004 Sep 27; 477(4):386-98. PMID: 15329888; PMCID: PMC2586940.
    20. Krizaj D, Liu X, Copenhagen D. Expression of calcium transporters in the retina of the tiger salamander (Ambystoma tigrinum). J Comp Neurol. 2004 Aug 02; 475(4):463-80. PMID: 15236230; PMCID: PMC2579895.
    21. Bieda MC, Copenhagen D. N-type and L-type calcium channels mediate glycinergic synaptic inputs to retinal ganglion cells of tiger salamanders. Vis Neurosci. 2004 Jul-Aug; 21(4):545-50. PMID: 15579220; PMCID: PMC2579891.
    22. Fremeau RT, Kam K, Qureshi T, Johnson J, Copenhagen D, Storm-Mathisen J, Chaudhry FA, Nicoll RA, Edwards RH. Vesicular glutamate transporters 1 and 2 target to functionally distinct synaptic release sites. Science. 2004 Jun 18; 304(5678):1815-9. PMID: 15118123.
      View in: PubMed
    23. Rentería RC, Johnson J, Copenhagen D. Need rods? Get glycine receptors and taurine. Neuron. 2004 Mar 25; 41(6):839-41. PMID: 15046714.
      View in: PubMed
    24. Tian N, Copenhagen D. Visual stimulation is required for refinement of ON and OFF pathways in postnatal retina. Neuron. 2003 Jul 03; 39(1):85-96. PMID: 12848934.
      View in: PubMed
    25. Wreden CC, Johnson J, Tran C, Seal RP, Copenhagen D, Reimer RJ, Edwards RH. The H+-coupled electrogenic lysosomal amino acid transporter LYAAT1 localizes to the axon and plasma membrane of hippocampal neurons. J Neurosci. 2003 Feb 15; 23(4):1265-75. PMID: 12598615.
      View in: PubMed
    26. Krizaj D, Lai FA, Copenhagen D. Ryanodine stores and calcium regulation in the inner segments of salamander rods and cones. J Physiol. 2003 Mar 15; 547(Pt 3):761-74. PMID: 12562925; PMCID: PMC2342740.
    27. Johnson J, Tian N, Caywood MS, Reimer RJ, Edwards RH, Copenhagen D. Vesicular neurotransmitter transporter expression in developing postnatal rodent retina: GABA and glycine precede glutamate. J Neurosci. 2003 Jan 15; 23(2):518-29. PMID: 12533612.
      View in: PubMed
    28. Fremeau RT, Burman J, Qureshi T, Tran CH, Proctor J, Johnson J, Zhang H, Sulzer D, Copenhagen D, Storm-Mathisen J, Reimer RJ, Chaudhry FA, Edwards RH. The identification of vesicular glutamate transporter 3 suggests novel modes of signaling by glutamate. Proc Natl Acad Sci U S A. 2002 Oct 29; 99(22):14488-93. PMID: 12388773; PMCID: PMC137910.
    29. Krizaj D, Demarco SJ, Johnson J, Strehler EE, Copenhagen D. Cell-specific expression of plasma membrane calcium ATPase isoforms in retinal neurons. J Comp Neurol. 2002 Sep 09; 451(1):1-21. PMID: 12209837; PMCID: PMC1987379.
    30. Krizaj D, Copenhagen D. Calcium regulation in photoreceptors. Front Biosci. 2002 Sep 01; 7:d2023-44. PMID: 12161344; PMCID: PMC1995662.
    31. Chaudhry FA, Krizaj D, Larsson P, Reimer RJ, Wreden C, Storm-Mathisen J, Copenhagen D, Kavanaugh M, Edwards RH. Coupled and uncoupled proton movement by amino acid transport system N. EMBO J. 2001 Dec 17; 20(24):7041-51. PMID: 11742981; PMCID: PMC125789.
    32. Tian N, Copenhagen D. Visual deprivation alters development of synaptic function in inner retina after eye opening. Neuron. 2001 Nov 08; 32(3):439-49. PMID: 11709155.
      View in: PubMed
    33. Copenhagen D. Is the retina going digital? Neuron. 2001 May; 30(2):303-5. PMID: 11394991.
      View in: PubMed
    34. Kleiman RJ, Tian N, Krizaj D, Hwang TN, Copenhagen D, Reichardt LF. BDNF-Induced potentiation of spontaneous twitching in innervated myocytes requires calcium release from intracellular stores. J Neurophysiol. 2000 Jul; 84(1):472-83. PMID: 10899220; PMCID: PMC2710114.
    35. Baier H, Copenhagen D. Combining physiology and genetics in the zebrafish retina. J Physiol. 2000 Apr 01; 524 Pt 1:1. PMID: 10747178; PMCID: PMC2269857.
