Restricted feeding facilitates time–place learning in adult rats

Lukoyanov, Nikolay; Pereira, Pedro; Mesquita, Rui; Andrade, José Paulo

doi:10.1016/s0166-4328(02)00036-0

Cited by 34 publications

(31 citation statements)

References 38 publications

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“…Moreover, the fish did not need to socially interact or spend energy on other demanding activities or stressful situations, the energy requirement hence in the aquarium conditions may have been low and 1.5% may have represented an ideal amount of food for tilapia. Lukoyanov et al (2002) reported that food restriction facilitates rat time-place learning and rats that were fed ad libitum failed to perform the task. Moreover, Widman et al (2000Widman et al ( , 2004 reported that rats augmented time-place discrimination when submitted to an increased response cost task, suggesting that rats are not able to promptly display time-place learning but that the response cost is an important trigger for this kind of discrimination.…”

Section: Discussionmentioning

confidence: 99%

Testing time–place learning in the cichlid fish Nile tilapia

Delício

Luchiari

Barreto

et al. 2005

J Ethol

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Time-place learning based on food association was investigated in the fish Nile tilapia. During a 30-day period, food was placed at one side of the aquarium (containing three compartments) in the morning and at the opposite side in the afternoon. Learning was inferred by the number of correct side choices of all fish in each day of test (15th, 30th). During the test day, fish were not fed. The Nile tilapia did not learn to switch sides at the correct day period in order to get food, suggesting thus that this species does not have time-place learning ability.

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Section: Discussionmentioning

confidence: 99%

Testing time–place learning in the cichlid fish Nile tilapia

Delício

Luchiari

Barreto

et al. 2005

J Ethol

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“…However, by 4 days of habituation to the temporal context, Molero-Chamizo (2013) found temporal specificity of the latent inhibition of CTA without considering any restriction in the amount of taste stimulus during conditioning. Although in both cases different processes were measured (CTA or latent inhibition of CTA), it seems necessary to clarify whether a restriction in the amount of taste stimulus during conditioning (and therefore an external control of the intake) facilitates or hinders the temporal specificity of the latent inhibition of CTA, similar to that described in other learning processes (De la Casa & Lubow, 1995;González, Morillas, & Hall, 2015;Lukoyanov, Pereira, Mesquita, & Andrade, 2002). Thus, the aim of this study is to analyze the effects of restriction versus no restriction in the intake of the taste stimulus at the stage of conditioning on the temporal specificity of the latent inhibition of CTA.…”

Section: Taste Stimulus Restriction Temporal Contextmentioning

confidence: 99%

Circadian-temporal context and latent inhibition of conditioned taste aversion: Effect of restriction in the intake of the conditioned taste stimulus

Molero‐Chamizo

2016

Learn Behav

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Latent inhibition of conditioned taste aversion (CTA) is sensitive to changes in the temporal context. A change in the time of day of conditioning with respect to the time of day of the preexposure can disrupt the latent inhibition. This contextual change in the time of day may reveal a temporal specificity of latent inhibition. The optimum procedure to induce this temporal specificity is not well established. For example, it has been shown that a long period of habituation to temporal contexts is one factor that can determine the effect. However, the experimental conditions on the conditioning day that facilitate this phenomenon are unknown. The aim of this study is to elucidate whether a restriction in the intake of the conditioned taste stimulus affects the temporal specificity of latent inhibition. Two main groups of Wistar rats were tested in a latent inhibition of CTA paradigm, in which the temporal specificity of this phenomenon was analyzed by a change in the time of day of conditioning. The intake of the taste stimulus was restricted in the conditioning day in one of the groups, but this restriction was not applied in the other group. The results indicated temporal specificity of latent inhibition only in the group without restriction, but not in the group with limitation in the intake of the taste stimulus during conditioning. These findings can help to elucidate the characteristics of the procedure to induce temporal specificity of latent inhibition.

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“…Ad libitum fed animals and animals that were only food deprived to receive 90% of daily ad libitum food consumption did not perform above chance level. Although the use of an ordinal- or interval timing strategy was not excluded experimentally, the authors suggested that food deprivation enables access to the necessary temporal information from the FEO (Lukoyanov et al, 2002). …”

Section: A Literature Overview On Time-place Learningmentioning

confidence: 99%

Circadian clocks and memory: time-place learning

Mulder¹,

Gerkema²,

Zee³

2013

Front. Mol. Neurosci.

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Time-Place learning (TPL) refers to the ability of animals to remember important events that vary in both time and place. This ability is thought to be functional to optimize resource localization and predator avoidance in a circadian changing environment. Various studies have indicated that animals use their circadian system for TPL. However, not much is known about this specific role of the circadian system in cognition. This review aims to put TPL in a broader context and to provide an overview of historical background, functional aspects, and future perspectives of TPL. Recent advances have increased our knowledge on establishing TPL in a laboratory setting, leading to the development of a behavioral paradigm demonstrating the circadian nature of TPL in mice. This has enabled the investigation of circadian clock components on a functional behavioral level. Circadian TPL (cTPL) was found to be Cry clock gene dependent, confirming the essential role of Cry genes in circadian rhythms. In contrast, preliminary results have shown that cTPL is independent of Per genes. Circadian system decline with aging predicts that cTPL is age sensitive, potentially qualifying TPL as a functional model for episodic memory and aging. The underlying neurobiological mechanism of TPL awaits further examination. Here we discuss some putative mechanisms.

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Restricted feeding facilitates time–place learning in adult rats

Cited by 34 publications

References 38 publications

Testing time–place learning in the cichlid fish Nile tilapia

Testing time–place learning in the cichlid fish Nile tilapia

Circadian-temporal context and latent inhibition of conditioned taste aversion: Effect of restriction in the intake of the conditioned taste stimulus

Circadian clocks and memory: time-place learning

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