Differential effects of intra-amygdala lidocaine infusion on memory consolidation and expression of a food conditioned place preference
Abstract In the present experiments, we examined the effects of posttraining and preretention intra-amygdala infusion of the anesthetic lidocaine on memory consolidation and expression in a food conditioned place preference (CPP) task. In two separate experiments, for 4 alternating days, food depriv...
Ausführliche Beschreibung
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| Autor*in: |
Schroeder, Jason P. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2000 |
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| Schlagwörter: |
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| Anmerkung: |
© Psychonomic Society, Inc. 2000 |
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| Übergeordnetes Werk: |
Enthalten in: Physiological Psychology - Springer-Verlag, 1973, 28(2000), 4 vom: Dez., Seite 486-491 |
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| Übergeordnetes Werk: |
volume:28 ; year:2000 ; number:4 ; month:12 ; pages:486-491 |
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10.3758/BF03332006 |
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| 520 | |a Abstract In the present experiments, we examined the effects of posttraining and preretention intra-amygdala infusion of the anesthetic lidocaine on memory consolidation and expression in a food conditioned place preference (CPP) task. In two separate experiments, for 4 alternating days, food deprived adult male Long-Evans rats were given access to food or no access to food during confinement for 30 min to one of two compartments in a place preference apparatus. On Day 9, the rats were given a 20-min test session and allowed access to all compartments of the apparatus. No food was present on the test day, and the amount of time spent in each compartment of the apparatus was recorded. On the test day, rats receiving saline immediately after previous training, or immediately prior to testing, spent more time in the compartment that was previously paired with food, demonstrating a food conditioned place preference (CPP). Posttraining infusion of lidocaine (2% solution, 0.5 µl/side) into the basolateral amygdala blocked acquisition, indicating that this structure is necessary for memory consolidation processes that mediate a food CPP. In contrast, immediate pretest infusion of lidocaine into the basolateral amygdala had no effect on expression of a food CPP. Taken together, the findings suggest a modulatory role for the basolateral amygdala in memory consolidation processes that underlie reward-related learning in a food CPP task. | ||
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10.3758/BF03332006 doi (DE-627)SPR037022563 (SPR)BF03332006-e DE-627 ger DE-627 rakwb eng Schroeder, Jason P. verfasserin aut Differential effects of intra-amygdala lidocaine infusion on memory consolidation and expression of a food conditioned place preference 2000 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Psychonomic Society, Inc. 2000 Abstract In the present experiments, we examined the effects of posttraining and preretention intra-amygdala infusion of the anesthetic lidocaine on memory consolidation and expression in a food conditioned place preference (CPP) task. In two separate experiments, for 4 alternating days, food deprived adult male Long-Evans rats were given access to food or no access to food during confinement for 30 min to one of two compartments in a place preference apparatus. On Day 9, the rats were given a 20-min test session and allowed access to all compartments of the apparatus. No food was present on the test day, and the amount of time spent in each compartment of the apparatus was recorded. On the test day, rats receiving saline immediately after previous training, or immediately prior to testing, spent more time in the compartment that was previously paired with food, demonstrating a food conditioned place preference (CPP). Posttraining infusion of lidocaine (2% solution, 0.5 µl/side) into the basolateral amygdala blocked acquisition, indicating that this structure is necessary for memory consolidation processes that mediate a food CPP. In contrast, immediate pretest infusion of lidocaine into the basolateral amygdala had no effect on expression of a food CPP. Taken together, the findings suggest a modulatory role for the basolateral amygdala in memory consolidation processes that underlie reward-related learning in a food CPP task. Conditioned Place Preference (dpeaa)DE-He213 Basolateral Amygdala (dpeaa)DE-He213 Lateral Amygdala (dpeaa)DE-He213 Cocaine Conditioned Place Preference (dpeaa)DE-He213 Conditioned Place Preference Paradigm (dpeaa)DE-He213 Packard, Mark G. aut Enthalten in Physiological Psychology Springer-Verlag, 1973 28(2000), 4 vom: Dez., Seite 486-491 (DE-627)SPR037003089 nnns volume:28 year:2000 number:4 month:12 pages:486-491 https://dx.doi.org/10.3758/BF03332006 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 28 2000 4 12 486-491 |
