Intra-amygdala infusion of the N-methyl-d-aspartate receptor antagonist AP5 impairs acquisition but not performance of discriminated approach to an appetitive CS
Abstract
The present experiments investigated the effects of blocking glutamate transmission in the amygdala on the learning and subsequent performance of a discriminated approach response to food, as well as on locomotor activity and a test of neophobia to food. In the appetitive conditioning experiment, three separate groups of rats received intra-amygdala infusions of PBS (phosphate-buffered saline) or 1.0 or 3.0 nmol of AP5, an antagonist at the NMDA glutamate receptor subtype, immediately before each conditioning session. The effects of AP5 on the performance of the discriminated approach response were tested in a fourth group of animals. AP5 dose-dependently impaired the discriminated approach response during the acquisition of the stimulus-reward association but had no effect on the performance of this response after this association was learned. These results suggest that glutamate transmission in the amygdala at the NMDA glutamate receptor subtype is important in the learning process. In separate experiments, intra-amygdala AP5 increased locomotor activity and attenuated the neophobia to food in a novel environment by increasing approaches to the food. Together, these findings parallel the effects of lesions to the basolateral amygdala. In addition, the specific effects on learning are consistent with the hypothesis that NMDA-receptor-mediated LTP underlies specific forms of learning within the amygdala.
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Plasticity in the LA is required for several forms of appetitively motivated learning.
“In addition to being essential for aversively motivated learning, plasticity in the LA is also required for several forms of appetitively motivated learning (43–45) and a number of studies have found that separate populations of amygdala neurons mediate aversive and appetitive processing (46–48).”
From Optical activation of lateral amygdala pyramidal cells instructs associative fear learning (2010) · cites this paper as [43]
Cites
Statistical principles in experimental design.
Winer, B. J. (1962) · McGraw-Hill Book Company · doi:10.1037/11774-000 · Cited by 27,137 · see citing works
A synaptic model of memory: long-term potentiation in the hippocampus
Bliss, T. V. P., & Collingridge, G. L. (1993) · Nature · doi:10.1038/361031a0 · Cited by 11,566 · see citing works
Statistical Principles in Experimental Design
Myers, J. L., & Winer, B. J. (1964) · The American Journal of Psychology · doi:10.2307/1419292 · Cited by 8,111 · see citing works
The Psychology of Learning and Motivation
(2021) · The Psychology of learning and motivation/The psychology of learning and motivation · doi:10.1016/s0079-7421(21)x0002-3 · Cited by 5,081 · see citing works
Morris, R. G. M., Anderson, E., Lynch, G. S., & Baudry, M. (1986) · Nature · doi:10.1038/319774a0 · Cited by 3,640 · see citing works
Differential contribution of amygdala and hippocampus to cued and contextual fear conditioning.
Phillips, R. G., & LeDoux, J. E. (1992) · Behavioral Neuroscience · doi:10.1037/0735-7044.106.2.274 · Cited by 3,292 · see citing works
Differential contribution of amygdala and hippocampus to cued and contextual fear conditioning.
Phillips, R. G., & LeDoux, J. E. (1992) · Behavioral Neuroscience · doi:10.1037//0735-7044.106.2.274 · Cited by 3,262 · see citing works
Preliminary analysis of functions of the temporal lobes in monkeys
KLÜVER, H. (1939) · Archives of Neurology And Psychiatry · doi:10.1001/archneurpsyc.1939.02270240017001 · Cited by 1,696 · see citing works
Behavioral changes associated with ablation of the amygdaloid complex in monkeys.
