Polyethism in social interactions in ants.

abstract：:Most primates live in social groups which survival and stability depend on individuals' abilities to create strong social relationships with other group members. The existence of those groups requires to identify individuals and to assign to each of them a social status. Individual recognition can be achieved through ...

journal_title：Behavioural processes

authors： Dufour V,Pascalis O,Petit O

更新日期：2006-07-01 00:00:00

abstract：:Operant and maze tasks in mice are limited by the small number of trials possible in a session before mice lose motivation. We hypothesized that by manipulating reward size and session length, motivation, and hence performance, would be maintained in an automated T-maze. We predicted that larger rewards and shorter se...

journal_title：Behavioural processes

authors： Gaskill BN,Lucas JR,Pajor EA,Garner JP

更新日期：2011-02-01 00:00:00

abstract：:Prey may use multiple sensory channels to detect predators, whose cues may differ in altered sensory environments, such as turbid conditions. Depending on the environment, prey may use cues in an additive/complementary manner or in a compensatory manner. First, to determine whether the purely aquatic Barton Springs sa...

journal_title：Behavioural processes

authors： Zabierek KC,Gabor CR

更新日期：2016-09-01 00:00:00

abstract：:In the fish Aidablennius sphynx, in which males continuously care for up to 7000 eggs throughout the breeding season, females prefer to mate with males that already guard eggs. The present study shows that this preference appears to be adaptive because the probability of eggs being cannibalized decreased with brood si...

journal_title：Behavioural processes

authors： Kraak SB

更新日期：1996-02-01 00:00:00

abstract：:Animals in unfamiliar environments may increase exploratory movements, which may result in predation mortalities (the site familiarity hypothesis). Furthermore, increases in resource dispersion may reduce animal foraging time in small patches, and increase movements and home ranges of animals to acquire sufficient res...

journal_title：Behavioural processes

authors： Marable MK,Belant JL,Godwin D,Wang G

更新日期：2012-09-01 00:00:00

abstract：:Experiment I used non-naive pigeons having previously performed on both keypecking and treadlepressing Fixed Interval schedules. In condition IT, treadlepressing was reinforced on successive Fixed Interval 60 seconds, Fixed Time 60 seconds and Fixed Interval 60 seconds schedules. Subsequently (condition IK), the same ...

journal_title：Behavioural processes

authors： Lejeune H,Jasselette P

更新日期：1985-08-01 00:00:00

abstract：:Emotional contagion occurs when an individual acquires the emotional state of another via social cues, and is an important component of empathy. Empathic responses seen in rodents are often explained by emotional contagion. Rats emit 50kHz ultrasonic vocalizations (USVs) in positive contexts, and emit 22kHz USVs in ne...

journal_title：Behavioural processes

authors： Saito Y,Yuki S,Seki Y,Kagawa H,Okanoya K

更新日期：2016-11-01 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

authors： Maes JH,Vossen JM

更新日期：1996-09-01 00:00:00

abstract：:The present study investigated whether rats' rates of licking or pressing a lever for 1% liquid sucrose delivered by a continuous reinforcement schedule would decrease (contrast) or increase (induction) when the upcoming period would allow access to 32% sucrose and whether such changes would be influenced by how long ...

journal_title：Behavioural processes

authors： Weatherly JN,Nurnberger JT,Arthur EI,King BM

更新日期：2005-08-31 00:00:00

abstract：:Chicks were trained to peck on a small coloured (red or green) box for food reinforcement. They were then presented with one box identical to that used during training (familiar) and one of a different colour (unfamiliar). Food reinforcement was delivered for pecking either box, and the right-left position of the two ...

journal_title：Behavioural processes

authors： Regolin L,Vallortigara G

更新日期：1996-08-01 00:00:00

abstract：:Stereotypies often develop in environments that independent evidence shows cause poor welfare. Thus the development od stereotypies indicates that well-being has probably been poor, with the animal motivated to show a behaviour pattern that it could not perform normally or to completion. The continued performance of s...

journal_title：Behavioural processes

authors： Mason GJ

更新日期：1991-12-01 00:00:00

abstract：:Twenty-six male rats, maintained on a 23-h food deprivation regime, were trained on a DRL learning schedule. During pretraining (CRF) rats were placed in two groups according to speed in obtaining the criterion (good and poor learners). The performance of good and poor learners, injected with lysine vasopressin (LVP) ...

journal_title：Behavioural processes

authors： Alliot J,Alexinsky T

更新日期：1983-10-01 00:00:00

abstract：:Previously extinguished operant responding recurs under both resurgence and renewal procedures, but the effects of combining these procedures on recurrence has not been studied. Because renewal and resurgence are known to independently produce response recurrence, we examined whether greater resurgence would occur if ...

journal_title：Behavioural processes

authors： Kincaid SL,Lattal KA,Spence J

更新日期：2015-06-01 00:00:00

abstract：:Four pigeons responded under a progressive-delay procedure. In a signaled-delay condition, a chained variable interval (VI) 30-s progressive time (PT) 4-s schedule was arranged; in an unsignaled-delay condition, a tandem VI 30-s PT 4-s schedule was arranged. Two pigeons experienced a signaled-unsignaled-signaled seque...

journal_title：Behavioural processes

authors： Thomas LD,Hughes CE,Pitts RC

更新日期：2009-06-01 00:00:00

abstract：:Three pigeons were exposed for 22 sessions to a variant of a multiple variable-time 1-min extinction reinforcement schedule in the presence of a white key. A 1.5-s stimulus change (red) preceded each 1-min component during which food was delivered and a 1.5-s stimulus change (green) preceded each extinction component....

