Acquisition and persistence of intermittent access-induced escalated sucrose intake in male rats

Ad lib fed male rats with 23 h every third day access (E3DA) to 4% sucrose come to double the sucrose intake of rats with everyday access (EDA). These differences are maintained if all rats are then put on an alternate day schedule. In two experiments, we explored how initial patterns of sucrose ava...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Senthinathan, Gehan [verfasserIn] Eikelboom, Roelof [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Schlagwörter:	Intermittent food access Sucrose solution Consumption Male rats Feeding

Übergeordnetes Werk:	Enthalten in: Physiology & behavior - Amsterdam [u.a.] : Elsevier Science, 1976, 260
Übergeordnetes Werk:	volume:260

DOI / URN:	10.1016/j.physbeh.2022.114064

Katalog-ID:	ELV066360897

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245	1	0	\|a Acquisition and persistence of intermittent access-induced escalated sucrose intake in male rats
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520			\|a Ad lib fed male rats with 23 h every third day access (E3DA) to 4% sucrose come to double the sucrose intake of rats with everyday access (EDA). These differences are maintained if all rats are then put on an alternate day schedule. In two experiments, we explored how initial patterns of sucrose availability influenced consumption when access conditions changed. In Phase I of a 2 by 2 experiment 1, rats given E3DA to 4% sucrose approximately doubled the intake of rats given EDA. In Phase II, half the EDA rats were shifted to E3DA and they rapidly increased their sucrose intake, but their sucrose consumption remained below that of the Phase I E3DA rats. Rats shifted from E3DA to EDA only gradually reduced their intake over the 40 days. In Phase III, all rats were shifted to alternate day access and the effects of prior phases were still evident. In experiment 2, rats given 40 days of EDA to 4% sucrose and then shifted to E3DA showed almost identical sucrose intake increases as age-matched rats with no previous sucrose experience. The period of EDA to sucrose did not influence the magnitude of the E3DA effect. In a third experiment, we found that older rats showed an intermittency effect similar to what we have found with younger rats. Limited or unpredictable availability of a food source, even after a period of abundance, can produce a profound positive change in an animal's evaluation of the item.
650		4	\|a Intermittent food access
650		4	\|a Sucrose solution
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650		4	\|a Feeding
700	1		\|a Eikelboom, Roelof \|e verfasserin \|0 (orcid)0000-0003-4490-707X \|4 aut
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Indexfelder