Weiskrantz, L. (1956) · Journal of Comparative and Physiological Psychology · doi:10.1037/h0088009 · Cited by 837 · see citing works
Miserendino, M. J. D., Sananes, C. B., Melia, K. R., & Davis, M. (1990) · Nature · doi:10.1038/345716a0 · Cited by 824 · see citing works
Involvement of the amygdala in stimulus-reward associations: interaction with the ventral striatum
Cador, M., Robbins, T. W., & Everitt, B. J. (1989) · Neuroscience · doi:10.1016/0306-4522(89)90354-0 · Cited by 652 · see citing works
Self-citationCortical and subcortical afferents to the amygdala of the rhesus monkey (Macaca mulatta)
Aggleton, J. P., Burton, M. J., & Passingham, R. E. (1980) · Brain Research · doi:10.1016/0006-8993(80)90279-6 · Cited by 610 · see citing works
Selden, N. R. W., Everitt, B. J., Jarrard, L. E., & Robbins, T. W. (1991) · Neuroscience · doi:10.1016/0306-4522(91)90379-3 · Cited by 579 · see citing works
Self-citationEveritt, B. J., Morris, K. A., O'Brien, A., & Robbins, T. W. (1991) · Neuroscience · doi:10.1016/0306-4522(91)90145-e · Cited by 507 · see citing works
Self-citationIzquierdo, I., Cunha, C. D., Rosat, R. M., Jerusalinsky, D. A., Ferreira, M. B. C., & Medina, J. H. (1992) · Behavioral and Neural Biology · doi:10.1016/0163-1047(92)90847-w · Cited by 395 · see citing works
Gallagher, M., Graham, P., & Holland, P. (1990) · Journal of Neuroscience · doi:10.1523/jneurosci.10-06-01906.1990 · Cited by 352 · see citing works
Clugnet, M.-C., & LeDoux, J. (1990) · Journal of Neuroscience · doi:10.1523/jneurosci.10-08-02818.1990 · Cited by 316 · see citing works
Burns, L. H., Robbins, T. W., & Everitt, B. J. (1993) · Behavioural Brain Research · doi:10.1016/0166-4328(93)90113-5 · Cited by 289 · see citing works
Self-citationDunn, L., & Everitt, B. J. (1988) · Behavioral Neuroscience · doi:10.1037//0735-7044.102.1.3 · Cited by 270 · see citing works
Self-citationCampeau, S., Miserendino, M. J. D., & Davis, M. (1992) · Behavioral Neuroscience · doi:10.1037//0735-7044.106.3.569 · Cited by 255 · see citing works
Dunn, L. T., & Everitt, B. J. (1988) · Behavioral Neuroscience · doi:10.1037/0735-7044.102.1.3 · Cited by 251 · see citing works
Self-citationCampeau, S., Miserendino, M. J. D., & Davis, M. (1992) · Behavioral Neuroscience · doi:10.1037/0735-7044.106.3.569 · Cited by 221 · see citing works
THE AMYGDALA: SENSORY GATEWAY TO THE EMOTIONS
Aggleton, J. P., & Mishkin, M. M. (1986) · Elsevier eBooks · doi:10.1016/b978-0-12-558703-7.50018-8 · Cited by 202 · see citing works
Memory Formation: Evidence for a Specific Neurochemical System in the Amygdala
Gallagher, M., Kapp, B. S., Musty, R. E., & Driscoll, P. A. (1977) · Science · doi:10.1126/science.20664 · Cited by 196 · see citing works
Amygdalectomy and disconnection in visual learning for auditory secondary reinforcement by monkeys.
Gaffan, D., & Harrison, S. (1987) · PubMed · Cited by 190 · see citing works
Spiegler, B. J., & Mishkin, M. (1981) · Behavioural Brain Research · doi:10.1016/0166-4328(81)90002-4 · Cited by 189 · see citing works
Kim, M., Campeau, S., Falls, W. A., & Davis, M. (1993) · Behavioral and Neural Biology · doi:10.1016/0163-1047(93)91075-x · Cited by 164 · see citing works
Jerusalinsky, D. A., Ferreira, M. B. C., Walz, R., da Silva, R. C., Bianchin, M. M., Ruschel, A. C., Zanatta, M. S., Medina, J. H., & Izquierdo, I. (1992) · Behavioral and Neural Biology · doi:10.1016/0163-1047(92)90982-a · Cited by 162 · see citing works
Fear-potentiated startle using an auditory conditioned stimulus: Effect of lesions of the amygdala
Hitchcock, J. M., & Davis, M. (1987) · Physiology & Behavior · doi:10.1016/0031-9384(87)90242-3 · Cited by 158 · see citing works
Kim, M., & McGaugh, J. L. (1992) · Brain Research · doi:10.1016/0006-8993(92)91188-k · Cited by 143 · see citing works
Altered food preferences after lesions in the basolateral region of the amygdala in the rat.
