Early social deprivation and the ontogeny of unrestricted social behavior in the laboratory rat

Day, H. D.; Seay, Billy M.; Hale, Penny; Hendricks, Dan

doi:10.1002/dev.420150108

Cited by 29 publications

(8 citation statements)

References 27 publications

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“…More generalized disruptions of sexual behavior also have been reported (Duffy & Hendricks, 1973;Gerall, Ward, & Gerall, 1967). Rats raised in social isolation during the play period have been reported to be more aggressive (Byrd & Briner, 1999;Day, Seay, Hale, & Hendricks, 1982), even against members of different species (Johnson, DeSisto, & Koenig, 1972;but see Portegal & Einon, 1989). In a careful analysis of the effects of social isolation during the play period, rats were found to have an impaired ability to address social challenges such as social defeat, but to behave normally in facing nonsocial challenges such as open-field tests and plus-maze learning (van den Berg, Hol, et al, 1999).…”

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confidence: 90%

Play deprivation without social isolation: Housing controls

Holloway

Suter

2003

Developmental Psychobiology

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Three experiments were conducted to control for the effects of housing conditions during play deprivation on subsequent play rebound in periadolescent rats. To address play deprivation without the confound of social isolation, in Experiment 1, pairs of subjects were housed either in cages divided by wire mesh that allowed for olfactory, visual, auditory, and tactile interactions with a same-sex age-mate but prevented rough and tumble play or in standard cages. Running wheels were provided to similarly housed subjects in Experiment 2 to control for the ability to engage in physical activity. In Experiment 3, standard and brooder cages were used to control for the effects of housing area. Play-deprived subjects in all conditions showed a greatly increased number of play responses immediately following deprivation. The results from these experiments more clearly indicate that the absence of play is the crucial feature that brings about play rebound following deprivation.

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confidence: 90%

Play deprivation without social isolation: Housing controls

Holloway

Suter

2003

Developmental Psychobiology

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“…For example, although isolation rearing disrupts male sexual behavior, it has little effect on fema1e sexual behavior (Duffy & Hendricks, 1973;Hansen, 1977). Isolation rearing does, however, increase aggression, reduce affiliative behavior, and increase open field activity in female as weIl as male rats (Dalrymple-Alford & Benton, 1981;Day et al, 1982).…”

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confidence: 99%

Effects of rearing condition, gender, and sexual experience on odor preferences and urine marking in Long-Evans rats

Brown

1991

Animal Learning & Behavior

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Two experiments investigated the effects of isolation rearing on olfactory communication in rats. In Experiment 1, there were significant rearing and gender effects on the time spent investigating conspecific odors, the preferences for these odors, and the amount of urine marking over these odors by sexually naive male and female rats. Experiment 2 found significant effects of rearing condition and sexual experience on the responses of male rats to conspecific odors. In general, isolation rearing increased the time spent investigating conspecific odors, but reduced the amount ofurine marking over these odors and altered the odor preference scales. These results suggest that the responses of both male and female rats to the odors of conspecifics are modified by rearing experience. The importance of learning conspecific odor signals for the development of normal social behavior is discussed.

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“…One explanation for this phenomenon is that post-weaning individual housing might cause alteration in the recognition of social cues from sexually receptive female rats. Increased aggression is one of the most well-known abnormal male–male social interactions observed in adult male rats housed individually after weaning [5]. An earlier study demonstrated that post-weaning individual housing might not only increase the level of aggressiveness, but also might result in abnormal attack patterns and deficits in social communication in adult male rats [17].…”

Section: Discussionmentioning

confidence: 99%

“…Post-weaning individual housing induces significant alterations in social behaviors of laboratory rats compared with socially housed (i.e., group-housed) rats [1, 3, 5,6,7, 15, 20, 21]. Our previous study showed that adult male rats that were housed individually after weaning emitted fewer ultrasonic vocalizations referred to as “50-kHz calls” compared with rats housed socially after weaning that encountered sexually receptive female rats [11].…”

Section: Introductionmentioning

confidence: 99%

Effect of Post-Weaning Individual Housing on Autonomic Responses in Male Rats to Sexually Receptive Female Rats

2013

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Post-weaning individual housing induces significant alterations in the reward system of adult male rats presented with sexually receptive female rats. In this study, we examined the effects of post-weaning individual housing on autonomic nervous activity in adult male rats during encounters with sexually receptive female rats to assess whether different affective states depending on post-weaning housing conditions are produced. Changes in heart rate and spectral parameters of heart rate variability indicated that in post-weaning individually housed male rats, both sympathetic and parasympathetic activity increased with no change in the sympathovagal balance, while in post-weaning socially housed male rats, both sympathetic and parasympathetic activity decreased with a predominance of parasympathetic activity. These two patterns of shifts in sympathovagal balances closely resembled changes in autonomic nervous activity with regard to classical appetitive conditioning in male rats. The autonomic changes in male rats housed individually after weaning corresponded to changes associated with the reward-expecting state evoked by the conditioned stimulus, and the autonomic changes observed in male rats housed socially after weaning corresponded to changes associated with the reward-receiving state evoked by the unconditioned stimulus. These results suggest that different affective states were induced in adult male rats during sexual encounters depending on male–male social interactions after weaning. The remarkable change caused by post-weaning individual housing may be ascribed to alteration of the reward system during sexual encounters induced by deficiency of intermale social communication after weaning.

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Early social deprivation and the ontogeny of unrestricted social behavior in the laboratory rat

Cited by 29 publications

References 27 publications

Play deprivation without social isolation: Housing controls

Play deprivation without social isolation: Housing controls

Effects of rearing condition, gender, and sexual experience on odor preferences and urine marking in Long-Evans rats

Effect of Post-Weaning Individual Housing on Autonomic Responses in Male Rats to Sexually Receptive Female Rats

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