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Volumn 133, Issue 2, 2013, Pages 970-981

Reduction of internal noise in auditory perceptual learning

Author keywords

[No Author keywords available]

Indexed keywords

EFFICIENCY; ENCODING (SYMBOLS); NOISE ABATEMENT; SIGNAL ENCODING;

EID: 84873362787     PISSN: 00014966     EISSN: None     Source Type: Journal    
DOI: 10.1121/1.4773864     Document Type: Article
Times cited : (26)

References (56)
  • 1
    • 6344276666 scopus 로고    scopus 로고
    • Informational masking in hearing-impaired and normal-hearing listeners: Sensation level and decision weights
    • 10.1121/1.1784437
    • Alexander, J., and Lutfi, R. (2004). " Informational masking in hearing-impaired and normal-hearing listeners: Sensation level and decision weights.," J. Acoust. Soc. Am. 116, 2234-2247. 10.1121/1.1784437
    • (2004) J. Acoust. Soc. Am. , vol.116 , pp. 2234-2247
    • Alexander, J.1    Lutfi, R.2
  • 2
    • 19344374935 scopus 로고    scopus 로고
    • Auditory frequency discrimination learning is affected by stimulus variability
    • 10.3758/BF03193525
    • Amitay, S., Hawkey, D., and Moore, D. (2005). " Auditory frequency discrimination learning is affected by stimulus variability.," Atten. Percept. Psychophys. 67, 691-698. 10.3758/BF03193525
    • (2005) Atten. Percept. Psychophys. , vol.67 , pp. 691-698
    • Amitay, S.1    Hawkey, D.2    Moore, D.3
  • 3
    • 1042276659 scopus 로고    scopus 로고
    • A molecular description of profile analysis: Decision weights and internal noise
    • 10.1121/1.1639904
    • Berg, B. (2004). " A molecular description of profile analysis: Decision weights and internal noise.," J. Acoust. Soc. Am. 115, 822-829. 10.1121/1.1639904
    • (2004) J. Acoust. Soc. Am. , vol.115 , pp. 822-829
    • Berg, B.1
  • 4
    • 0025062904 scopus 로고
    • Spectral weights in profile listening
    • 10.1121/1.399725
    • Berg, B., and Green, D. (1990). " Spectral weights in profile listening.," J. Acoust. Soc. Am. 88, 758-766. 10.1121/1.399725
    • (1990) J. Acoust. Soc. Am. , vol.88 , pp. 758-766
    • Berg, B.1    Green, D.2
  • 5
    • 0030612822 scopus 로고    scopus 로고
    • The psychophysics toolbox
    • 10.1163/156856897X00357
    • Brainard, D. (1997). " The psychophysics toolbox.," Spat. Vis. 10, 433-436. 10.1163/156856897X00357
    • (1997) Spat. Vis. , vol.10 , pp. 433-436
    • Brainard, D.1
  • 7
    • 0023987117 scopus 로고
    • Visual signal detection. IV. observer inconsistency
    • 10.1364/JOSAA.5.000617
    • Burgess, A., and Colborne, B. (1988). " Visual signal detection. IV. observer inconsistency.," J. Opt. Soc. Am. A 5, 617-627. 10.1364/JOSAA.5.000617
    • (1988) J. Opt. Soc. Am. A , vol.5 , pp. 617-627
    • Burgess, A.1    Colborne, B.2
  • 8
    • 33750346703 scopus 로고    scopus 로고
    • Development and the role of internal noise in detection and discrimination thresholds with narrow band stimuli
    • 10.1121/1.2354024
    • Buss, E., Hall, J., III, and Grose, J. (2006). " Development and the role of internal noise in detection and discrimination thresholds with narrow band stimuli.," J. Acoust. Soc. Am. 120, 2777-2788. 10.1121/1.2354024
    • (2006) J. Acoust. Soc. Am. , vol.120 , pp. 2777-2788
    • Buss, E.1    Hall Iii, J.2    Grose, J.3
  • 9
    • 59849110193 scopus 로고    scopus 로고
    • Psychometric functions for pure tone intensity discrimination: Slope differences in school-aged children and adults
    • 10.1121/1.3050273
    • Buss, E., Hall, J., III, and Grose, J. (2009). " Psychometric functions for pure tone intensity discrimination: Slope differences in school-aged children and adults.," J. Acoust. Soc. Am. 125, 1050-1058. 10.1121/1.3050273
    • (2009) J. Acoust. Soc. Am. , vol.125 , pp. 1050-1058
    • Buss, E.1    Hall Iii, J.2    Grose, J.3
  • 10
    • 14644419641 scopus 로고    scopus 로고
    • Learning letter identification in peripheral vision
    • 10.1016/j.visres.2004.11.021
    • Chung, S., Levi, D., and Tjan, B. (2005). " Learning letter identification in peripheral vision.," Vis. Res. 45, 1399-1412. 10.1016/j.visres.2004.11.021
    • (2005) Vis. Res. , vol.45 , pp. 1399-1412
    • Chung, S.1    Levi, D.2    Tjan, B.3
  • 11
    • 34249753618 scopus 로고
    • Support vector machines
    • Cortes, C., and Vapnik, V. N. (1995). " Support vector machines.," Mach. Learn. 20, 273-297.