Rolls, E. T., & Rolls, B. J. (1973) · Journal of Comparative and Physiological Psychology · doi:10.1037/h0034414 · Cited by 141 · see citing works
Davis, M. E., Hitchcock, J. M., & Rosen, J. B. (1988) · The Psychology of learning and motivation/The psychology of learning and motivation · doi:10.1016/s0079-7421(08)60031-6 · Cited by 139 · see citing works
Chapman, P. F., & Bellavance, L. L. (1992) · Synapse · doi:10.1002/syn.890110406 · Cited by 117 · see citing works
NMDA receptors mediate the behavioral effects of amphetamine infused into the nucleus accumbens
Kelley, A. E., & Throne, L. C. (1992) · Brain Research Bulletin · doi:10.1016/0361-9230(92)90034-u · Cited by 113 · see citing works
Izquierdo, I., Bianchin, M. M., Silva, M. B. E., Zanatta, M. S., Walz, R., Ruschel, A. C., da Silva, R. C., Paczko, N., & Medina, J. H. (1993) · Behavioral and Neural Biology · doi:10.1016/0163-1047(93)91061-q · Cited by 67 · see citing works
Bianchin, M. M., Walz, R., Ruschel, A. C., Zanatta, M. S., da Silva, R. C., Silva, M. B. E., Paczko, N., Medina, J. H., & Izquierdo, I. (1993) · Behavioral and Neural Biology · doi:10.1016/0163-1047(93)90782-d · Cited by 62 · see citing works
Yim, C. Y., & Mogenson, G. J. (1989) · Brain Research · doi:10.1016/0006-8993(89)91408-x · Cited by 57 · see citing works
Cole, B. J., Robbins, T. W., & Everitt, B. J. (1988) · Brain Research Reviews · doi:10.1016/0165-0173(88)90011-2 · Cited by 38 · see citing works
Self-citationGean, P., Chang, F., & Hung, C. R. (1993) · Journal of Neuroscience Research · doi:10.1002/jnr.490340606 · Cited by 12 · see citing works
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Sorted by citations
Synaptic Plasticity and Memory: An Evaluation of the Hypothesis
Martin, S. J., Grimwood, P. D., & Morris, R. G. M. (2000) · Annual Review of Neuroscience · doi:10.1146/annurev.neuro.23.1.649 · Cited by 2,794 · see citing works
Neurobehavioural mechanisms of reward and motivation
Robbins, T. W., & Everitt, B. J. (1996) · Current Opinion in Neurobiology · doi:10.1016/s0959-4388(96)80077-8 · Cited by 1,187 · see citing works
Self-citationGlutamate receptor function in learning and memory
Riedel, G. (2003) · Behavioural Brain Research · doi:10.1016/s0166-4328(02)00272-3 · Cited by 964 · see citing works
Reconsolidation and Extinction of Conditioned Fear: Inhibition and Potentiation
Lee, J. L. C., Milton, A. L., & Everitt, B. J. (2006) · The Journal of Neuroscience · doi:10.1523/jneurosci.2466-06.2006 · Cited by 479 · see citing works
Self-citationPrécis of <i>The brain and emotion</i>
Rolls, E. T. (2000) · Behavioral and Brain Sciences · doi:10.1017/s0140525x00002429 · Cited by 397 · see citing works
Horger, B. A., Iyasere, C. A., Berhow, M. T., Messer, C. J., Nestler, E. J., & Taylor, J. R. (1999) · Journal of Neuroscience · doi:10.1523/jneurosci.19-10-04110.1999 · Cited by 375 · see citing works
Maren, S., Aharonov, G., Stote, D. L., & Fanselow, M. S. (1996) · Behavioral Neuroscience · doi:10.1037//0735-7044.110.6.1365 · Cited by 372 · see citing works
Maren, S., Aharonov, G., Stote, D. L., & Fanselow, M. (1996) · Behavioral Neuroscience · doi:10.1037/0735-7044.110.6.1365 · Cited by 260 · see citing works
Long-term potentiation: What's learning got to do with it?