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10.3758/BF03332006 doi (DE-627)SPR037022563 (SPR)BF03332006-e DE-627 ger DE-627 rakwb eng Schroeder, Jason P. verfasserin aut Differential effects of intra-amygdala lidocaine infusion on memory consolidation and expression of a food conditioned place preference 2000 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Psychonomic Society, Inc. 2000 Abstract In the present experiments, we examined the effects of posttraining and preretention intra-amygdala infusion of the anesthetic lidocaine on memory consolidation and expression in a food conditioned place preference (CPP) task. In two separate experiments, for 4 alternating days, food deprived adult male Long-Evans rats were given access to food or no access to food during confinement for 30 min to one of two compartments in a place preference apparatus. On Day 9, the rats were given a 20-min test session and allowed access to all compartments of the apparatus. No food was present on the test day, and the amount of time spent in each compartment of the apparatus was recorded. On the test day, rats receiving saline immediately after previous training, or immediately prior to testing, spent more time in the compartment that was previously paired with food, demonstrating a food conditioned place preference (CPP). Posttraining infusion of lidocaine (2% solution, 0.5 µl/side) into the basolateral amygdala blocked acquisition, indicating that this structure is necessary for memory consolidation processes that mediate a food CPP. In contrast, immediate pretest infusion of lidocaine into the basolateral amygdala had no effect on expression of a food CPP. Taken together, the findings suggest a modulatory role for the basolateral amygdala in memory consolidation processes that underlie reward-related learning in a food CPP task. Conditioned Place Preference (dpeaa)DE-He213 Basolateral Amygdala (dpeaa)DE-He213 Lateral Amygdala (dpeaa)DE-He213 Cocaine Conditioned Place Preference (dpeaa)DE-He213 Conditioned Place Preference Paradigm (dpeaa)DE-He213 Packard, Mark G. aut Enthalten in Physiological Psychology Springer-Verlag, 1973 28(2000), 4 vom: Dez., Seite 486-491 (DE-627)SPR037003089 nnns volume:28 year:2000 number:4 month:12 pages:486-491 https://dx.doi.org/10.3758/BF03332006 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 28 2000 4 12 486-491 |
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10.3758/BF03332006 doi (DE-627)SPR037022563 (SPR)BF03332006-e DE-627 ger DE-627 rakwb eng Schroeder, Jason P. verfasserin aut Differential effects of intra-amygdala lidocaine infusion on memory consolidation and expression of a food conditioned place preference 2000 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Psychonomic Society, Inc. 2000 Abstract In the present experiments, we examined the effects of posttraining and preretention intra-amygdala infusion of the anesthetic lidocaine on memory consolidation and expression in a food conditioned place preference (CPP) task. In two separate experiments, for 4 alternating days, food deprived adult male Long-Evans rats were given access to food or no access to food during confinement for 30 min to one of two compartments in a place preference apparatus. On Day 9, the rats were given a 20-min test session and allowed access to all compartments of the apparatus. No food was present on the test day, and the amount of time spent in each compartment of the apparatus was recorded. On the test day, rats receiving saline immediately after previous training, or immediately prior to testing, spent more time in the compartment that was previously paired with food, demonstrating a food conditioned place preference (CPP). Posttraining infusion of lidocaine (2% solution, 0.5 µl/side) into the basolateral amygdala blocked acquisition, indicating that this structure is necessary for memory consolidation processes that mediate a food CPP. In contrast, immediate pretest infusion of lidocaine into the basolateral amygdala had no effect on expression of a food CPP. Taken together, the findings suggest a modulatory role for the basolateral amygdala in memory consolidation processes that underlie reward-related learning in a food CPP task. Conditioned Place Preference (dpeaa)DE-He213 Basolateral Amygdala (dpeaa)DE-He213 Lateral Amygdala (dpeaa)DE-He213 Cocaine Conditioned Place Preference (dpeaa)DE-He213 Conditioned Place Preference Paradigm (dpeaa)DE-He213 Packard, Mark G. aut Enthalten in Physiological Psychology Springer-Verlag, 1973 28(2000), 4 vom: Dez., Seite 486-491 (DE-627)SPR037003089 nnns volume:28 year:2000 number:4 month:12 pages:486-491 https://dx.doi.org/10.3758/BF03332006 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 28 2000 4 12 486-491 |
