Contrasting effects of group housing and isolation on subsequent open field exploration in laboratory rats

Archer, John

doi:10.3758/bf03332812

Cited by 34 publications

(21 citation statements)

References 7 publications

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“…The results show that the introduction of differential housing conditions at weaning rather than at 40 days of age produces activity differences in the opposite direction to those found by Archer (1969); isolated female rats were more active than control-grouped animals in the open field. In that isolated rats are supposed to show greater emotionality and diminished exploratory behavior in such a novel test situation (Archer, 1970), this is an interesting result.…”

Section: Discussionmentioning

confidence: 66%

“…spontaneous or restless activity (e.g.. Essman. 1q66) or locomotor activity (e.g.. Archer, 1969). may influence the results obtained.…”

Section: Discussionmentioning

confidence: 99%

“…While some investigations have shown isolates to be less active than grouped animals in a novel test situation (Stern, Winokur, Eisenstein, Taylor, & Sly, 1960;Moyer & Korn, 1965;Archer, 1969), others have shown the reverse to be true (Essman, 1966;Weltman, Sackler, & Sparber, 1966). Syme and Hughes (1972) and Syme", in two studies comparing the activity of isolated and grouped rats, suggested several reasons for these discrepancies.…”

mentioning

confidence: 99%

“…The present experiment was designed primarily to investigate the effect of imposing different housing conditions at weaning rather than at some later time. In contrast to Archer (1969), who isolated female rats at 40 days of age and compared their activity with that of grouped animals 24 weeks later, this study used female rats isolated at weaning and tested them after the same period in comparison with control-grouped and crowded animals. Adrenal weights, as a supplementary index of social stress (Schnurer, 1963;Barnett, 1964), were obtained after 3 and 6 months.…”

mentioning

confidence: 99%

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Social isolation at weaning: Some effects on two measures of activity

Syme

1973

Animal Learning & Behavior

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Section: Discussionmentioning

confidence: 66%

“…spontaneous or restless activity (e.g.. Essman. 1q66) or locomotor activity (e.g.. Archer, 1969). may influence the results obtained.…”

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Social isolation at weaning: Some effects on two measures of activity

Syme

1973

Animal Learning & Behavior

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“…Korn and Moyer (1968) found that individually housed Sprague-Dawley rats of either sex were less active than group-housed counterparts; Archer (1969) reported a similar result only for female Wistar rats, there being no ambulation differences in male differentially housed rats. The influence of sex variables was therefore also examined in this study.…”

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confidence: 61%

Activity differences of individually and group-housed male and female rats

Dalrymple‐Alford

Benton

1981

Animal Learning & Behavior

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Previous comparisons of the activity differences of individually and group-housed rats have produced inconsistent findings; therefore, we examined activity using three measures: openfield ambulation, nonspecific circadian activity, and rearing behavior. Open-field ambulation in two 5·day tests confirmed our prediction that isolates would be initially less active but later more active than group·housed rats. Isolates habituated more slowly to the activity monitor and tended to be more active during the light half of the 24·h cycle. In the rearing test, isolates showed elevated and more persistent activity than group-housed rats. All these activity differences were prevalent in both male and female rats. The results are interpreted in terms of the influence of differential housing on "fear responses," exploration of a novel environment, and differences in habituation/adaptation processes.

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The effects of age and isolation period on two phases of behavioral response to foot shock in isolation‐reared rats

Arakawa

2002

Developmental Psychobiology

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Using rats as subjects, the effects of a period of isolation and the subjects' age during isolation on the response to foot shock were systematically examined in three experiments. Both the thresholds of shock that evoked a jumping response and that evoked a thrashing response were measured. The results suggest that the threshold for jumping response decreased when rats were isolated during the postweaning stage of development. On the other hand, the threshold for thrashing response decreased when the subjects were isolated for more than 39 days, independently of their age during isolation. Possible causes of the differential effects of these two factors are discussed in relation to the developmental process of these two behavioral indices.

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Contrasting effects of group housing and isolation on subsequent open field exploration in laboratory rats

Cited by 34 publications

References 7 publications

Social isolation at weaning: Some effects on two measures of activity

Social isolation at weaning: Some effects on two measures of activity

Activity differences of individually and group-housed male and female rats

The effects of age and isolation period on two phases of behavioral response to foot shock in isolation‐reared rats

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