    • (1995) Mach. Learn. , vol.20 , pp. 273-297
    • Cortes, C.1    Vapnik, V.N.2
  • 12
    • 0026666848 scopus 로고
    • Spectral and temporal weights in spectral-shape discrimination
    • 10.1121/1.403928
    • Dai, H., and Berg, B. (1992). " Spectral and temporal weights in spectral-shape discrimination.," J. Acoust. Soc. Am. 92, 1346-1355. 10.1121/1.403928
    • (1992) J. Acoust. Soc. Am. , vol.92 , pp. 1346-1355
    • Dai, H.1    Berg, B.2
  • 13
    • 79960670695 scopus 로고    scopus 로고
    • Psychometric functions for pure-tone frequency discrimination
    • 10.1121/1.3598448
    • Dai, H., and Micheyl, C. (2011). " Psychometric functions for pure-tone frequency discrimination.," J. Acoust. Soc. Am. 130, 263-272. 10.1121/1.3598448
    • (2011) J. Acoust. Soc. Am. , vol.130 , pp. 263-272
    • Dai, H.1    Micheyl, C.2
  • 14
    • 79959697054 scopus 로고    scopus 로고
    • On the theoretical error bound for estimating psychometric functions
    • 10.3758/s13414-010-0050-1
    • Dai, H., and Richards, V. (2011). " On the theoretical error bound for estimating psychometric functions.," Atten. Percept. Psychophys. 73, 919-926. 10.3758/s13414-010-0050-1
    • (2011) Atten. Percept. Psychophys. , vol.73 , pp. 919-926
    • Dai, H.1    Richards, V.2
  • 16
    • 0022117156 scopus 로고
    • Perceptual learning in frequency discrimination
    • 10.1121/1.393034
    • Demany, L. (1985). " Perceptual learning in frequency discrimination.," J. Acoust. Soc. Am. 78, 1118-1120. 10.1121/1.393034
    • (1985) J. Acoust. Soc. Am. , vol.78 , pp. 1118-1120
    • Demany, L.1
  • 17
    • 0010289851 scopus 로고
    • Mechanical properties of sensory hair bundles are reflected in their Brownian motion measured with a laser differential interferometer
    • 10.1073/pnas.86.14.5371
    • Denk, W., Webb, W., and Hudspeth, A. (1989). " Mechanical properties of sensory hair bundles are reflected in their Brownian motion measured with a laser differential interferometer.," Proc. Natl. Acad. Sci. U.S.A. 86, 5371-5375. 10.1073/pnas.86.14.5371
    • (1989) Proc. Natl. Acad. Sci. U.S.A. , vol.86 , pp. 5371-5375
    • Denk, W.1    Webb, W.2    Hudspeth, A.3
  • 18
    • 0032506121 scopus 로고    scopus 로고
    • Perceptual learning reflects external noise filtering and internal noise reduction through channel reweighting
    • 10.1073/pnas.95.23.13988
    • Dosher, B., and Lu, Z. (1998). " Perceptual learning reflects external noise filtering and internal noise reduction through channel reweighting.," Proc. Natl. Acad. Sci. U.S.A. 95, 13988-13993. 10.1073/pnas.95.23.13988
    • (1998) Proc. Natl. Acad. Sci. U.S.A. , vol.95 , pp. 13988-13993
    • Dosher, B.1    Lu, Z.2
  • 19
    • 0032988922 scopus 로고    scopus 로고
    • Mechanisms of perceptual learning
    • 10.1016/S0042-6989(99)00059-0
    • Dosher, B., and Lu, Z. (1999). " Mechanisms of perceptual learning.," Vis. Res. 39, 3197-3221. 10.1016/S0042-6989(99)00059-0
    • (1999) Vis. Res. , vol.39 , pp. 3197-3221
    • Dosher, B.1    Lu, Z.2
  • 20
    • 0014553722 scopus 로고
    • Intensity perception. I. preliminary theory of intensity resolution
    • 10.1121/1.1911699
    • Durlach, N., and Braida, L. (1969). " Intensity perception. I. preliminary theory of intensity resolution.," J. Acoust. Soc. Am. 46, 372-383. 10.1121/1.1911699
    • (1969) J. Acoust. Soc. Am. , vol.46 , pp. 372-383
    • Durlach, N.1    Braida, L.2
  • 21
  • 22