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10.3758/BF03332006 doi (DE-627)SPR037022563 (SPR)BF03332006-e DE-627 ger DE-627 rakwb eng Schroeder, Jason P. verfasserin aut Differential effects of intra-amygdala lidocaine infusion on memory consolidation and expression of a food conditioned place preference 2000 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Psychonomic Society, Inc. 2000 Abstract In the present experiments, we examined the effects of posttraining and preretention intra-amygdala infusion of the anesthetic lidocaine on memory consolidation and expression in a food conditioned place preference (CPP) task. In two separate experiments, for 4 alternating days, food deprived adult male Long-Evans rats were given access to food or no access to food during confinement for 30 min to one of two compartments in a place preference apparatus. On Day 9, the rats were given a 20-min test session and allowed access to all compartments of the apparatus. No food was present on the test day, and the amount of time spent in each compartment of the apparatus was recorded. On the test day, rats receiving saline immediately after previous training, or immediately prior to testing, spent more time in the compartment that was previously paired with food, demonstrating a food conditioned place preference (CPP). Posttraining infusion of lidocaine (2% solution, 0.5 µl/side) into the basolateral amygdala blocked acquisition, indicating that this structure is necessary for memory consolidation processes that mediate a food CPP. In contrast, immediate pretest infusion of lidocaine into the basolateral amygdala had no effect on expression of a food CPP. Taken together, the findings suggest a modulatory role for the basolateral amygdala in memory consolidation processes that underlie reward-related learning in a food CPP task. Conditioned Place Preference (dpeaa)DE-He213 Basolateral Amygdala (dpeaa)DE-He213 Lateral Amygdala (dpeaa)DE-He213 Cocaine Conditioned Place Preference (dpeaa)DE-He213 Conditioned Place Preference Paradigm (dpeaa)DE-He213 Packard, Mark G. aut Enthalten in Physiological Psychology Springer-Verlag, 1973 28(2000), 4 vom: Dez., Seite 486-491 (DE-627)SPR037003089 nnns volume:28 year:2000 number:4 month:12 pages:486-491 https://dx.doi.org/10.3758/BF03332006 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 28 2000 4 12 486-491 |
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10.3758/BF03332006 doi (DE-627)SPR037022563 (SPR)BF03332006-e DE-627 ger DE-627 rakwb eng Schroeder, Jason P. verfasserin aut Differential effects of intra-amygdala lidocaine infusion on memory consolidation and expression of a food conditioned place preference 2000 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Psychonomic Society, Inc. 2000 Abstract In the present experiments, we examined the effects of posttraining and preretention intra-amygdala infusion of the anesthetic lidocaine on memory consolidation and expression in a food conditioned place preference (CPP) task. In two separate experiments, for 4 alternating days, food deprived adult male Long-Evans rats were given access to food or no access to food during confinement for 30 min to one of two compartments in a place preference apparatus. On Day 9, the rats were given a 20-min test session and allowed access to all compartments of the apparatus. No food was present on the test day, and the amount of time spent in each compartment of the apparatus was recorded. On the test day, rats receiving saline immediately after previous training, or immediately prior to testing, spent more time in the compartment that was previously paired with food, demonstrating a food conditioned place preference (CPP). Posttraining infusion of lidocaine (2% solution, 0.5 µl/side) into the basolateral amygdala blocked acquisition, indicating that this structure is necessary for memory consolidation processes that mediate a food CPP. In contrast, immediate pretest infusion of lidocaine into the basolateral amygdala had no effect on expression of a food CPP. Taken together, the findings suggest a modulatory role for the basolateral amygdala in memory consolidation processes that underlie reward-related learning in a food CPP task. Conditioned Place Preference (dpeaa)DE-He213 Basolateral Amygdala (dpeaa)DE-He213 Lateral Amygdala (dpeaa)DE-He213 Cocaine Conditioned Place Preference (dpeaa)DE-He213 Conditioned Place Preference Paradigm (dpeaa)DE-He213 Packard, Mark G. aut Enthalten in Physiological Psychology Springer-Verlag, 1973 28(2000), 4 vom: Dez., Seite 486-491 (DE-627)SPR037003089 nnns volume:28 year:2000 number:4 month:12 pages:486-491 https://dx.doi.org/10.3758/BF03332006 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 28 2000 4 12 486-491 |
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Differential effects of intra-amygdala lidocaine infusion on memory consolidation and expression of a food conditioned place preference |
