Abstract：
:Convergent evidence in literature shows that rapid disruption of maternal care and breastfeeding due to an early weaning protocol changes the development of several neurobehavioral patterns in rodents, including the circadian pattern of feeding. The serotoninergic system has been associated with the control of feeding patterns. Therefore, we aim to evaluate the patterns of feeding, the mRNA expression of 5 H T-1b, 5 H T-2c, and SERT on the hypothalamus, brainstem, and the body weight of female juvenile Wistar rats, submitted to early (PND15) or regular (PND30) weaning. The results demonstrate that early weaning promotes an increase in food intake in a 24 -h period, in the dark phase of the circadian cycle and in the four-hour time intervals at the beginning of the dark and light phases. Also, early weaning decreases the mRNA expression of 5 H T-1b, 5 H T-2c, and SERT on the hypothalamus, but increases it on the brainstem. Additionally, early weaning promotes an increase in body weight. Therefore, the present data demonstrate that early weaning changes the patterns of feeding in juvenile female rats and suggests that this behavioral modification is due to the modulations promoted in the 5 H T-system.
journal_name
Behav Processesjournal_title
Behavioural processesauthors
Tavares GA,Almeida LCDA,de Souza JA,Braz GRF,da Silva MC,Lagranha CJ,do Nascimento E,de Souza SLdoi
10.1016/j.beproc.2019.103981subject
Has Abstractpub_date
2020-01-01 00:00:00pages
103981eissn
0376-6357issn
1872-8308pii
S0376-6357(19)30240-2journal_volume
170pub_type
杂志文章abstract：:Psychological distance to reward, or the segmentation effect, refers to the preference for a terminal link of a concurrent-chains schedule consisting of a simple reinforcement schedule (e.g. fixed interval [FI] 30s) relative to its chained-schedule counterpart (e.g. chained FI 15s FI 15s). This experiment was conducte...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2004.01.003
更新日期：2004-05-31 00:00:00
abstract：:Three mentally retarded humans first acquired a simple discrimination: Simultaneously displayed visual stimuli A1 and A2 functioned as S+ and S-, respectively. The subjects also acquired a conditional discrimination, learning to select visual stimuli B1 and B2 conditionally upon A1 and A2, respectively. Then, B1 and B...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/0376-6357(88)90033-2
更新日期：1988-08-01 00:00:00
abstract：:Primates perceive many object features through vision and touch. To date, little is known on how the synergy of these two sensory modalities contributes to enhance object recognition. Here, we investigated in capuchin monkeys (N = 12) whether manipulating objects and retaining tactile information enhanced visual recog...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2020.104044
更新日期：2020-03-01 00:00:00
abstract：:Specialization of the left and right hemispheres to control behavioural responses may represent one of the mechanisms underlying individual differences in personality structure, as well as the preferential use of one hand. The present study investigated the relationship between personality and hand preference in commo...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2019.103899
更新日期：2019-10-01 00:00:00
abstract：:The present experiments examined whether external contextual stimuli can acquire inhibitory properties through a simple differential context-reinforcement procedure. Rats first received discrimination training sessions in which an electric footshock was consistently delivered in one context, but not in a second, diffe...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/0376-6357(95)00084-4
更新日期：1996-09-01 00:00:00
abstract：:The requirement for assessing the effects of stressor combinations in improving the welfare of animals has not been widely recognised. Knowledge of the effects of concurrent stressors is needed to improve environments such as transport, where animals are presented with many simultaneous challenges. However, no method ...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/s0376-6357(01)00193-0
更新日期：2001-12-03 00:00:00
abstract：:Laying hens oiled the plumage twice a day, while oiling behaviour consisted of a bout of five oilings (median value). During one oiling, a hen collected lipids from the preen gland with her bill and subsequently performed (as a median) five strokes or rubs over and through the feathers. The breast was oiled most, wher...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/0376-6357(91)90088-H