    • 0025110885 scopus 로고
    • Derivation of auditory filter shapes from notched-noise data
    • 10.1016/0378-5955(90)90170-T
    • Glasberg, B., and Moore, B. (1990). " Derivation of auditory filter shapes from notched-noise data.," Hear. Res. 47, 103-138. 10.1016/0378-5955(90)90170-T
    • (1990) Hear. Res. , vol.47 , pp. 103-138
    • Glasberg, B.1    Moore, B.2
  • 23
    • 0035028467 scopus 로고    scopus 로고
    • The influence of external and internal noise on the detection of increments and decrements in the level of sinusoids
    • 10.1016/S0378-5955(01)00244-1
    • Glasberg, B., Moore, B., and Peters, R. (2001). " The influence of external and internal noise on the detection of increments and decrements in the level of sinusoids.," Hear. Res. 155, 41-53. 10.1016/S0378-5955(01)00244-1
    • (2001) Hear. Res. , vol.155 , pp. 41-53
    • Glasberg, B.1    Moore, B.2    Peters, R.3
  • 24
    • 0033547445 scopus 로고    scopus 로고
    • Signal but not noise changes with perceptual learning
    • 10.1038/46027
    • Gold, J., Bennett, P., and Sekuler, A. (1999). " Signal but not noise changes with perceptual learning.," Nature 402, 176-178. 10.1038/46027
    • (1999) Nature , vol.402 , pp. 176-178
    • Gold, J.1    Bennett, P.2    Sekuler, A.3
  • 25
    • 1842565185 scopus 로고    scopus 로고
    • Characterizing perceptual learning with external noise
    • 10.1207/s15516709cog2802-3
    • Gold, J., Sekuler, A., and Bennett, P. (2004). " Characterizing perceptual learning with external noise.," Cog. Sci. 28, 167-207. 10.1207/s15516709cog2802-3
    • (2004) Cog. Sci. , vol.28 , pp. 167-207
    • Gold, J.1    Sekuler, A.2    Bennett, P.3
  • 26
    • 0000347130 scopus 로고
    • Consistency of auditory detection judgments
    • 10.1037/h0044520
    • Green, D. (1964). " Consistency of auditory detection judgments.," Psychol. Rev. 71, 392-407. 10.1037/h0044520
    • (1964) Psychol. Rev. , vol.71 , pp. 392-407
    • Green, D.1
  • 27
    • 0029061633 scopus 로고
    • Maximum-likelihood procedures and the inattentive observer
    • 10.1121/1.412390
    • Green, D. (1995). " Maximum-likelihood procedures and the inattentive observer.," J. Acoust. Soc. Am. 97, 3749-3760. 10.1121/1.412390
    • (1995) J. Acoust. Soc. Am. , vol.97 , pp. 3749-3760
    • Green, D.1
  • 29
    • 14844351934 scopus 로고    scopus 로고
    • Early and rapid perceptual learning
    • 10.1038/nn1315
    • Hawkey, D., Amitay, S., and Moore, D. (2004). " Early and rapid perceptual learning.," Nat. Neurosci. 7, 1055-1056. 10.1038/nn1315
    • (2004) Nat. Neurosci. , vol.7 , pp. 1055-1056
    • Hawkey, D.1    Amitay, S.2    Moore, D.3
  • 30
    • 0035487165 scopus 로고    scopus 로고
    • Evaluating auditory performance limits: I. One-parameter discrimination using a computational model for the auditory nerve
    • 10.1162/089976601750541804
    • Heinz, M., Colburn, H., and Carney, L. (2001). " Evaluating auditory performance limits: I. One-parameter discrimination using a computational model for the auditory nerve.," Neural Comput. 13, 2273-2316. 10.1162/089976601750541804
    • (2001) Neural Comput. , vol.13 , pp. 2273-2316
    • Heinz, M.1    Colburn, H.2    Carney, L.3
  • 31
    • 0003141370 scopus 로고
    • Pitch perception
    • edited by B. Moore (Academic, San Diego, CA)
    • Houtsma, A. J. M. (1995). " Pitch perception.," in Hearing, edited by, B. Moore, (Academic, San Diego, CA), pp. 267-296.
