메뉴 건너뛰기




Volumn 8, Issue , 2012, Pages 27-34

Reduced reward-related probability learning in schizophrenia patients

Author keywords

Motivation; Punishment; Reinforcement learning; Reward

Indexed keywords

CLOZAPINE; OLANZAPINE; QUETIAPINE; RISPERIDONE; ZUCLOPENTHIXOL;

EID: 84856152286     PISSN: 11766328     EISSN: 11782021     Source Type: Journal    
DOI: 10.2147/ndt.s26243     Document Type: Article
Times cited : (25)

References (51)
  • 1
    • 0034988599 scopus 로고    scopus 로고
    • Functional imaging of neural responses to expectancy and experience of monetary gains and losses
    • Breiter HC, Aharon I, Kahneman D, Dale A, Shizgal P. Functional imaging of neural responses to expectancy and experience of monetary gains and losses. Neuron. 2001;30(2):619-639.
    • (2001) Neuron , vol.30 , Issue.2 , pp. 619-639
    • Breiter, H.C.1    Aharon, I.2    Kahneman, D.3    Dale, A.4    Shizgal, P.5
  • 3
    • 53849140439 scopus 로고    scopus 로고
    • Reward-related processing in the human brain: Developmental considerations
    • Fareri DS, Martin LN, Delgado MR. Reward-related processing in the human brain: developmental considerations. Dev Psychopathol. 2008;20(4):1191-1211.
    • (2008) Dev Psychopathol , vol.20 , Issue.4 , pp. 1191-1211
    • Fareri, D.S.1    Martin, L.N.2    Delgado, M.R.3
  • 4
    • 0028927382 scopus 로고
    • Distributed modular architectures linking basal ganglia, cerebellum, and cerebral cortex: Their role in planning and controlling action
    • Houk JC, Wise SP. Distributed modular architectures linking basal ganglia, cerebellum, and cerebral cortex: their role in planning and controlling action. Cereb Cortex. 1995;5(2):95-110.
    • (1995) Cereb Cortex , vol.5 , Issue.2 , pp. 95-110
    • Houk, J.C.1    Wise, S.P.2
  • 5
    • 0035871327 scopus 로고    scopus 로고
    • Predictability modulates human brain response to reward
    • Berns GS, McClure SM, Pagnoni G, Montague PR. Predictability modulates human brain response to reward. J Neurosci. 2001;21(8):2793-2798.
    • (2001) J Neurosci , vol.21 , Issue.8 , pp. 2793-2798
    • Berns, G.S.1    McClure, S.M.2    Pagnoni, G.3    Montague, P.R.4
  • 6
    • 0037650217 scopus 로고    scopus 로고
    • Temporal prediction errors in a passive learning task activate human striatum
    • McClure SM, Berns GS, Montague PR. Temporal prediction errors in a passive learning task activate human striatum. Neuron. 2003;38(2):339-346.
    • (2003) Neuron , vol.38 , Issue.2 , pp. 339-346
    • McClure, S.M.1    Berns, G.S.2    Montague, P.R.3
  • 7
    • 0037987978 scopus 로고    scopus 로고
    • Temporal difference models and reward-related learning in the human brain
    • O'Doherty JP, Dayan P, Friston K, Critchley H, Dolan RJ. Temporal difference models and reward-related learning in the human brain. Neuron. 2003;38(2):329-337.
    • (2003) Neuron , vol.38 , Issue.2 , pp. 329-337
    • O'Doherty, J.P.1    Dayan, P.2    Friston, K.3    Critchley, H.4    Dolan, R.J.5
  • 8
    • 77953227595 scopus 로고    scopus 로고
    • Dopaminergic dysfunction in schizophrenia: Salience attribution revisited
    • Heinz A, Schlagenhauf F. Dopaminergic dysfunction in schizophrenia: salience attribution revisited. Schizophr Bull. 2010;36(3):472-485.
    • (2010) Schizophr Bull , vol.36 , Issue.3 , pp. 472-485
    • Heinz, A.1    Schlagenhauf, F.2
  • 9
    • 39949085594 scopus 로고    scopus 로고
    • World Psychiatric Association Pharmacopsychiatry Section statement on comparative effectiveness of antipsychotics in the treatment of schizophrenia
    • Tandon R, Belmaker RH, Gattaz WF, et al. World Psychiatric Association Pharmacopsychiatry Section statement on comparative effectiveness of antipsychotics in the treatment of schizophrenia. Schizophr Res. 2008;100(1-3):20-38.