journal_title：Behavioural processes

authors： Steffen P,Liguori A,Marcucella H

更新日期：1990-06-01 00:00:00

abstract：:Two conditioned taste aversion experiments with rats assessed the relative effectiveness in providing evidence of within-compound learning of different procedures that involve the initial compound presentation of two stimuli, A and X, with the unconditioned stimulus (i.e., AX+). In Experiment 1, following a single AX+...

journal_title：Behavioural processes

authors： Pineño O

更新日期：2007-05-01 00:00:00

abstract：:Adult male Wistar rats were trained to find an escape box in the Barnes maze in order to characterize the extinction process of a learned spatial preference. To do so, once they had fully acquired the spatial task, they were repeatedly exposed to the maze without the escape box. Multiple behavioral measurements (group...

journal_title：Behavioural processes

authors： Vargas-López V,Lamprea MR,Múnera A

更新日期：2011-01-01 00:00:00

abstract：:Paternal care is uncommon in mammals where males are more often involved in sexual competition than in providing care for their own offspring. However some species present some form of paternal care and, most of the time, this phenomenon is associated with a monogamous mating system. Mice of the genus Mus, such as the...

journal_title：Behavioural processes

authors： Patris B,Baudoin C

更新日期：2000-10-05 00:00:00

abstract：:As reinforcers are delivered for a particular response, that response increases. Other similar responses also increase, with the extent to which this increase is seen being positively related to the similarity between the responses. This process, called induction, is pronounced during initial response acquisition, and...

journal_title：Behavioural processes

authors： Jarmolowicz DP,Hudnall JL,Darden AC,Lemley SM,Sofis MJ

更新日期：2015-11-01 00:00:00

abstract：:Hypothalamic levels of TRH were contrasted in identified dominant and submissive (housed together for 4 days) Swiss male mice and undisturbed 'isolated' counterparts. Both dominants and submissives had significantly higher titres of this hormone than the 'isolates', suggesting that the experience of fighting relativel...

journal_title：Behavioural processes

authors： Mainardi M,Vescovi PP,Valenti G,Martino E,Brain PF

更新日期：1984-01-01 00:00:00

abstract：:Male and female rats of the inbred August and Fischer strains were reared during two months after weaning either in a standard laboratory environment (controls) or in a more complex environment (treated animals). The performance of these rats was measured afterwards in an operant conditioning situation with positive r...

journal_title：Behavioural processes

authors： Will B,Ungerer A,Pallaud B,Ropartz P

更新日期：1977-12-01 00:00:00

abstract：:The present study investigated in 5- and 8-year-olds, as well as in adults, the effect of verbal counting on temporal discrimination behavior in a generalization task with two duration ranges in order to test the scalar timing property. The results showed that counting improved temporal sensitivity in all age groups, ...

journal_title：Behavioural processes

authors： Clément A,Droit-Volet S

更新日期：2006-02-28 00:00:00

abstract：:The effects of d-amphetamine on pigeons' key-pecking under the peak interval (PI) procedure were investigated in two experiments. In experiment I the effects of doses of d-amphetamine from 0.75 to 3.0 mg/kg on responding under PI 30 and 45 s were studied for 10 successive days. Reductions in peak time and wait time we...

journal_title：Behavioural processes

authors： Saulsgiver KA,McClure EA,Wynne CD

更新日期：2006-02-28 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

authors： Carducci P,Squillace V,Manzi G,Truppa V

更新日期：2020-03-01 00:00:00

abstract：:Norway rat subjects were exposed for either 3 or 10 days to conspecific demonstrators eating a cinnamon-flavoured, protein-deficient diet. While in contact with their demonstrators, and for several days thereafter, subjects were offered a choice between the cinnamon-flavoured, protein-deficient diet that their demonst...

journal_title：Behavioural processes

authors： Galef BG Jr,Whiskin EE

更新日期：1995-09-01 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

authors： da Silva CC,Lazzaretti C,Fontanive T,Dartora DR,Bauereis B,Gamaro GD

更新日期：2014-03-01 00:00:00

abstract：:Preexposures to a punctate stimulus or to an external context were examined for their effect on the competition for associative strength between context and stimulus in subsequent aversive classical conditioning. Using rats as subjects and freezing as the index of conditioned responding, Experiment 1 showed that preex...

journal_title：Behavioural processes

authors： Maes JH,Vossen JM

更新日期：1993-08-01 00:00:00

abstract：:Elucidating the multi-faceted relationship between cognitive competence and affective states is a major pursuit in behavioral sciences. Mood disorders constitute a good research model for this question, as cognitive impairment may accompany clinical depression and persist after full remission. This suggests cognitive ...

journal_title：Behavioural processes

authors： Atesyakar N,Canbeyli R,Unal G

更新日期：2020-05-01 00:00:00

abstract：:Adult participants played computerised games of "Paper Scissors Rock". Participants in one group were told that they were playing against the computer, and those in the other group were told that they were playing against another participant in the adjacent room. The participant who won the most games would receive a ...

journal_title：Behavioural processes

authors： Lie C,Baxter J,Alsop B

更新日期：2013-10-01 00:00:00

abstract：:Research on categorization has changed over time, and some of these changes resemble how Wittgenstein's views changed from his Tractatus Logico-Philosophicus to his Philosophical Investigations. Wittgenstein initially focused on unambiguous, abstract, parsimonious, logical propositions and rules, and on independent, s...

journal_title：Behavioural processes

authors： Shimp CP

更新日期：2004-06-30 00:00:00