    • (1995) Hearing , pp. 267-296
    • Houtsma, A.J.M.1
  • 32
    • 0033974756 scopus 로고    scopus 로고
    • Stochastic properties of cat auditory nerve responses to electric and acoustic stimuli and application to intensity discrimination
    • 10.1121/1.428269
    • Javel, E., and Viemeister, N. (2000). " Stochastic properties of cat auditory nerve responses to electric and acoustic stimuli and application to intensity discrimination.," J. Acoust. Soc. Am. 107, 908-921. 10.1121/1.428269
    • (2000) J. Acoust. Soc. Am. , vol.107 , pp. 908-921
    • Javel, E.1    Viemeister, N.2
  • 33
    • 0142121632 scopus 로고    scopus 로고
    • A measure of internal noise based on sample discrimination
    • 10.1121/1.1610456
    • Jesteadt, W., Nizami, L., and Schairer, K. (2003). " A measure of internal noise based on sample discrimination.," J. Acoust. Soc. Am. 114, 2147-2157. 10.1121/1.1610456
    • (2003) J. Acoust. Soc. Am. , vol.114 , pp. 2147-2157
    • Jesteadt, W.1    Nizami, L.2    Schairer, K.3
  • 34
    • 0035522454 scopus 로고    scopus 로고
    • Measuring, estimating, and understanding the psychometric function: A commentary
    • 10.3758/BF03194552
    • Klein, S. (2001). " Measuring, estimating, and understanding the psychometric function: A commentary.," Atten. Percept. Psychophys. 63, 1421-1455. 10.3758/BF03194552
    • (2001) Atten. Percept. Psychophys. , vol.63 , pp. 1421-1455
    • Klein, S.1
  • 35
    • 15944429397 scopus 로고    scopus 로고
    • What is the signal in noise?
    • 10.1016/j.visres.2005.01.020
    • Levi, D., Klein, S., and Chen, I. (2005). " What is the signal in noise?," Vis. Res. 45, 1835-1846. 10.1016/j.visres.2005.01.020
    • (2005) Vis. Res. , vol.45 , pp. 1835-1846
    • Levi, D.1    Klein, S.2    Chen, I.3
  • 36
    • 39149097826 scopus 로고    scopus 로고
    • Characterizing observers using external noise and observer models: Assessing internal representations with external noise
    • 10.1037/0033-295X.115.1.44
    • Lu, Z., and Dosher, B. (2008). " Characterizing observers using external noise and observer models: Assessing internal representations with external noise.," Psychol. Rev. 115, 44-82. 10.1037/0033-295X.115.1.44
    • (2008) Psychol. Rev. , vol.115 , pp. 44-82
    • Lu, Z.1    Dosher, B.2
  • 37
    • 70449697585 scopus 로고    scopus 로고
    • Mechanisms of perceptual learning
    • 10.1556/LP.1.2009.1.3
    • Lu, Z., and Dosher, B. (2009). " Mechanisms of perceptual learning.," Learn. Per. 1, 19-36. 10.1556/LP.1.2009.1.3
    • (2009) Learn. Per. , vol.1 , pp. 19-36
    • Lu, Z.1    Dosher, B.2
  • 39
    • 0030153431 scopus 로고    scopus 로고
    • Three remarks on perceptual learning
    • 10.1163/156856896X00051
    • Mollon, J., and Danilova, M. (1996). " Three remarks on perceptual learning.," Spat. Vis. 10, 51-58. 10.1163/156856896X00051
    • (1996) Spat. Vis. , vol.10 , pp. 51-58