    • (2008) Schizophr Res , vol.100 , Issue.1-3 , pp. 20-38
    • Tandon, R.1    Belmaker, R.H.2    Gattaz, W.F.3
  • 10
    • 39449124914 scopus 로고    scopus 로고
    • Substantia nigra/ventral tegmental reward prediction error disruption in psychosis
    • Murray GK, Corlett PR, Clark L, et al. Substantia nigra/ventral tegmental reward prediction error disruption in psychosis. Mol Psychiatry. 2008;13(3):239, 267-276.
    • (2008) Mol Psychiatry , vol.13 , Issue.3
    • Murray, G.K.1    Corlett, P.R.2    Clark, L.3
  • 11
    • 0031873453 scopus 로고    scopus 로고
    • Anhedonia, positive and negative affect, and social functioning in schizophrenia
    • Blanchard JJ, Mueser KT, Bellack AS. Anhedonia, positive and negative affect, and social functioning in schizophrenia. Schizophr Bull. 1998;24(3):413-424.
    • (1998) Schizophr Bull , vol.24 , Issue.3 , pp. 413-424
    • Blanchard, J.J.1    Mueser, K.T.2    Bellack, A.S.3
  • 12
    • 33747172828 scopus 로고    scopus 로고
    • Anhedonia in schizophrenia
    • Wolf DH. Anhedonia in schizophrenia. Curr Psychiatry Rep. 2006;8(4):322-328.
    • (2006) Curr Psychiatry Rep , vol.8 , Issue.4 , pp. 322-328
    • Wolf, D.H.1
  • 13
    • 34249320170 scopus 로고    scopus 로고
    • Anhedonia in schizophrenia: Distinctions between anticipatory and consummatory pleasure
    • Gard DE, Kring AM, Gard MG, Horan WP, Green MF. Anhedonia in schizophrenia: distinctions between anticipatory and consummatory pleasure. Schizophr Res. 2007;93(1-3):253-260.
    • (2007) Schizophr Res , vol.93 , Issue.1-3 , pp. 253-260
    • Gard, D.E.1    Kring, A.M.2    Gard, M.G.3    Horan, W.P.4    Green, M.F.5
  • 14
    • 34548504092 scopus 로고    scopus 로고
    • Selective reinforcement learning deficits in schizophrenia support predictions from computational models of striatal-cortical dysfunction
    • Waltz JA, Frank MJ, Robinson BM, Gold JM. Selective reinforcement learning deficits in schizophrenia support predictions from computational models of striatal-cortical dysfunction. Biol Psychiatry. 2007;62(7):756-764.
    • (2007) Biol Psychiatry , vol.62 , Issue.7 , pp. 756-764
    • Waltz, J.A.1    Frank, M.J.2    Robinson, B.M.3    Gold, J.M.4
  • 15
    • 70349567636 scopus 로고    scopus 로고
    • Turning it upside down: Areas of preserved cognitive function in schizophrenia
    • Gold JM, Hahn B, Strauss GP, Waltz JA. Turning it upside down: areas of preserved cognitive function in schizophrenia. Neuropsychol Rev. 2009;19(3):294-311.
    • (2009) Neuropsychol Rev , vol.19 , Issue.3 , pp. 294-311
    • Gold, J.M.1    Hahn, B.2    Strauss, G.P.3    Waltz, J.A.4
  • 16
    • 40349102044 scopus 로고    scopus 로고
    • Associative learning in deficit and nondeficit schizophrenia
    • Farkas M, Polgár P, Kelemen O, et al. Associative learning in deficit and nondeficit schizophrenia. Neuroreport. 2008;19(1):55-58.
    • (2008) Neuroreport , vol.19 , Issue.1 , pp. 55-58
    • Farkas, M.1    Polgár, P.2    Kelemen, O.3
  • 17
    • 79952316450 scopus 로고    scopus 로고
    • General functioning predicts reward and punishment learning in schizophrenia
    • Somlai Z, Moustafa AA, Kéri S, Myers CE, Gluck MA. General functioning predicts reward and punishment learning in schizophrenia. Schizophr Res. 2011;127(1-3):131-136.