Shors, T. J., & Matzel, L. D. (1997) · Behavioral and Brain Sciences · doi:10.1017/s0140525x97001593 · Cited by 314 · see citing works
Optical activation of lateral amygdala pyramidal cells instructs associative fear learning
Johansen, J. P., Hamanaka, H., Monfils, M. H., Behnia, R., Deisseroth, K., Blair, H. T., & LeDoux, J. E. (2010) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1002418107 · Cited by 308 · see citing works
Second-order fear conditioning prevented by blocking NMDA receptors in amygdala
Gewirtz, J. C., & Davis, M. (1997) · Nature · doi:10.1038/41325 · Cited by 250 · see citing works
Rapid strengthening of thalamo-amygdala synapses mediates cue–reward learning
Tye, K. M., Stuber, G. D., de Ridder, B., Bonci, A., & Janak, P. H. (2008) · Nature · doi:10.1038/nature06963 · Cited by 216 · see citing works
See, R. E., Kruzich, P. J., & Grimm, J. W. (2001) · Psychopharmacology · doi:10.1007/s002130000636 · Cited by 222 · see citing works
Burns, L. H., Annett, L. E., Kelly, A. E., Everitt, B. J., & Robbins, T. W. (1996) · Behavioral Neuroscience · doi:10.1037//0735-7044.110.1.60 · Cited by 196 · see citing works
Self-citationBehavioural pharmacology: 40+ years of progress, with a focus on glutamate receptors and cognition
Robbins, T., & Murphy, E. R. (2006) · TIPS - Trends in Pharmacological Sciences · doi:10.1016/j.tips.2006.01.009 · Cited by 198 · see citing works
Self-citationÁlvarez-Crespo, M., Skibicka, K. P., Farkas, I., Molnár, C. S., Egecioglu, E., Hrabovszky, E., Liposits, Z., & Dickson, S. L. (2012) · PLoS ONE · doi:10.1371/journal.pone.0046321 · Cited by 166 · see citing works
Gewirtz, J. C., & Davis, M. E. (2000) · Learning & Memory · doi:10.1101/lm.35200 · Cited by 168 · see citing works
Knapska, E., Radwańska, K., Werka, T., & Kaczmarek, L. (2007) · Physiological Reviews · doi:10.1152/physrev.00037.2006 · Cited by 152 · see citing works
Taylor, J. R., & Horger, B. A. (1999) · Psychopharmacology · doi:10.1007/s002130050859 · Cited by 137 · see citing works
Baldwin, A. E., Holahan, M. R., Sadeghian, K., & Kelley, A. E. (2000) · Behavioral Neuroscience · doi:10.1037//0735-7044.114.1.84 · Cited by 120 · see citing works
Bock, J., & Braun, K. (1999) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.96.5.2485 · Cited by 113 · see citing works
Poremba, A., & Gabriel, M. (1997) · Journal of Neuroscience · doi:10.1523/jneurosci.17-13-05237.1997 · Cited by 92 · see citing works
Feltenstein, M. W., & See, R. E. (2007) · Neurobiology of Learning and Memory · doi:10.1016/j.nlm.2007.05.006 · Cited by 83 · see citing works
See, R. E., McLaughlin, J., & Fuchs, R. A. (2003) · Neuroscience · doi:10.1016/s0306-4522(02)00665-6 · Cited by 81 · see citing works
Metabotropic glutamate receptors are involved in amygdaloid plasticity
Fendt, M., & Schmid, S. (2002) · European Journal of Neuroscience · doi:10.1046/j.1460-9568.2002.01988.x · Cited by 80 · see citing works
Zellner, M. R., & Ranaldi, R. (2009) · Neuroscience & Biobehavioral Reviews · doi:10.1016/j.neubiorev.2009.11.011 · Cited by 68 · see citing works
Hitchcott, P. K., Bonardi, C., & Phillips, G. D. (1997) · Psychopharmacology · doi:10.1007/s002130050397 · Cited by 65 · see citing works
Enhanced acquisition of discriminative approach following intra-amygdala d-amphetamine