    • Mollon, J.1    Danilova, M.2
  • 40
    • 84860998185 scopus 로고    scopus 로고
    • Less is more: Latent learning is maximized by shorter training sessions in auditory perceptual learning
    • 10.1371/journal.pone.0036929
    • Molloy, K., Moore, D., Sohoglu, E., and Amitay, S. (2012). " Less is more: Latent learning is maximized by shorter training sessions in auditory perceptual learning.," PLoS One 7, e36929. 10.1371/journal.pone.0036929
    • (2012) PLoS One , vol.7 , pp. 36929
    • Molloy, K.1    Moore, D.2    Sohoglu, E.3    Amitay, S.4
  • 41
    • 40849120494 scopus 로고    scopus 로고
    • Frequency discrimination in children: Perception, learning and attention
    • 10.1016/j.heares.2007.11.013
    • Moore, D., Ferguson, M., Halliday, L., and Riley, A. (2008). " Frequency discrimination in children: Perception, learning and attention.," Hear. Res. 238, 147-154. 10.1016/j.heares.2007.11.013
    • (2008) Hear. Res. , vol.238 , pp. 147-154
    • Moore, D.1    Ferguson, M.2    Halliday, L.3    Riley, A.4
  • 42
    • 40549123182 scopus 로고    scopus 로고
    • Hellinger distance
    • edited by M. Hazewinkel (Kluwer Academic Publishers, Norwell, MA).
    • Nikulin, M. (2001). " Hellinger distance.," in Encyclopaedia of Mathematics, edited by, M. Hazewinkel, (Kluwer Academic Publishers, Norwell, MA).
    • (2001) Encyclopaedia of Mathematics
    • Nikulin, M.1
  • 43
    • 0014705378 scopus 로고
    • Frequency discrimination in the auditory system: Place or periodicity mechanisms?
    • 10.1109/PROC.1970.7727
    • Siebert, W. (1970). " Frequency discrimination in the auditory system: Place or periodicity mechanisms?," Proc. IEEE 58, 723-730. 10.1109/PROC.1970.7727
    • (1970) Proc. IEEE , vol.58 , pp. 723-730
    • Siebert, W.1
  • 44
    • 84870899208 scopus 로고
    • Physiological noise as a low-frequency masker: The cardiac cycle
    • 10.1121/1.1977680
    • Soderquist, D., and Lindsey, J. (1971). " Physiological noise as a low-frequency masker: The cardiac cycle.," J. Acoust. Soc. Am. 50, 143. 10.1121/1.1977680
    • (1971) J. Acoust. Soc. Am. , vol.50 , pp. 143
    • Soderquist, D.1    Lindsey, J.2
  • 45
    • 0019797435 scopus 로고
    • Two procedures for estimating internal noise
    • 10.1121/1.386583
    • Spiegel, M., and Green, D. (1981). " Two procedures for estimating internal noise.," J. Acoust. Soc. Am. 70, 69-73. 10.1121/1.386583
    • (1981) J. Acoust. Soc. Am. , vol.70 , pp. 69-73
    • Spiegel, M.1    Green, D.2
  • 46
    • 0009674492 scopus 로고
    • Multiple observations of signals in noise
    • 10.1121/1.1907745
    • Swets, J. (1959). " Multiple observations of signals in noise.," J. Acoust. Soc. Am. 31, 514-521. 10.1121/1.1907745
    • (1959) J. Acoust. Soc. Am. , vol.31 , pp. 514-521
    • Swets, J.1
  • 47
    • 84855295049 scopus 로고
    • What is masking?