    • (2011) Schizophr Res , vol.127 , Issue.1-3 , pp. 131-136
    • Somlai, Z.1    Moustafa, A.A.2    Kéri, S.3    Myers, C.E.4    Gluck, M.A.5
  • 18
    • 54149091651 scopus 로고    scopus 로고
    • Reward processing in schizophrenia: A deficit in the representation of value
    • Gold JM, Waltz JA, Prentice KJ, Morris SE, Heerey EA. Reward processing in schizophrenia: a deficit in the representation of value. Schizophr Bull. 2008;34(5):835-847.
    • (2008) Schizophr Bull , vol.34 , Issue.5 , pp. 835-847
    • Gold, J.M.1    Waltz, J.A.2    Prentice, K.J.3    Morris, S.E.4    Heerey, E.A.5
  • 19
    • 11844296013 scopus 로고    scopus 로고
    • An fMRI study of rewardrelated probability learning
    • Delgado MR, Miller MM, Inati S, Phelps EA. An fMRI study of rewardrelated probability learning. Neuroimage. 2005;24(3):862-873.
    • (2005) Neuroimage , vol.24 , Issue.3 , pp. 862-873
    • Delgado, M.R.1    Miller, M.M.2    Inati, S.3    Phelps, E.A.4
  • 20
    • 0023606101 scopus 로고
    • The Positive and Negative Syndrome Scale (PANSS) for schizophrenia
    • Kay SR, Fiszbein A, Opler LA. The Positive and Negative Syndrome Scale (PANSS) for schizophrenia. Schizophr Bull. 1987;13(2):261-276.
    • (1987) Schizophr Bull , vol.13 , Issue.2 , pp. 261-276
    • Kay, S.R.1    Fiszbein, A.2    Opler, L.A.3
  • 22
    • 33646683808 scopus 로고    scopus 로고
    • Functions of frontostriatal systems in cognition: Comparative neuropsychopharmacological studies in rats, monkeys and humans
    • Chudasama Y, Robbins TW. Functions of frontostriatal systems in cognition: comparative neuropsychopharmacological studies in rats, monkeys and humans. Biol Psychol. 2006;73(1):19-38.
    • (2006) Biol Psychol , vol.73 , Issue.1 , pp. 19-38
    • Chudasama, Y.1    Robbins, T.W.2
  • 23
    • 7044241190 scopus 로고    scopus 로고
    • Neurocognitive mechanisms of cognitive control: The role of prefrontal cortex in action selection, response inhibition, performance monitoring, and reward-based learning
    • Ridderinkhof KR, van den Wildenberg WP, Segalowitz SJ, Carter CS. Neurocognitive mechanisms of cognitive control: the role of prefrontal cortex in action selection, response inhibition, performance monitoring, and reward-based learning. Brain Cogn. 2004;56(2):129-140.
    • (2004) Brain Cogn , vol.56 , Issue.2 , pp. 129-140
    • Ridderinkhof, K.R.1    van den Wildenberg, W.P.2    Segalowitz, S.J.3    Carter, C.S.4
  • 24
    • 69249145260 scopus 로고    scopus 로고
    • Mechanisms underlying psychosis and antipsychotic treatment response in schizophrenia: Insights from PET and SPECT imaging
    • Howes OD, Egerton A, Allan V, McGuire P, Stokes P, Kapur S. Mechanisms underlying psychosis and antipsychotic treatment response in schizophrenia: insights from PET and SPECT imaging. Curr Pharm Des. 2009;15(22):2550-2559.
    • (2009) Curr Pharm Des , vol.15 , Issue.22 , pp. 2550-2559
    • Howes, O.D.1    Egerton, A.2    Allan, V.3    McGuire, P.4    Stokes, P.5    Kapur, S.6
  • 25
    • 45849147684 scopus 로고    scopus 로고
    • Switching schizophrenia patients from typical neuroleptics to olanzapine: Effects on BOLD response during attention and working memory
    • Schlagenhauf F, Wüstenberg T, Schmack K, et al. Switching schizophrenia patients from typical neuroleptics to olanzapine: effects on BOLD response during attention and working memory. Eur Neuropsychopharmacol. 2008;18(8):589-599.