更新日期：1991-07-01 00:00:00
abstract：:Pigeons were trained in a matching-to-duration task using short and long filled intervals. Group 2/8 was trained with 2- and 8-s intervals, Group 4/10 with 4- and 10-s intervals, and group marker with 2- and 8-s intervals presented between 1-s start and stop markers. Extended-delay testing showed no significant choose...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2005.06.008
更新日期：2006-02-28 00:00:00
abstract：:A number of criteria have been suggested for testing if pain occurs in animals, and these include an analgesic effect of opiates (Bateson, 1991). Morphine reduces responses to noxious stimuli in crustaceans but also reduces responsiveness in a non-pain context. Here we use a paradigm in which shore crabs receive a sho...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2011.02.002
更新日期：2011-03-01 00:00:00
abstract：:Weaponry and color badges are commonly theorized to function as visual signals of aggressiveness or fighting ability. However, few studies have supported a signaling function of weaponry, and the role of color in invertebrate competitive interactions remains virtually unexplored. Jumping spiders (Salticidae) make exce...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2011.10.017
更新日期：2012-03-01 00:00:00
abstract：:Chronic mild stress (CMS) is a widely accepted animal model relevant to depression that among other consequences, is chiefly known to induce anhedonia, often assessed as decreased preference for sucrose solution. CMS is also known to affect cognition, particularly memory tasks. In this study we have employed the multi...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2017.12.008
更新日期：2018-02-01 00:00:00
abstract：:The prenatally stressed (PS) rat shows enhanced conditioned fear and increased behavioral inhibition in response to footshock compared to control (CON) rats. It is unclear whether this facilitated learning will occur only with aversive stimulation, or if it will also be observed in the context of positive reinforcemen...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2011.12.003
更新日期：2012-03-01 00:00:00
abstract：:Stress has been shown to negatively affect the immune system, alter the body's metabolism, and play a strong role in the development of mood disorders. These effects are mainly driven through the release of hormones from the hypothalamic-pituitary-adrenal axis (HPA). Additionally, women are more likely to be affected ...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2014.01.022
更新日期：2014-03-01 00:00:00
abstract：:Intra- and interspecific agonistic encounters in Long-Evans and field-trapped Rattus norvegicus and Rattus rattus showed a consistency in the form and character of attack and defensive behaviors. Colony alpha males exhibited high levels of lateral attack, on-top, and chasing behaviors which resulted in a high percenta...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/0376-6357(82)90052-3
更新日期：1982-04-01 00:00:00
abstract：:This study on competition in human groups was performed within the context of the competitive outcome interdependence concept: the degree to which personal outcomes among group members are affected by the consequences of task performance of others, e.g. when one group member gains a high reward for a task, this lowers...
journal_title：Behavioural processes
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.beproc.2015.07.011
更新日期：2015-11-01 00:00:00
abstract：:Propositional models of associative learning postulate that the behavioral impact of regularities in the presence of two events is mediated by the formation of propositions about the relation between these events. Because the mere statistical contingency between events often does not provide enough information to infe...
journal_title：Behavioural processes
pub_type： 杂志文章,评审
doi：10.1016/j.beproc.2014.02.002
更新日期：2014-05-01 00:00:00
abstract：:The debate about whether or not animals have foresight has focused on whether animals can be shown to have episodic future thinking, that is the ability to travel mentally in time and see themselves in the future. This focus has distracted from consideration of other forms of foresight that animals demonstrate. We pro...
