Quality of Early Family Relationship and the Timing and Tempo of Puberty: Effects Depend on Biological Sensitvity to Context  

Oleh:

Ellis, Bruce J. ; Shirtcliff, Elizabeth A. ; Boyce, W. Thomas ; Deardorff, Julianna ; Essex, Marilyn J.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Development and Psychopathology vol. 23 no. 1 (Feb. 2011), page 85-99.
Topik: biological sensitivity to context; reproductive development; puberty; pubertal tempo; pubertal timing

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: DD21.20 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Guided by evolutionary-developmental theories of biological sensitivity to context and reproductive development, the current research examined the interactive effects of early family environments and psychobiologic reactivity to stress on the subsequent timing and tempo of puberty. As predicted by the theory, among children displaying heightened biological sensitivity to context (i.e., higher stress reactivity), higher quality parent-child relationships forecast slower initial pubertal tempo and later pubertal timing, whereas lower quality parent-child relationships forecast the opposite pattern. No such effects emerged among less context-sensitive children. Whereas sympathetic nervous system reactivity moderated the effects of parent-child relationships on both breast/genital and pubic hair development, adrenocortical activation only moderated the effect on pubic hair development. The current results build on previous research documenting what family contexts predict variation in pubertal timing by demonstrating for whom those context matter. In addition, the authors advance a new methodological approach for assessing pubertal tempo using piecewise growth analysis.

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