    • (2008) Eur Neuropsychopharmacol , vol.18 , Issue.8 , pp. 589-599
    • Schlagenhauf, F.1    Wüstenberg, T.2    Schmack, K.3
  • 26
    • 0023507317 scopus 로고
    • Further evidence for dementia of the prefrontal type in schizophrenia? A controlled study of teaching the Wisconsin Card Sorting Test
    • Goldberg TE, Weinberger DR, Berman KF, Pliskin NH, Podd MH. Further evidence for dementia of the prefrontal type in schizophrenia? A controlled study of teaching the Wisconsin Card Sorting Test. Arch Gen Psychiatry. 1987;44(11):1008-1014.
    • (1987) Arch Gen Psychiatry , vol.44 , Issue.11 , pp. 1008-1014
    • Goldberg, T.E.1    Weinberger, D.R.2    Berman, K.F.3    Pliskin, N.H.4    Podd, M.H.5
  • 27
    • 0034282831 scopus 로고    scopus 로고
    • Effects of contextual processing on visual conditional associative learning in schizophrenia
    • Gold JM, Bish JA, Iannone VN, Hobart MP, Queern CA, Buchanan RW. Effects of contextual processing on visual conditional associative learning in schizophrenia. Biol Psychiatry. 2000;48(5):406-414.
    • (2000) Biol Psychiatry , vol.48 , Issue.5 , pp. 406-414
    • Gold, J.M.1    Bish, J.A.2    Iannone, V.N.3    Hobart, M.P.4    Queern, C.A.5    Buchanan, R.W.6
  • 28
    • 0023613615 scopus 로고
    • Conditional associative learning in drug-free schizophrenic patients
    • Kemali D, Maj M, Galderisi S, Monteleone P, Mucci A. Conditional associative learning in drug-free schizophrenic patients. Neuropsychobiology. 1987;17(1-2):30-34.
    • (1987) Neuropsychobiology , vol.17 , Issue.1-2 , pp. 30-34
    • Kemali, D.1    Maj, M.2    Galderisi, S.3    Monteleone, P.4    Mucci, A.5
  • 29
    • 21644463942 scopus 로고    scopus 로고
    • Habit learning and the genetics of the dopamine D3 receptor: Evidence from patients with schizophrenia and healthy controls
    • Kéri S, Juhász A, Rimanóczy A, et al. Habit learning and the genetics of the dopamine D3 receptor: evidence from patients with schizophrenia and healthy controls. Behav Neurosci. 2005;119(3):687-693.
    • (2005) Behav Neurosci , vol.119 , Issue.3 , pp. 687-693
    • Kéri, S.1    Juhász, A.2    Rimanóczy, A.3
  • 30
    • 0342470562 scopus 로고    scopus 로고
    • Schizophrenics know more than they can tell: Probabilistic classification learning in schizophrenia
    • Kéri S, Kelemen O, Szekeres G, et al. Schizophrenics know more than they can tell: probabilistic classification learning in schizophrenia. Psychol Med. 2000;30(1):149-155.
    • (2000) Psychol Med , vol.30 , Issue.1 , pp. 149-155
    • Kéri, S.1    Kelemen, O.2    Szekeres, G.3
  • 31
    • 0036860844 scopus 로고    scopus 로고
    • Habit and skill learning in schizophrenia: Evidence of normal striatal processing with abnormal cortical input
    • Weickert TW, Terrazas A, Bigelow LB, et al. Habit and skill learning in schizophrenia: evidence of normal striatal processing with abnormal cortical input. Learn Mem. 2002;9(6):430-442.
    • (2002) Learn Mem , vol.9 , Issue.6 , pp. 430-442
    • Weickert, T.W.1    Terrazas, A.2    Bigelow, L.B.3
  • 32
    • 0028389896 scopus 로고
    • Implicit learning
    • Seger CA. Implicit learning. Psychol Bull. 1994;115(2):163-196.
    • (1994) Psychol Bull , vol.115 , Issue.2 , pp. 163-196
    • Seger, C.A.1
  • 33
    • 0037223711 scopus 로고    scopus 로고
    • Psychosis as a state of aberrant salience: A framework linking biology, phenomenology, and pharmacology in schizophrenia
    • Kapur S. Psychosis as a state of aberrant salience: a framework linking biology, phenomenology, and pharmacology in schizophrenia. Am J Psychiatry. 2003;160(1):13-23.