    36. Bieda MC, Copenhagen D. Inhibition is not required for the production of transient spiking responses from retinal ganglion cells. Vis Neurosci. 2000 Mar-Apr; 17(2):243-54. PMID: 10824678.
      View in: PubMed
    37. Vu TQ, Payne JA, Copenhagen D. Localization and developmental expression patterns of the neuronal K-Cl cotransporter (KCC2) in the rat retina. J Neurosci. 2000 Feb 15; 20(4):1414-23. PMID: 10662832.
      View in: PubMed
    38. Chaudhry FA, Reimer RJ, Krizaj D, Barber D, Storm-Mathisen J, Copenhagen D, Edwards RH. Molecular analysis of system N suggests novel physiological roles in nitrogen metabolism and synaptic transmission. Cell. 1999 Dec 23; 99(7):769-80. PMID: 10619430.
      View in: PubMed
    39. Tian N, Petersen C, Kash S, Baekkeskov S, Copenhagen D, Nicoll R. The role of the synthetic enzyme GAD65 in the control of neuronal gamma-aminobutyric acid release. Proc Natl Acad Sci U S A. 1999 Oct 26; 96(22):12911-6. PMID: 10536022; PMCID: PMC23160.
    40. Hwang TN, Copenhagen D. Automatic detection, characterization, and discrimination of kinetically distinct spontaneous synaptic events. J Neurosci Methods. 1999 Oct 15; 92(1-2):65-73. PMID: 10595704.
      View in: PubMed
    41. Krizaj D, Bao JX, Schmitz Y, Witkovsky P, Copenhagen D. Caffeine-sensitive calcium stores regulate synaptic transmission from retinal rod photoreceptors. J Neurosci. 1999 Sep 01; 19(17):7249-61. PMID: 10460231.
      View in: PubMed
    42. Bieda MC, Copenhagen D. Sodium action potentials are not required for light-evoked release of GABA or glycine from retinal amacrine cells. J Neurophysiol. 1999 Jun; 81(6):3092-5. PMID: 10368424.
      View in: PubMed
    43. Tian N, Hwang TN, Copenhagen D. Analysis of excitatory and inhibitory spontaneous synaptic activity in mouse retinal ganglion cells. J Neurophysiol. 1998 Sep; 80(3):1327-40. PMID: 9744942.
      View in: PubMed
    44. Krizaj D, Copenhagen D. Compartmentalization of calcium extrusion mechanisms in the outer and inner segments of photoreceptors. Neuron. 1998 Jul; 21(1):249-56. PMID: 9697868; PMCID: PMC2954769.
    45. Dixon DB, Copenhagen D. Metabotropic glutamate receptor-mediated suppression of an inward rectifier current is linked via a cGMP cascade. J Neurosci. 1997 Dec 01; 17(23):8945-54. PMID: 9364042.
      View in: PubMed
    46. Dixon DB, Takahashi K, Bieda M, Copenhagen D. Quinine, intracellular pH and modulation of hemi-gap junctions in catfish horizontal cells. Vision Res. 1996 Dec; 36(24):3925-31. PMID: 9068845.
      View in: PubMed
    47. Copenhagen D. Retinal development: on the crest of an exciting wave. Curr Biol. 1996 Nov 01; 6(11):1368-70. PMID: 8939594.
      View in: PubMed
    48. Taylor WR, Mittman S, Copenhagen D. Passive electrical cable properties and synaptic excitation of tiger salamander retinal ganglion cells. Vis Neurosci. 1996 Sep-Oct; 13(5):979-90. PMID: 8903038.
      View in: PubMed
    49. Takahashi KI, Copenhagen D. Modulation of neuronal function by intracellular pH. Neurosci Res. 1996 Jan; 24(2):109-16. PMID: 8929916.
      View in: PubMed
    50. Diamond JS, Copenhagen D. The relationship between light-evoked synaptic excitation and spiking behaviour of salamander retinal ganglion cells. J Physiol. 1995 Sep 15; 487 ( Pt 3):711-25. PMID: 8544133; PMCID: PMC1156657.
    51. Taylor WR, Chen E, Copenhagen D. Characterization of spontaneous excitatory synaptic currents in salamander retinal ganglion cells. J Physiol. 1995 Jul 01; 486 ( Pt 1):207-21. PMID: 7562636; PMCID: PMC1156509.
    52. Takahashi K, Copenhagen D. Intracellular alkalinization enhances inward rectifier K+ current in retinal horizontal cells of catfish. Zoolog Sci. 1995 Feb; 12(1):29-34. PMID: 7795489.
