The activity of the prelimbic cortex in rats is enhanced during the cooperative acquisition of an instrumental learning task

Conde-Moro, Ana Rocio; Rocha-Almeida, Florbela; Sánchez-Campusano, Raudel; Delgado‐García, José M.; Gruart, Agnès

doi:10.1016/j.pneurobio.2019.101692

Cited by 21 publications

(30 citation statements)

References 56 publications

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“…8). The FR control procedure replicated previous findings for variable‐interval schedules (Tan and Hackenberg, 2016; de Carvalho et al, 2018, 2019) and from experiments that showed higher rates of coordination in mutual contingencies than in independent reinforcement contingencies (Conde‐Moro et al, 2019; Tsoory et al, 2012). Taken together, these findings suggest that the rate of coordinated responses decreases as the (coordinated) response–reinforcer contingency is relaxed or discontinued (Catania, 2013).…”

Section: Discussionsupporting

confidence: 78%

“…reinforcement contingencies (Conde-Moro et al, 2019;Tsoory et al, 2012). Taken together, these findings suggest that the rate of coordinated responses decreases as the (coordinated) response-reinforcer contingency is relaxed or discontinued (Catania, 2013).…”

Section: Discussionmentioning

confidence: 70%

“…In these and other experiments (e.g., Conde-Moro et al, 2019;Łopuch & Popik, 2011), mutual reinforcement followed every coordinated response (i.e., continuous reinforcement [FR 1]). Considering that reinforcers are often intermittently available in natural situations (e.g., prey capture; Boesch & Boesch, 1989;Pitman & Durban, 2011;Stander, 1992), schedules of reinforcement are a potential methodological tool to investigate cooperation.…”

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confidence: 99%

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Cooperative responding in rats: II. Performance on fixed‐ratio schedules of mutual reinforcement

Carvalho¹,

Santos²,

Regaço³

et al. 2020

J Exper Analysis Behavior

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Coordinated responses of 5 dyads of rats were investigated under fixed-ratio (FR) schedules of mutual water reinforcement. Coordinated responding was defined as 2 consecutive lever-presses, 1 from each of 2 rats, occurring <.5 s apart. In the FR schedules, each coordinated episode was defined as 1 response in the FR sequence. The size of FR schedules was parametrically manipulated assuming the values of FR 1, 6, 12, 18, 24, 30, 50, and 9, in this order. Each FR remained in effect until responding reached stability. Under all conditions, pairs of rats received access to water simultaneously (mutual reinforcement). Rates and proportions of coordinated responding showed a bitonic inverted U-shaped function of ratio size. Postreinforcement pauses increased systematically as the interreinforcement interval increased. Local rates and proportions increased as a function of response location within ratios. Results of a control condition with relaxed temporal constraints for mutual reinforcement showed decreases in rates and proportion of coordinated responses, suggesting that the coordinated responses were controlled by the mutual reinforcement contingencies. The present experiment showed that coordinated responding is quantitatively affected by 3 properties of FR schedules: response requirement, reinforcement rates, and proximity to reinforcement.

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Section: Discussionsupporting

confidence: 78%

Section: Discussionmentioning

confidence: 70%

mentioning

confidence: 99%

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Cooperative responding in rats: II. Performance on fixed‐ratio schedules of mutual reinforcement

Carvalho¹,

Santos²,

Regaço³

et al. 2020

J Exper Analysis Behavior

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“…Intense efforts in the last years have highlighted the Norway rat as a very interesting animal model to identify the proximate mechanisms and neural circuits of highly sophisticated social function. (Knapska et al , 2006, 2010; Atsak et al , 2011; Pereira et al , 2012; Cruz et al , 2020; Han et al , 2019; Hernandez-Lallement et al , 2020; Kashtelyan et al , 2014; Daniel, 1942; Conde-Moro et al , 2019; Schuster and Perelberg, 2004; Rutte and Taborsky, 2007, 2008; Schneeberger, Dietz and Taborsky, 2012; Viana et al , 2010; Bartal, Decety and Mason, 2011; Ben-Ami Bartal et al , 2014; Márquez et al , 2015; Kentrop et al , 2020; Hillman and Bilkey, 2012). It is conceivable that each of these behaviors is modulated in some way by hierarchy (subtly or not), and therefore a more complete understanding of rat social behavior and its underlying neural mechanisms should consistently take hierarchy into account.…”

Section: Discussionmentioning

confidence: 99%

“…Norway rats, used as a model system amenable to monitoring, mapping and perturbation of neuronal circuits, live in complex social groups in the wild (Schweinfurth, 2020). This has motivated a wave of recent laboratory studies, that uncover the diversity and sophistication of rat’s social skills (Knapska et al 2006; Atsak et al 2011; Knapska et al 2010; Pereira et al 2012; Cruz et al 2020; Han et al 2019; Hernandez-Lallement et al 2020; Kashtelyan et al 2014; Daniel 1942; Conde-Moro et al 2019; Viana et al 2010; Bartal, Decety, and Mason 2011; Ben-Ami Bartal et al 2014; Márquez et al 2015; Kentrop et al 2020; Hillman and Bilkey 2012; Rutte and Taborsky 2007; 2008; Schuster and Perelberg 2004; Schneeberger, Dietz, and Taborsky 2012 see Schweinfurth 2020 for review), the neuronal basis of which are starting to be dissected (Hillman and Bilkey, 2012; Twining et al , 2017; Carrillo et al , 2019; Pereira, Farias and Moita, 2020).…”

Section: Introductionmentioning

confidence: 99%

Novel Competition test for food rewards reveals stable dominance status in adult male rats

Costa

Moita

Márquez

2020

Preprint

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Social hierarchy is a potent modulator of behavior in many species, including humans, that is typically established through overt agonistic interactions between individuals in the group. Once established, social ranks are maintained through subtler interactions allowing the redirection of energy away from agonistic interactions towards other needs. Most of the available tasks for assessing social rank in rodents allow the study of the mechanisms by which social hierarches are formed but fail to assess the maintenance of established hierarchies between stable pairs of animals, which might rely on distinct neurobiological mechanisms. Here we present and validate a novel trial-based dominancy assay, the modified Food Competition test, where established social hierarchies can be identified in the home cage of non-food deprived pairs of male rats. In this task, we introduce a small conflict in the home cage, where access to a new feeder containing palatable pellets can only be gained by one animal at a time. We found that this subtle conflict triggered asymmetric social interactions and resulted in higher consumption of food by one of the animals in the pair. To assess the reliability of the observed asymmetries as reflecting dominance relationships we investigated the behavior of same rat dyads in multiple social tasks adapted from social hierarchy studies. We found a positive correlation in dominance indices across most tests used. Our findings reveal stable dominance status in pair housed rats and provide a novel tool for the evaluation of established social hierarchies, the modified Food Competition test, that is robust and easy to implement, thus expanding the set of tasks available to study dominance in the lab.

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Electrophysiological Recordings in Behaving Animals

Gruart¹,

Delgado‐García²

2021

Neuromethods

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The activity of the prelimbic cortex in rats is enhanced during the cooperative acquisition of an instrumental learning task

Cited by 21 publications

References 56 publications

Cooperative responding in rats: II. Performance on fixed‐ratio schedules of mutual reinforcement

Cooperative responding in rats: II. Performance on fixed‐ratio schedules of mutual reinforcement

Novel Competition test for food rewards reveals stable dominance status in adult male rats

Electrophysiological Recordings in Behaving Animals

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