    • (2003) Am J Psychiatry , vol.160 , Issue.1 , pp. 13-23
    • Kapur, S.1
  • 34
    • 59649119220 scopus 로고    scopus 로고
    • Neural correlates of probabilistic category learning in patients with schizophrenia
    • Weickert TW, Goldberg TE, Callicott JH, et al. Neural correlates of probabilistic category learning in patients with schizophrenia. J Neurosci. 2009;29(4):1244-1254.
    • (2009) J Neurosci , vol.29 , Issue.4 , pp. 1244-1254
    • Weickert, T.W.1    Goldberg, T.E.2    Callicott, J.H.3
  • 35
    • 35548988811 scopus 로고    scopus 로고
    • Impaired strategic decision making in schizophrenia
    • Kim H, Lee D, Shin YM, Chey J. Impaired strategic decision making in schizophrenia. Brain Res. 2007;1180:90-100.
    • (2007) Brain Res , vol.1180 , pp. 90-100
    • Kim, H.1    Lee, D.2    Shin, Y.M.3    Chey, J.4
  • 36
    • 75249101577 scopus 로고    scopus 로고
    • Altered activation in association with reward-related trial-and-error learning in patients with schizophrenia
    • Koch K, Schachtzabel C, Wagner G, et al. Altered activation in association with reward-related trial-and-error learning in patients with schizophrenia. Neuroimage. 2010;50(1):223-232.
    • (2010) Neuroimage , vol.50 , Issue.1 , pp. 223-232
    • Koch, K.1    Schachtzabel, C.2    Wagner, G.3
  • 37
    • 0030978052 scopus 로고    scopus 로고
    • Activation of the human brain by monetary reward
    • Thut G, Schultz W, Roelcke U, et al. Activation of the human brain by monetary reward. Neuroreport. 1997;8(5):1225-1228.
    • (1997) Neuroreport , vol.8 , Issue.5 , pp. 1225-1228
    • Thut, G.1    Schultz, W.2    Roelcke, U.3
  • 38
    • 0035807944 scopus 로고    scopus 로고
    • Dissociation of reward anticipation and outcome with event-related fMRI
    • Knutson B, Fong GW, Adams CM, Varner JL, Hommer D. Dissociation of reward anticipation and outcome with event-related fMRI. Neuroreport. 2001;12(17):3683-3687.
    • (2001) Neuroreport , vol.12 , Issue.17 , pp. 3683-3687
    • Knutson, B.1    Fong, G.W.2    Adams, C.M.3    Varner, J.L.4    Hommer, D.5
  • 39
    • 33847252007 scopus 로고    scopus 로고
    • Failure of positive but not negative emotional valence to enhance memory in schizophrenia
    • Herbener ES, Rosen C, Khine T, Sweeney JA. Failure of positive but not negative emotional valence to enhance memory in schizophrenia. J Abnorm Psychol. 2007;116(1):43-55.
    • (2007) J Abnorm Psychol , vol.116 , Issue.1 , pp. 43-55
    • Herbener, E.S.1    Rosen, C.2    Khine, T.3    Sweeney, J.A.4
  • 40
    • 34249007114 scopus 로고    scopus 로고
    • Patients with schizophrenia demonstrate dissociation between affective experience and motivated behavior
    • Heerey EA, Gold JM. Patients with schizophrenia demonstrate dissociation between affective experience and motivated behavior. J Abnorm Psychol. 2007;116(2):268-278.
    • (2007) J Abnorm Psychol , vol.116 , Issue.2 , pp. 268-278
    • Heerey, E.A.1    Gold, J.M.2
  • 41
    • 33747198701 scopus 로고    scopus 로고
    • Does anhedonia in schizophrenia reflect faulty memory for subjectively experienced emotions?
    • Horan WP, Green MF, Kring AM, Nuechterlein KH. Does anhedonia in schizophrenia reflect faulty memory for subjectively experienced emotions? J Abnorm Psychol. 2006;115(3):496-508.
    • (2006) J Abnorm Psychol , vol.115 , Issue.3 , pp. 496-508
    • Horan, W.P.1    Green, M.F.2    Kring, A.M.3    Nuechterlein, K.H.4
  • 42
    • 39049132767 scopus 로고    scopus 로고
    • Learning-related changes in brain activity following errors and performance feedback in schizophrenia
    • Morris SE, Heerey EA, Gold JM, Holroyd CB. Learning-related changes in brain activity following errors and performance feedback in schizophrenia. Schizophr Res. 2008;99(1-3):274-285.