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Abstract In the present experiments, we examined the effects of posttraining and preretention intra-amygdala infusion of the anesthetic lidocaine on memory consolidation and expression in a food conditioned place preference (CPP) task. In two separate experiments, for 4 alternating days, food deprived adult male Long-Evans rats were given access to food or no access to food during confinement for 30 min to one of two compartments in a place preference apparatus. On Day 9, the rats were given a 20-min test session and allowed access to all compartments of the apparatus. No food was present on the test day, and the amount of time spent in each compartment of the apparatus was recorded. On the test day, rats receiving saline immediately after previous training, or immediately prior to testing, spent more time in the compartment that was previously paired with food, demonstrating a food conditioned place preference (CPP). Posttraining infusion of lidocaine (2% solution, 0.5 µl/side) into the basolateral amygdala blocked acquisition, indicating that this structure is necessary for memory consolidation processes that mediate a food CPP. In contrast, immediate pretest infusion of lidocaine into the basolateral amygdala had no effect on expression of a food CPP. Taken together, the findings suggest a modulatory role for the basolateral amygdala in memory consolidation processes that underlie reward-related learning in a food CPP task. © Psychonomic Society, Inc. 2000 |
| abstractGer |
Abstract In the present experiments, we examined the effects of posttraining and preretention intra-amygdala infusion of the anesthetic lidocaine on memory consolidation and expression in a food conditioned place preference (CPP) task. In two separate experiments, for 4 alternating days, food deprived adult male Long-Evans rats were given access to food or no access to food during confinement for 30 min to one of two compartments in a place preference apparatus. On Day 9, the rats were given a 20-min test session and allowed access to all compartments of the apparatus. No food was present on the test day, and the amount of time spent in each compartment of the apparatus was recorded. On the test day, rats receiving saline immediately after previous training, or immediately prior to testing, spent more time in the compartment that was previously paired with food, demonstrating a food conditioned place preference (CPP). Posttraining infusion of lidocaine (2% solution, 0.5 µl/side) into the basolateral amygdala blocked acquisition, indicating that this structure is necessary for memory consolidation processes that mediate a food CPP. In contrast, immediate pretest infusion of lidocaine into the basolateral amygdala had no effect on expression of a food CPP. Taken together, the findings suggest a modulatory role for the basolateral amygdala in memory consolidation processes that underlie reward-related learning in a food CPP task. © Psychonomic Society, Inc. 2000 |
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Abstract In the present experiments, we examined the effects of posttraining and preretention intra-amygdala infusion of the anesthetic lidocaine on memory consolidation and expression in a food conditioned place preference (CPP) task. In two separate experiments, for 4 alternating days, food deprived adult male Long-Evans rats were given access to food or no access to food during confinement for 30 min to one of two compartments in a place preference apparatus. On Day 9, the rats were given a 20-min test session and allowed access to all compartments of the apparatus. No food was present on the test day, and the amount of time spent in each compartment of the apparatus was recorded. On the test day, rats receiving saline immediately after previous training, or immediately prior to testing, spent more time in the compartment that was previously paired with food, demonstrating a food conditioned place preference (CPP). Posttraining infusion of lidocaine (2% solution, 0.5 µl/side) into the basolateral amygdala blocked acquisition, indicating that this structure is necessary for memory consolidation processes that mediate a food CPP. In contrast, immediate pretest infusion of lidocaine into the basolateral amygdala had no effect on expression of a food CPP. Taken together, the findings suggest a modulatory role for the basolateral amygdala in memory consolidation processes that underlie reward-related learning in a food CPP task. © Psychonomic Society, Inc. 2000 |
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Differential effects of intra-amygdala lidocaine infusion on memory consolidation and expression of a food conditioned place preference |
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