      View in: PubMed
    53. Takahashi K, Miyoshi S, Kaneko A, Copenhagen D. Actions of nipecotic acid and SKF89976A on GABA transporter in cone-driven horizontal cells dissociated from the catfish retina. Jpn J Physiol. 1995; 45(3):457-73. PMID: 7474528.
      View in: PubMed
    54. Liepe BA, Stone C, Koistinaho J, Copenhagen D. Nitric oxide synthase in Müller cells and neurons of salamander and fish retina. J Neurosci. 1994 Dec; 14(12):7641-54. PMID: 7527846.
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    55. Diamond JS, Copenhagen D. The contribution of NMDA and non-NMDA receptors to the light-evoked input-output characteristics of retinal ganglion cells. Neuron. 1993 Oct; 11(4):725-38. PMID: 8104431.
      View in: PubMed
    56. Dixon DB, Takahashi K, Copenhagen D. L-glutamate suppresses HVA calcium current in catfish horizontal cells by raising intracellular proton concentration. Neuron. 1993 Aug; 11(2):267-77. PMID: 8102533.
      View in: PubMed
    57. Takahashi K, Dixon DB, Copenhagen D. Modulation of a sustained calcium current by intracellular pH in horizontal cells of fish retina. J Gen Physiol. 1993 May; 101(5):695-714. PMID: 7687644; PMCID: PMC2216781.
    58. Dixon DB, Copenhagen D. Suppression of a calcium current by CNQX and kynurenate. Neurosci Lett. 1992 Dec 07; 147(2):147-50. PMID: 1283454.
      View in: PubMed
    59. Takahashi K, Copenhagen D. APB suppresses synaptic input to retinal horizontal cells in fish: a direct action on horizontal cells modulated by intracellular pH. J Neurophysiol. 1992 Jun; 67(6):1633-42. PMID: 1352805.
      View in: PubMed
    60. Dixon DB, Copenhagen D. Two types of glutamate receptors differentially excite amacrine cells in the tiger salamander retina. J Physiol. 1992 Apr; 449:589-606. PMID: 1355793; PMCID: PMC1176096.
    61. Copenhagen D. Synaptic transmission in the retina. Curr Opin Neurobiol. 1991 Aug; 1(2):258-62. PMID: 1687958.
      View in: PubMed
    62. Ayoub GS, Copenhagen D. Application of a fluorometric method to measure glutamate release from single retinal photoreceptors. J Neurosci Methods. 1991 Mar; 37(1):7-14. PMID: 1677056.
      View in: PubMed
    63. Mittman S, Taylor WR, Copenhagen D. Concomitant activation of two types of glutamate receptor mediates excitation of salamander retinal ganglion cells. J Physiol. 1990 Sep; 428:175-97. PMID: 2172521; PMCID: PMC1181641.
    64. Donner K, Copenhagen D, Reuter T. Weber and noise adaptation in the retina of the toad Bufo marinus. J Gen Physiol. 1990 Apr; 95(4):733-53. PMID: 2110969; PMCID: PMC2216330.
    65. Copenhagen D, Hemilä S, Reuter T. Signal transmission through the dark-adapted retina of the toad (Bufo marinus). Gain, convergence, and signal/noise. J Gen Physiol. 1990 Apr; 95(4):717-32. PMID: 2110968; PMCID: PMC2216331.
    66. Nawy S, Copenhagen D. Intracellular cesium separates two glutamate conductances in retinal bipolar cells of goldfish. Vision Res. 1990; 30(7):967-72. PMID: 1975465.
      View in: PubMed
    67. Copenhagen D, Jahr CE. Release of endogenous excitatory amino acids from turtle photoreceptors. Nature. 1989 Oct 12; 341(6242):536-9. PMID: 2477707.
      View in: PubMed
    68. Nawy S, Sie A, Copenhagen D. The glutamate analog 2-amino-4-phosphonobutyrate antagonizes synaptic transmission from cones to horizontal cells in the goldfish retina. Proc Natl Acad Sci U S A. 1989 Mar; 86(5):1726-30. PMID: 2537984; PMCID: PMC286774.
    69. Ayoub GS, Korenbrot JI, Copenhagen D. Release of endogenous glutamate from isolated cone photoreceptors of the lizard. Neurosci Res Suppl. 1989; 10:S47-55. PMID: 2574433.
      View in: PubMed
    70. Belgum JH, Copenhagen D. Synaptic transfer of rod signals to horizontal and bipolar cells in the retina of the toad (Bufo marinus). J Physiol. 1988 Feb; 396:225-45. PMID: 3137327; PMCID: PMC1192043.
