Delimitation of a sensitive period for the effects of early life undernutrition on social behaviour of adult male rats

Byrne, Elizabeth; Smart, James L.

doi:10.1016/0031-9384(80)90024-4

Cited by 2 publications

(3 citation statements)

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“…This suggests that there is brain sparing during postweaning development in the protein-malnourished rat. This conclusion is also supported by the data reported by Byrne and Smart (1980). They reported that social behavior in the rat is also unaffected by postweaning undernutrition.…”

Section: Discussionsupporting

confidence: 85%

Effects of early protein malnutrition on learning in the rat

Remley

Armstrong

Gilman

et al. 1980

Bull. Psychon. Soc.

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Animals were reared on a diet of commercially available corn grits from weaning to approximately 120 days of age. Littermate controls were fed Purina Laboratory Chow. The subjects' learning ability was tested in a two-way active avoidance task and a black-white visual discrimination task. The grits-fed animals did not develop physically and remained as small as weanling rats throughout the study. The data from the learning tasks indicate that there were no differences in learning ability between the protein-malnourished animals and the normallittermates.

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Section: Discussionsupporting

confidence: 85%

Effects of early protein malnutrition on learning in the rat

Remley

Armstrong

Gilman

et al. 1980

Bull. Psychon. Soc.

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“…Some researchers have dated sensitive periods in terms of actual life-span events instead of age. For example, undernutrition must be endured for the period of suckling to have lasting effects on social behavior in rats (Byrne & Smart, 1980); exposure to nonmimetic eggs must fall during the period of egg laying for rejection in orioles (Rothstein, 1978); separation from the lamb immediately after parturition engenders rejection by maternal ewes (Collias, 1956); and dogs' learning of territorial boundaries coincides with the advent of sexual maturity (Tinbergen, 1951). A vulnerable period in human brain development has been postulated to coincide with the maturational spurt of axons and dendrites, glial multiplication, and myelination (Dobbing & Sands, 1973).…”

Section: A Sensitive Period Framework: I Structural Characteristicsmentioning

confidence: 99%

“…Some researchers, although few in number, specify duration in terms of developmental events. For example, undernutrition must be endured for the period of suckling to have lasting effects on social behavior in rats (Byrne & Smart, 1980), and exposure to nonmimetic eggs must fall around the onset of laying to provoke rejection in orioles (Rothstein, 1978).…”

Section: A Sensitive Period Framework: I Structural Characteristicsmentioning

confidence: 99%

Sensitive periods in development: Structural characteristics and causal interpretations.

Bornstein

1989

Psychological Bulletin

323

165

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The presence or absence of a particular experience at a particular time in the life cycle may exert an extraordinary and dramatic influence over structure or function well beyond that point in development. Such sensitive periods are thought to be widespread in animal and in human neurobiology and psychology. A comprehensive treatment of the sensitive period needs minimally to include information about its structural characteristics as well as an interpretation of its causes, including why the sensitive period arises in terms of the natural history of the species and how the sensitive period is regulated in terms of physical, physiological, and psychological processes. This article provides a framework for research and theory concerning specific sensitive periods and the sensitive period generally conceived. The framework delimits four sets of parameters, which encompass 14 structural characteristics that define sensitive periods, and two levels of causal interpretation that guide research and theory into sensitive periods however they may be manifested.

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Delimitation of a sensitive period for the effects of early life undernutrition on social behaviour of adult male rats

Cited by 2 publications

References 10 publications

Effects of early protein malnutrition on learning in the rat

Effects of early protein malnutrition on learning in the rat

Sensitive periods in development: Structural characteristics and causal interpretations.

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