author_variant	g s gs r e re
matchkey_str	article:1873507X:2022----::custoadessecoitritnacsidcdsaaes
hierarchy_sort_str	2022
bklnumber	77.50
publishDate	2022
allfields	10.1016/j.physbeh.2022.114064 doi (DE-627)ELV066360897 (ELSEVIER)S0031-9384(22)00368-7 DE-627 ger DE-627 rda eng 570 VZ BIODIV DE-30 fid 77.50 bkl Senthinathan, Gehan verfasserin aut Acquisition and persistence of intermittent access-induced escalated sucrose intake in male rats 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Ad lib fed male rats with 23 h every third day access (E3DA) to 4% sucrose come to double the sucrose intake of rats with everyday access (EDA). These differences are maintained if all rats are then put on an alternate day schedule. In two experiments, we explored how initial patterns of sucrose availability influenced consumption when access conditions changed. In Phase I of a 2 by 2 experiment 1, rats given E3DA to 4% sucrose approximately doubled the intake of rats given EDA. In Phase II, half the EDA rats were shifted to E3DA and they rapidly increased their sucrose intake, but their sucrose consumption remained below that of the Phase I E3DA rats. Rats shifted from E3DA to EDA only gradually reduced their intake over the 40 days. In Phase III, all rats were shifted to alternate day access and the effects of prior phases were still evident. In experiment 2, rats given 40 days of EDA to 4% sucrose and then shifted to E3DA showed almost identical sucrose intake increases as age-matched rats with no previous sucrose experience. The period of EDA to sucrose did not influence the magnitude of the E3DA effect. In a third experiment, we found that older rats showed an intermittency effect similar to what we have found with younger rats. Limited or unpredictable availability of a food source, even after a period of abundance, can produce a profound positive change in an animal's evaluation of the item. Intermittent food access Sucrose solution Consumption Male rats Feeding Eikelboom, Roelof verfasserin (orcid)0000-0003-4490-707X aut Enthalten in Physiology & behavior Amsterdam [u.a.] : Elsevier Science, 1976 260 Online-Ressource (DE-627)320472825 (DE-600)2008755-X (DE-576)096606096 1873-507X nnns volume:260 GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 77.50 Psychophysiologie VZ AR 260
spelling	10.1016/j.physbeh.2022.114064 doi (DE-627)ELV066360897 (ELSEVIER)S0031-9384(22)00368-7 DE-627 ger DE-627 rda eng 570 VZ BIODIV DE-30 fid 77.50 bkl Senthinathan, Gehan verfasserin aut Acquisition and persistence of intermittent access-induced escalated sucrose intake in male rats 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Ad lib fed male rats with 23 h every third day access (E3DA) to 4% sucrose come to double the sucrose intake of rats with everyday access (EDA). These differences are maintained if all rats are then put on an alternate day schedule. In two experiments, we explored how initial patterns of sucrose availability influenced consumption when access conditions changed. In Phase I of a 2 by 2 experiment 1, rats given E3DA to 4% sucrose approximately doubled the intake of rats given EDA. In Phase II, half the EDA rats were shifted to E3DA and they rapidly increased their sucrose intake, but their sucrose consumption remained below that of the Phase I E3DA rats. Rats shifted from E3DA to EDA only gradually reduced their intake over the 40 days. In Phase III, all rats were shifted to alternate day access and the effects of prior phases were still evident. In experiment 2, rats given 40 days of EDA to 4% sucrose and then shifted to E3DA showed almost identical sucrose intake increases as age-matched rats with no previous sucrose experience. The period of EDA to sucrose did not influence the magnitude of the E3DA effect. In a third experiment, we found that older rats showed an intermittency effect similar to what we have found with younger rats. Limited or unpredictable availability of a food source, even after a period of abundance, can produce a profound positive change in an animal's evaluation of the item. Intermittent food access Sucrose solution Consumption Male rats Feeding Eikelboom, Roelof verfasserin (orcid)0000-0003-4490-707X aut Enthalten in Physiology & behavior Amsterdam [u.a.] : Elsevier Science, 1976 260 Online-Ressource (DE-627)320472825 (DE-600)2008755-X (DE-576)096606096 1873-507X nnns volume:260 GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 77.50 Psychophysiologie VZ AR 260
allfields_unstemmed	10.1016/j.physbeh.2022.114064 doi (DE-627)ELV066360897 (ELSEVIER)S0031-9384(22)00368-7 DE-627 ger DE-627 rda eng 570 VZ BIODIV DE-30 fid 77.50 bkl Senthinathan, Gehan verfasserin aut Acquisition and persistence of intermittent access-induced escalated sucrose intake in male rats 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Ad lib fed male rats with 23 h every third day access (E3DA) to 4% sucrose come to double the sucrose intake of rats with everyday access (EDA). These differences are maintained if all rats are then put on an alternate day schedule. In two experiments, we explored how initial patterns of sucrose availability influenced consumption when access conditions changed. In Phase I of a 2 by 2 experiment 1, rats given E3DA to 4% sucrose approximately doubled the intake of rats given EDA. In Phase II, half the EDA rats were shifted to E3DA and they rapidly increased their sucrose intake, but their sucrose consumption remained below that of the Phase I E3DA rats. Rats shifted from E3DA to EDA only gradually reduced their intake over the 40 days. In Phase III, all rats were shifted to alternate day access and the effects of prior phases were still evident. In experiment 2, rats given 40 days of EDA to 4% sucrose and then shifted to E3DA showed almost identical sucrose intake increases as age-matched rats with no previous sucrose experience. The period of EDA to sucrose did not influence the magnitude of the E3DA effect. In a third experiment, we found that older rats showed an intermittency effect similar to what we have found with younger rats. Limited or unpredictable availability of a food source, even after a period of abundance, can produce a profound positive change in an animal's evaluation of the item. Intermittent food access Sucrose solution Consumption Male rats Feeding Eikelboom, Roelof verfasserin (orcid)0000-0003-4490-707X aut Enthalten in Physiology & behavior Amsterdam [u.a.] : Elsevier Science, 1976 260 Online-Ressource (DE-627)320472825 (DE-600)2008755-X (DE-576)096606096 1873-507X nnns volume:260 GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 77.50 Psychophysiologie VZ AR 260