journal_title：Behavioural processes
pub_type： 杂志文章,评审
doi：10.1016/j.beproc.2008.12.005
更新日期：2009-03-01 00:00:00
abstract：:What animals know about each other, and how they construct and use knowledge of their social world involves at least an ability to recognise different social categories. Although much evidence has accumulated that animals are able to identify and classify other individuals into different categories, few studies have d...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/0376-6357(94)90060-4
更新日期：1994-12-01 00:00:00
abstract：:The effect of environment on the maturation of sand digging behaviour in cuttlefish was studied. Sand digging behaviour of cuttlefish individually reared on sand was daily observed in their rearing tanks (first study). Other cuttlefish were individually reared from hatching to 2 weeks of life in different conditions (...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2004.04.006
更新日期：2004-09-30 00:00:00
abstract：:Paw use on three tasks in 53 domestic dogs (Canis familiaris) was studied to determine whether the animals exhibited a significant paw preference, and, if so, to explore the direction and strength of the dogs' preferred paw use, both within, and between, tasks. The influence of the dogs' sex on their paw preferences w...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/s0376-6357(02)00161-4
更新日期：2003-02-28 00:00:00
abstract：:The serial order in which events occur can be a signal for different outcomes and therefore might be a determinant of how an animal should respond. In this report, we propose a novel design for studying serial order learning in Pavlovian conditioning. In both Experiments 1a and 1b, hungry rats were trained with succes...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2004.05.003
更新日期：2004-09-30 00:00:00
abstract：:The aim of this study was to analyse fear reactions of 18 adult Romanov ewes individually confronted with 3 visual stimuli, namely pictures of a human, of a sheep or of a traffic cone (control). These pictures were projected in real size on a wall of the test pen by means of a slide projector. Twenty-six behavioural i...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/0376-6357(94)90024-8
更新日期：1994-06-01 00:00:00
abstract：:Two distinct conceptualisations of processing mechanisms have been proposed in the research on the perception of temporal order, one that assumes a central-timing mechanism that is involved in the detection of temporal order independent of modality and stimulus type, another one assuming feature-specific mechanisms th...
journal_title：Behavioural processes
pub_type： 临床试验,杂志文章
doi：10.1016/j.beproc.2005.12.007
更新日期：2006-02-28 00:00:00
abstract：:In the polymorphic harvester ant Messor barbarus, the colony modulates response during foraging according to seed characteristics. The easiness of picking up small seeds (oat fragments or canary seeds) shortens the time lapse between food discovery and the return of scouts to the nest, favouring the onset of recruitme...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2005.08.001
更新日期：2005-11-01 00:00:00
abstract：:The objective of this work was to study the effect of early weaning on alimentary preference for the macronutrients protein, carbohydrate and fat in adult rats. Male Wistar rat pups were weaned by separation from the mother at 15 (D15) or 30 (D30) days old. Body weight and food intake were measured every 30 days until...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2010.09.005
更新日期：2011-01-01 00:00:00
abstract：:Morphological and behavioural effects of testosterone (T) and of 5 α-dihydrotestosterone (5α-DHT) injected daily for a 3-week period at dosages of 0.5, 1, 5 and 10 mg for T and 1 and 5 mg for α-DHT were studied in the adult male castrated Japanese quail. Injections of 0.5 or 1.0 mg T produced only slight development o...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/0376-6357(82)90020-1
更新日期：1982-06-01 00:00:00
abstract：:Recently, Hursh and Silberberg (2008) have advanced a behavior-economic approach to measure the value of reinforcers, in which demand elasticity is measured relative to the point at which price is zero, a technique that allows for comparisons across reinforcers that show different consumption patterns or across differ...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2011.01.007
更新日期：2011-05-01 00:00:00
abstract：:Poor physical abilities of broilers may prevent them from performing behaviours for which they are motivated. The aim of this study was to measure the influence of physical ability and motivation on the performance of broilers in short physical tasks. We tested birds from a fast- and a slow-growing broiler strain in a...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2004.03.015
更新日期：2004-09-30 00:00:00
abstract：:The ability to utilize numerical information can be adaptive in a number of ecological contexts including foraging, mating, parental care, and anti-predator strategies. Numerical abilities of mammals and birds have been studied both in natural conditions and in controlled laboratory conditions using a variety of appro...
journal_title：Behavioural processes
pub_type： 杂志文章,评审
doi：10.1016/j.beproc.2017.02.001
更新日期：2017-08-01 00:00:00
abstract：:We investigated whether the development of spatial behaviour of the domestic chicken is influenced by light exposure of the embryo, as is known to be the case for some other lateralized visual functions. Ninety-six chicks were incubated in the dark or exposed to light during the final days of incubation. Half of the c...
journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2008.12.006
更新日期：2009-05-01 00:00:00