Hitchcott, P., Harmer, C., & Phillips, G. (1997) · Psychopharmacology · doi:10.1007/s002130050341 · Cited by 66 · see citing works
Halbach, O. V. B. U., & Albrecht, D. (1998) · Peptides · doi:10.1016/s0196-9781(98)00044-8 · Cited by 57 · see citing works
Dorsal hippocampal muscarinic and nicotinic receptors are involved in mediating morphine reward
Rezayof, A., ذاتعلی, ه., HAERIROHANI, A., & Zarrindast, M. (2005) · Behavioural Brain Research · doi:10.1016/j.bbr.2005.08.010 · Cited by 56 · see citing works
Thomas, K. L., & Everitt, B. J. (2001) · Journal of Neuroscience · doi:10.1523/jneurosci.21-07-02526.2001 · Cited by 68 · see citing works
Self-citationBurns, L. H., Everitt, B. J., & Robbins, T. W. (1999) · Behavioural Brain Research · doi:10.1016/s0166-4328(98)00119-3 · Cited by 57 · see citing works
Self-citationLRP1 is critical for the surface distribution and internalization of the NR2B NMDA receptor subtype
Maier, W., Bednorz, M., Meister, S., Roebroek, A., Weggen, S., Schmitt, U., & Pietrzik, C. U. (2013) · Molecular Neurodegeneration · doi:10.1186/1750-1326-8-25 · Cited by 50 · see citing works
Zarrindast, M., Fatahi, Z., Rostami, P., & Rezayof, A. (2005) · Pharmacology Biochemistry and Behavior · doi:10.1016/j.pbb.2005.02.018 · Cited by 47 · see citing works
Chen, G., & Steinmetz, J. E. (2000) · Brain Research · doi:10.1016/s0006-8993(00)03005-5 · Cited by 44 · see citing works
Hess, U., Gall, C. M., Granger, R., & Lynch, G. (1997) · Learning & Memory · doi:10.1101/lm.4.3.262 · Cited by 39 · see citing works
Jafari‐Sabet, M., Zarrindast, M., Rezayat, S. M., Rezayof, A., & DJAHANGUIRI, B. (2005) · Life Sciences · doi:10.1016/j.lfs.2005.04.040 · Cited by 36 · see citing works
The modulatory role of nicotine on cognitive and non-cognitive functions
Zarrindast, M., & Khakpai, F. (2018) · Brain Research · doi:10.1016/j.brainres.2018.12.002 · Cited by 32 · see citing works
Gewirtz, J. C., & Davis, M. (1998) · Neuropharmacology · doi:10.1016/s0028-3908(98)00036-7 · Cited by 32 · see citing works
NMDA receptors in the basolateral amygdala and gustatory neophobia
Figueroa-Guzmán, Y., & Reilly, S. (2008) · Brain Research · doi:10.1016/j.brainres.2008.02.074 · Cited by 27 · see citing works
Wiring and Volume Transmission in Rat Amygdala. Implications for Fear and Anxiety
de la Mora, M. P., Jacobsen, K. X., Crespo‐Ramírez, M., Flores‐Gracia, C., & Fuxé, K. (2008) · Neurochemical Research · doi:10.1007/s11064-008-9722-9 · Cited by 27 · see citing works
Russo, C., Russo, A., Pellitteri, R., & Stanzani, S. (2018) · Experimental Brain Research · doi:10.1007/s00221-018-5298-z · Cited by 24 · see citing works
Hart, M., Poremba, A., & Gabriel, M. (1997) · Behavioural Brain Research · doi:10.1016/s0166-4328(97)80986-2 · Cited by 24 · see citing works
Bianchin, M. M., Spanis, C. W., Roesler, R., McGaugh, J. L., & Izquierdo, I. (2000) · Brain Research · doi:10.1016/s0006-8993(99)02220-9 · Cited by 24 · see citing works
Touzani, K., Bodnar, R. J., & Sclafani, A. J. (2013) · Neurobiology of Learning and Memory · doi:10.1016/j.nlm.2013.07.016 · Cited by 20 · see citing works
Ma, J., Naumann, R. T., & Kanwal, J. S. (2010) · PLoS ONE · doi:10.1371/journal.pone.0010579 · Cited by 15 · see citing works