allfieldsGer	10.1016/j.physbeh.2022.114064 doi (DE-627)ELV066360897 (ELSEVIER)S0031-9384(22)00368-7 DE-627 ger DE-627 rda eng 570 VZ BIODIV DE-30 fid 77.50 bkl Senthinathan, Gehan verfasserin aut Acquisition and persistence of intermittent access-induced escalated sucrose intake in male rats 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Ad lib fed male rats with 23 h every third day access (E3DA) to 4% sucrose come to double the sucrose intake of rats with everyday access (EDA). These differences are maintained if all rats are then put on an alternate day schedule. In two experiments, we explored how initial patterns of sucrose availability influenced consumption when access conditions changed. In Phase I of a 2 by 2 experiment 1, rats given E3DA to 4% sucrose approximately doubled the intake of rats given EDA. In Phase II, half the EDA rats were shifted to E3DA and they rapidly increased their sucrose intake, but their sucrose consumption remained below that of the Phase I E3DA rats. Rats shifted from E3DA to EDA only gradually reduced their intake over the 40 days. In Phase III, all rats were shifted to alternate day access and the effects of prior phases were still evident. In experiment 2, rats given 40 days of EDA to 4% sucrose and then shifted to E3DA showed almost identical sucrose intake increases as age-matched rats with no previous sucrose experience. The period of EDA to sucrose did not influence the magnitude of the E3DA effect. In a third experiment, we found that older rats showed an intermittency effect similar to what we have found with younger rats. Limited or unpredictable availability of a food source, even after a period of abundance, can produce a profound positive change in an animal's evaluation of the item. Intermittent food access Sucrose solution Consumption Male rats Feeding Eikelboom, Roelof verfasserin (orcid)0000-0003-4490-707X aut Enthalten in Physiology & behavior Amsterdam [u.a.] : Elsevier Science, 1976 260 Online-Ressource (DE-627)320472825 (DE-600)2008755-X (DE-576)096606096 1873-507X nnns volume:260 GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 77.50 Psychophysiologie VZ AR 260
allfieldsSound	10.1016/j.physbeh.2022.114064 doi (DE-627)ELV066360897 (ELSEVIER)S0031-9384(22)00368-7 DE-627 ger DE-627 rda eng 570 VZ BIODIV DE-30 fid 77.50 bkl Senthinathan, Gehan verfasserin aut Acquisition and persistence of intermittent access-induced escalated sucrose intake in male rats 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Ad lib fed male rats with 23 h every third day access (E3DA) to 4% sucrose come to double the sucrose intake of rats with everyday access (EDA). These differences are maintained if all rats are then put on an alternate day schedule. In two experiments, we explored how initial patterns of sucrose availability influenced consumption when access conditions changed. In Phase I of a 2 by 2 experiment 1, rats given E3DA to 4% sucrose approximately doubled the intake of rats given EDA. In Phase II, half the EDA rats were shifted to E3DA and they rapidly increased their sucrose intake, but their sucrose consumption remained below that of the Phase I E3DA rats. Rats shifted from E3DA to EDA only gradually reduced their intake over the 40 days. In Phase III, all rats were shifted to alternate day access and the effects of prior phases were still evident. In experiment 2, rats given 40 days of EDA to 4% sucrose and then shifted to E3DA showed almost identical sucrose intake increases as age-matched rats with no previous sucrose experience. The period of EDA to sucrose did not influence the magnitude of the E3DA effect. In a third experiment, we found that older rats showed an intermittency effect similar to what we have found with younger rats. Limited or unpredictable availability of a food source, even after a period of abundance, can produce a profound positive change in an animal's evaluation of the item. Intermittent food access Sucrose solution Consumption Male rats Feeding Eikelboom, Roelof verfasserin (orcid)0000-0003-4490-707X aut Enthalten in Physiology & behavior Amsterdam [u.a.] : Elsevier Science, 1976 260 Online-Ressource (DE-627)320472825 (DE-600)2008755-X (DE-576)096606096 1873-507X nnns volume:260 GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 77.50 Psychophysiologie VZ AR 260
language	English
source	Enthalten in Physiology & behavior 260 volume:260
sourceStr	Enthalten in Physiology & behavior 260 volume:260
format_phy_str_mv	Article
bklname	Psychophysiologie
institution	findex.gbv.de
topic_facet	Intermittent food access Sucrose solution Consumption Male rats Feeding
dewey-raw	570
isfreeaccess_bool	false
container_title	Physiology & behavior
authorswithroles_txt_mv	Senthinathan, Gehan @@aut@@ Eikelboom, Roelof @@aut@@
publishDateDaySort_date	2022-01-01T00:00:00Z
hierarchy_top_id	320472825
dewey-sort	3570
id	ELV066360897
language_de	englisch
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author	Senthinathan, Gehan