    71. Copenhagen D, Donner K, Reuter T. Ganglion cell performance at absolute threshold in toad retina: effects of dark events in rods. J Physiol. 1987 Dec; 393:667-80. PMID: 3128660; PMCID: PMC1192417.
    72. Copenhagen D, Green DG. Spatial spread of adaptation within the cone network of turtle retina. J Physiol. 1987 Dec; 393:763-76. PMID: 3446810; PMCID: PMC1192422.
    73. Mittman S, Flaming DG, Copenhagen D, Belgum JH. Bubble pressure measurement of micropipet tip outer diameter. J Neurosci Methods. 1987 Dec; 22(2):161-6. PMID: 3437778.
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    74. Korenbrot JI, Perry R, Copenhagen D. Development and characterization of a polymer gel with an immobilized enzyme to measure L-glutamate. Anal Biochem. 1987 Feb 15; 161(1):187-99. PMID: 2883910.
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    75. Nawy S, Copenhagen D. Multiple classes of glutamate receptor on depolarizing bipolar cells in retina. Nature. 1987 Jan 1-7; 325(6099):56-8. PMID: 3025746.
      View in: PubMed
    76. Reuter T, Donner K, Copenhagen D. Does the random distribution of discrete photoreceptor events limit the sensitivity of the retina? Neurosci Res Suppl. 1986; 4:S163-80. PMID: 3022204.
      View in: PubMed
    77. Copenhagen D, Green DG. The absence of spread of adaptation between rod photoreceptors in turtle retina. J Physiol. 1985 Dec; 369:161-81. PMID: 4093878; PMCID: PMC1192642.
    78. Irvine AR, Copenhagen D. The focal nature of retinal illumination from the operating microscope. Arch Ophthalmol. 1985 Apr; 103(4):549-50. PMID: 3985837.
      View in: PubMed
    79. Ashmore JF, Copenhagen D. An analysis of transmission from cones to hyperpolarizing bipolar cells in the retina of the turtle. J Physiol. 1983 Jul; 340:569-97. PMID: 6310101; PMCID: PMC1199228.
    80. Copenhagen D, Ashmore JF, Schnapf JK. Kinetics of synaptic transmission from photoreceptors to horizontal and bipolar cells in turtle retina. Vision Res. 1983; 23(4):363-9. PMID: 6308900.
      View in: PubMed
    81. Schnapf JL, Copenhagen D. Differences in the kinetics of rod and cone synaptic transmission. Nature. 1982 Apr 29; 296(5860):862-4. PMID: 6280070.
      View in: PubMed
    82. Leeper HF, Copenhagen D. Horizontal cells in turtle retina: structure, synaptic connections, and visual processing. Prog Clin Biol Res. 1982; 113:77-104. PMID: 6762566.
      View in: PubMed
    83. Ashmore JF, Copenhagen D. Different postsynaptic events in two types of retinal bipolar cell. Nature. 1980 Nov 06; 288(5786):84-6. PMID: 6253819.
      View in: PubMed
    84. Copenhagen D, Owen WG. Current-voltage relations in the rod photoreceptor network of the turtle retina. J Physiol. 1980 Nov; 308:159-84. PMID: 7230014; PMCID: PMC1274543.
    85. Leeper HF, Copenhagen D. Mixed rod-cone responses in horizontal cells of snapping turtle retina. Vision Res. 1979; 19(4):407-12. PMID: 473609.
      View in: PubMed
    86. Leeper HF, Normann RA, Copenhagen D. Evidence for passive electrotonic interactions in red rods of toad retina. Nature. 1978 Sep 21; 275(5677):234-6. PMID: 99667.
      View in: PubMed
    87. Copenhagen D, Owen WG. Functional characteristics of lateral interactions between rods in the retina of the snapping turtle. J Physiol. 1976 Jul; 259(2):251-82. PMID: 986460; PMCID: PMC1309028.
    88. Copenhagen D, Owen WG. Coupling between rod photoreceptors in a vertebrate retina. Nature. 1976 Mar 04; 260(5546):57-9. PMID: 1264196.
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    89. Copenhagen D. Time course of threshold elevation in on-off ganglion cells of Necturus retina: effects of lateral interactions. Vision Res. 1975 May; 15(5):573-81. PMID: 1136170.
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    90. Werblin FS, Copenhagen D. Control of retinal sensitivity. 3. Lateral interactions at the inner plexiform layer. J Gen Physiol. 1974 Jan; 63(1):88-110. PMID: 4359065; PMCID: PMC2203538.
    91. Copenhagen D, Vogelhut P. Study of valveless, nonocclusive pump. J Assoc Adv Med Instrum. 1969 Mar; 3(2):87-90. PMID: 5293843.
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