Machado, C. J., Emery, N. J., Mason, W. A., & Amaral, D. G. (2010) · Behavioral Neuroscience · doi:10.1037/a0021560 · Cited by 11 · see citing works
Neurobiology of neophobia and its attenuation
Osorio‐Gómez, D., Guzmán-Ramos, K. R., & Bermúdez‐Rattoni, F. (2018) · Elsevier eBooks · doi:10.1016/b978-0-08-101931-3.00006-9 · Cited by 11 · see citing works
Servonnet, A., Rompré, P.-P., & Samaha, A. (2022) · Behavioural Brain Research · doi:10.1016/j.bbr.2022.114254 · Cited by 9 · see citing works
MORPHINE-INDUCED PLACE PREFERENCE: INTERACTIONS WITH NEUROTRANSMITTER SYSTEMS
Zarindast, M. R., & Rezayof, A. (2007) · Iranian journal of pharmaceutical research · doi:10.22037/ijpr.2010.693 · Cited by 9 · see citing works
Kraft, T. T., Huang, D., Lolier, M., Warshaw, D., LaMagna, S., Natanova, E., Sclafani, A. J., & Bodnar, R. J. (2016) · Pharmacology Biochemistry and Behavior · doi:10.1016/j.pbb.2016.06.007 · Cited by 9 · see citing works
The topology of perceptive functions as a corollary of the theorem of existence in closed spaces
Bounias, M., & Bonaly, A. (1997) · Biosystems · doi:10.1016/s0303-2647(97)01706-1 · Cited by 8 · see citing works
Andrzejewski, M. E., & Ryals, C. D. (2015) · Behavioural Brain Research · doi:10.1016/j.bbr.2015.11.034 · Cited by 6 · see citing works
Stevens, L., Shapiro, M. L., & White, N. M. (1997) · Psychobiology · doi:10.3758/bf03331915 · Cited by 6 · see citing works
The Contribution of the Amygdala to Reward-Related Learning and Extinction
Chesworth, R., & Corbit, L. H. (2017) · InTech eBooks · doi:10.5772/67831 · Cited by 4 · see citing works
Blockade of NMDA receptors blocks the acquisition of cocaine conditioned approach in rats
Galaj, E., Seepersad, N., Dakmak, Z., & Ranaldi, R. (2017) · European Journal of Pharmacology · doi:10.1016/j.ejphar.2017.11.029 · Cited by 4 · see citing works
Is what you feel what you don't know?
Moore, S., & Oaksford, M. (2000) · Behavioral and Brain Sciences · doi:10.1017/s0140525x00422429 · Cited by 2 · see citing works
McLaughlin, R. J. (2011) · cIRcle (University of British Columbia) · doi:10.14288/1.0100989
Servonnet, A., Rompré, P.-P., & Samaha, A. (2021) · bioRxiv (Cold Spring Harbor Laboratory) · doi:10.1101/2021.10.20.465037
- Authors
- Burns, L. H., Everitt, B. J., & Robbins, T. W.
- Affiliations
- University of Cambridge (GB)
- Corresponding author
- Burns, Lindsay H.
- Venue
- Behavioral and Neural Biology
- Publisher
- Elsevier BV
- Published
- 1994-05
- Volume
- 61
- Issue
- 3
- Pages
- 242-250
- ISSN
- 0163-1047 (ISSN-L)
- OpenAlex
- W2056132879
- Cited by
- 61
- References
- 36
- Citations by year
- 2022: 1 · 2021: 1 · 2018: 3 · 2017: 2 · 2016: 1 · 2015: 2 · 2013: 2 · 2012: 1
- FWCI
- 2.79
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Behavioral and Neural Biology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
- Keywords
- NMDA receptor antagonists, AP5, amygdala, appetitive conditioning, food approach, discriminative stimulus, glutamatergic neurotransmission, long-term potentiation, locomotor activity, basolateral amygdala, learning acquisition
- MeSH terms
- Amygdala, Animals, Appetitive Behavior, Behavior, Animal, Conditioning, Psychological, Learning, Locomotion, Male, 2-Amino-5-phosphonovalerate, Receptors, N-Methyl-D-Aspartate, N-Methylaspartate, Rats
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