spellingShingle	Senthinathan, Gehan ddc 570 fid BIODIV bkl 77.50 misc Intermittent food access misc Sucrose solution misc Consumption misc Male rats misc Feeding Acquisition and persistence of intermittent access-induced escalated sucrose intake in male rats
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topic_title	570 VZ BIODIV DE-30 fid 77.50 bkl Acquisition and persistence of intermittent access-induced escalated sucrose intake in male rats Intermittent food access Sucrose solution Consumption Male rats Feeding
topic	ddc 570 fid BIODIV bkl 77.50 misc Intermittent food access misc Sucrose solution misc Consumption misc Male rats misc Feeding
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title	Acquisition and persistence of intermittent access-induced escalated sucrose intake in male rats
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title_full	Acquisition and persistence of intermittent access-induced escalated sucrose intake in male rats
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title_sort	acquisition and persistence of intermittent access-induced escalated sucrose intake in male rats
title_auth	Acquisition and persistence of intermittent access-induced escalated sucrose intake in male rats
abstract	Ad lib fed male rats with 23 h every third day access (E3DA) to 4% sucrose come to double the sucrose intake of rats with everyday access (EDA). These differences are maintained if all rats are then put on an alternate day schedule. In two experiments, we explored how initial patterns of sucrose availability influenced consumption when access conditions changed. In Phase I of a 2 by 2 experiment 1, rats given E3DA to 4% sucrose approximately doubled the intake of rats given EDA. In Phase II, half the EDA rats were shifted to E3DA and they rapidly increased their sucrose intake, but their sucrose consumption remained below that of the Phase I E3DA rats. Rats shifted from E3DA to EDA only gradually reduced their intake over the 40 days. In Phase III, all rats were shifted to alternate day access and the effects of prior phases were still evident. In experiment 2, rats given 40 days of EDA to 4% sucrose and then shifted to E3DA showed almost identical sucrose intake increases as age-matched rats with no previous sucrose experience. The period of EDA to sucrose did not influence the magnitude of the E3DA effect. In a third experiment, we found that older rats showed an intermittency effect similar to what we have found with younger rats. Limited or unpredictable availability of a food source, even after a period of abundance, can produce a profound positive change in an animal's evaluation of the item.
abstractGer	Ad lib fed male rats with 23 h every third day access (E3DA) to 4% sucrose come to double the sucrose intake of rats with everyday access (EDA). These differences are maintained if all rats are then put on an alternate day schedule. In two experiments, we explored how initial patterns of sucrose availability influenced consumption when access conditions changed. In Phase I of a 2 by 2 experiment 1, rats given E3DA to 4% sucrose approximately doubled the intake of rats given EDA. In Phase II, half the EDA rats were shifted to E3DA and they rapidly increased their sucrose intake, but their sucrose consumption remained below that of the Phase I E3DA rats. Rats shifted from E3DA to EDA only gradually reduced their intake over the 40 days. In Phase III, all rats were shifted to alternate day access and the effects of prior phases were still evident. In experiment 2, rats given 40 days of EDA to 4% sucrose and then shifted to E3DA showed almost identical sucrose intake increases as age-matched rats with no previous sucrose experience. The period of EDA to sucrose did not influence the magnitude of the E3DA effect. In a third experiment, we found that older rats showed an intermittency effect similar to what we have found with younger rats. Limited or unpredictable availability of a food source, even after a period of abundance, can produce a profound positive change in an animal's evaluation of the item.
abstract_unstemmed	Ad lib fed male rats with 23 h every third day access (E3DA) to 4% sucrose come to double the sucrose intake of rats with everyday access (EDA). These differences are maintained if all rats are then put on an alternate day schedule. In two experiments, we explored how initial patterns of sucrose availability influenced consumption when access conditions changed. In Phase I of a 2 by 2 experiment 1, rats given E3DA to 4% sucrose approximately doubled the intake of rats given EDA. In Phase II, half the EDA rats were shifted to E3DA and they rapidly increased their sucrose intake, but their sucrose consumption remained below that of the Phase I E3DA rats. Rats shifted from E3DA to EDA only gradually reduced their intake over the 40 days. In Phase III, all rats were shifted to alternate day access and the effects of prior phases were still evident. In experiment 2, rats given 40 days of EDA to 4% sucrose and then shifted to E3DA showed almost identical sucrose intake increases as age-matched rats with no previous sucrose experience. The period of EDA to sucrose did not influence the magnitude of the E3DA effect. In a third experiment, we found that older rats showed an intermittency effect similar to what we have found with younger rats. Limited or unpredictable availability of a food source, even after a period of abundance, can produce a profound positive change in an animal's evaluation of the item.
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title_short	Acquisition and persistence of intermittent access-induced escalated sucrose intake in male rats
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up_date	2024-07-06T17:28:49.952Z
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Acquisition and persistence of intermittent access-induced escalated sucrose intake in male rats

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