Hormonal and physical markers of puberty and their relationship to adolescent-typical novelty-directed behavior.

Hormonal and physical markers of puberty and their relationship to adolescent-typical novelty-directed behavior.
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DOI:
10.1002/dev.20610
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发表时间:
2012-07
影响因子:
2.2
通讯作者:
Spear, Linda P.
Spear, Linda P.
中科院分区:
心理学4区
文献类型:
--
作者:
Vetter-O'Hagen, Courtney S.;Spear, Linda P.

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青少年特有的行为在多大程度上与青春期变化相关,或者是由更普遍的、独立于青春期的发育改变驱动的,目前尚不清楚。该实验利用青春期的生理和激素标志物,描述了整个青春期的青春期时间,并检查了这些变量与新奇导向行为之间的关系。在 P28、P32、P36、P40、P44、P48 和 P75 测试男性和女性对新鲜事物的反应,并检查龟头-包皮皮褶分离和精子存在(男性)或阴道开口(女性),然后采集血液进行激素评估。尽管女性青春期成熟较早,通常在女性 P36 和男性 P44 时完成成熟,但两性的新奇导向行为在 P32 和 P36 时达到顶峰,并且与青春期指标无关。这些数据支持这样的观点,即青春期期间这种行为的个体发育峰值并不明显依赖于青春期。
The extent to which characteristic adolescent behaviors are associated with pubertal changes or driven by more general, puberty-independent developmental alterations is largely unknown. Using physiological and hormonal markers of puberty, this experiment characterized pubertal timing across adolescence and examined the relationships among these variables and novelty-directed behaviors. Males and females were tested for response to novelty at P28, P32, P36, P40, P44, P48 and P75, and examined for balano-preputial skinfold separation and sperm presence (males) or vaginal opening (females), followed by blood collection for hormonal assessments. Despite earlier pubertal maturation in females, with maturation generally completed by P36 in females and P44 in males, novelty-directed behavior peaked at P32 and P36 in both sexes, and was unrelated to pubertal measures. These data support the suggestion that the ontogenetic peak in this behavior during adolescence is not notably puberty-dependent.
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