    • (2008) Schizophr Res , vol.99 , Issue.1-3 , pp. 274-285
    • Morris, S.E.1    Heerey, E.A.2    Gold, J.M.3    Holroyd, C.B.4
  • 45
    • 0033764334 scopus 로고    scopus 로고
    • Physiological dysfunction of the dorsolateral prefrontal cortex in schizophrenia revisited
    • Callicott JH, Bertolino A, Mattay VS, et al. Physiological dysfunction of the dorsolateral prefrontal cortex in schizophrenia revisited. Cereb Cortex. 2000;10(11):1078-1092.
    • (2000) Cereb Cortex , vol.10 , Issue.11 , pp. 1078-1092
    • Callicott, J.H.1    Bertolino, A.2    Mattay, V.S.3
  • 46
    • 39049151124 scopus 로고    scopus 로고
    • How to find the way out from four rooms? The learning of "chaining" associations may shed light on the neuropsychology of the deficit syndrome of schizophrenia
    • Polgár P, Farkas M, Nagy O, et al. How to find the way out from four rooms? The learning of "chaining" associations may shed light on the neuropsychology of the deficit syndrome of schizophrenia. Schizophr Res. 2008;99(1-3):200-207.
    • (2008) Schizophr Res , vol.99 , Issue.1-3 , pp. 200-207
    • Polgár, P.1    Farkas, M.2    Nagy, O.3
  • 47
    • 0023883767 scopus 로고
    • Deficit and nondeficit forms of schizophrenia: The concept
    • Carpenter WT Jr, Heinrichs DW, Wagman AM. Deficit and nondeficit forms of schizophrenia: the concept. Am J Psychiatry. 1988;145(5):578-583.
    • (1988) Am J Psychiatry , vol.145 , Issue.5 , pp. 578-583
    • Carpenter Jr., W.T.1    Heinrichs, D.W.2    Wagman, A.M.3
  • 48
    • 77955054491 scopus 로고    scopus 로고
    • Acute D2 receptor blockade induces rapid, reversible remodeling in human cortical-striatal circuits
    • Tost H, Braus DF, Hakimi S, et al. Acute D2 receptor blockade induces rapid, reversible remodeling in human cortical-striatal circuits. Nat Neurosci. 2010;13(8):920-922.
    • (2010) Nat Neurosci , vol.13 , Issue.8 , pp. 920-922
    • Tost, H.1    Braus, D.F.2    Hakimi, S.3
  • 49
    • 70449641192 scopus 로고    scopus 로고
    • Do antipsychotic drugs affect brain structure? A systematic and critical review of MRI findings
    • Navari S, Dazzan P. Do antipsychotic drugs affect brain structure? A systematic and critical review of MRI findings. Psychol Med. 2009;39(11):1763-1777.
    • (2009) Psychol Med , vol.39 , Issue.11 , pp. 1763-1777
    • Navari, S.1    Dazzan, P.2
  • 50
    • 33745741423 scopus 로고    scopus 로고
    • Dysfunction of ventral striatal reward prediction in schizophrenic patients treated with typical, not atypical, neuroleptics
    • Juckel G, Schlagenhauf F, Koslowski M, et al. Dysfunction of ventral striatal reward prediction in schizophrenic patients treated with typical, not atypical, neuroleptics. Psychopharmacology (Berl). 2006;187(2):222-228.
    • (2006) Psychopharmacology (Berl) , vol.187 , Issue.2 , pp. 222-228
    • Juckel, G.1    Schlagenhauf, F.2    Koslowski, M.3
  • 51
    • 34147100517 scopus 로고    scopus 로고
    • Intellectual functioning and memory deficits in schizophrenia
    • Ruiz JC, Soler MJ, Fuentes I, Tomás P. Intellectual functioning and memory deficits in schizophrenia. Compr Psychiatry. 2007;48(3):276-282.
    • (2007) Compr Psychiatry , vol.48 , Issue.3 , pp. 276-282
    • Ruiz, J.C.1    Soler, M.J.2    Fuentes, I.3    Tomás, P.4


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.