    • 10.1121/1.1909406
    • Tanner, W., Jr. (1958). " What is masking?," J. Acoust. Soc. Am. 30, 919-921. 10.1121/1.1909406
    • (1958) J. Acoust. Soc. Am. , vol.30 , pp. 919-921
    • Tanner, Jr.W.1
  • 48
    • 84953649714 scopus 로고
    • Definitions of d ′ and n as psychophysical measures
    • 10.1121/1.1909408
    • Tanner, W., Jr., and Birdsall, T. (1958). " Definitions of d ′ and n as psychophysical measures.," J. Acoust. Soc. Am. 30, 922-928. 10.1121/1.1909408
    • (1958) J. Acoust. Soc. Am. , vol.30 , pp. 922-928
    • Tanner, Jr.W.1    Birdsall, T.2
  • 49
    • 0002962766 scopus 로고
    • Issues in infant psychoacoustics
    • edited by L. Werner and E. Rubel (American Psychological Association, Washington, DC)
    • Viemeister, N. F., and Schlauch, R. S. (1992). " Issues in infant psychoacoustics.," in Developmental Psychoacoustics, edited by, L. Werner, and, E. Rubel, (American Psychological Association, Washington, DC), pp. 191-210.
    • (1992) Developmental Psychoacoustics , pp. 191-210
    • Viemeister, N.F.1    Schlauch, R.S.2
  • 50
    • 0024466818 scopus 로고
    • The response variability of striate cortical neurons in the behaving monkey
    • 10.1007/BF00275002
    • Vogels, R., Spileers, W., and Orban, G. (1989). " The response variability of striate cortical neurons in the behaving monkey.," Exp. Brain Res. 77, 432-436. 10.1007/BF00275002
    • (1989) Exp. Brain Res. , vol.77 , pp. 432-436
    • Vogels, R.1    Spileers, W.2    Orban, G.3
  • 51
    • 0035525265 scopus 로고    scopus 로고
    • The psychometric function: I. fitting, sampling, and goodness of fit
    • 10.3758/BF03194544
    • Wichmann, F., and Hill, N. (2001). " The psychometric function: I. fitting, sampling, and goodness of fit.," Atten. Percept. Psychophys. 63, 1293-1313. 10.3758/BF03194544
    • (2001) Atten. Percept. Psychophys. , vol.63 , pp. 1293-1313
    • Wichmann, F.1    Hill, N.2
  • 53
    • 0017276221 scopus 로고
    • A comparison of method-of-adjustment and forced-choice procedures in frequency discrimination
    • 10.3758/BF03199389
    • Wier, C., Jesteadt, W., and Green, D. (1976). " A comparison of method-of-adjustment and forced-choice procedures in frequency discrimination.," Atten. Percept. Psychophys. 19, 75-79. 10.3758/BF03199389
    • (1976) Atten. Percept. Psychophys. , vol.19 , pp. 75-79
    • Wier, C.1    Jesteadt, W.2    Green, D.3
  • 54
    • 0002642151 scopus 로고
    • Individual differences in auditory capability among preschool children
    • edited by L. Werner and E. Rubel (American Psychological Association, Washington, DC)
    • Wightman, F., and Allen, P. (1992). " Individual differences in auditory capability among preschool children.," in Developmental Psychoacoustics, edited by, L. Werner, and, E. Rubel, (American Psychological Association, Washington, DC), pp. 113-134.
    • (1992) Developmental Psychoacoustics , pp. 113-134
    • Wightman, F.1    Allen, P.2
  • 55
    • 21244470276 scopus 로고    scopus 로고
    • Learning and generalization of five auditory discrimination tasks as assessed by threshold changes
    • edited by D. Pressnitzer, A. de Cheveigne, S. McAdams, and L. Collet (Springer Science+Business Media, New York)
    • Wright, B., and Fitzgerald, M. (2005). " Learning and generalization of five auditory discrimination tasks as assessed by threshold changes.," in Auditory Signal Processing: Physiology, Psychoacoustics, and Models, edited by, D. Pressnitzer, A. de Cheveigne, S. McAdams, and, L. Collet, (Springer Science+Business Media, New York), pp. 509-515.
    • (2005) Auditory Signal Processing: Physiology, Psychoacoustics, and Models , pp. 509-515
    • Wright, B.1    Fitzgerald, M.2
  • 56
    • 58149240037 scopus 로고    scopus 로고
    • A review of the generalization of auditory learning
    • 10.1098/rstb.2008.0262
    • Wright, B., and Zhang, Y. (2009). " A review of the generalization of auditory learning.," Philos. Trans. R. Soc. London, Ser. B 364, 301-311. 10.1098/rstb.2008.0262
    • (2009) Philos. Trans. R. Soc. London, Ser. B , vol.364 , pp. 301-311
    • Wright, B.1    Zhang, Y.2


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