まとめ
赤ちゃんの双子に関するこの研究では,同卵双子は,最初の1年間,同卵双子と比較して,精神的,運動的,および人格の発達における差異が少ないことが判明し,早期発達に対する遺伝的影響を示唆しています.
科学分野:
- 発達心理学の心理学について
- 行動遺伝学 行動遺伝学
- 双子研究 双子研究
背景:
- 幼少期の発達における遺伝学と環境の相互作用を理解することは極めて重要です.
- 双子の研究は,遺伝的および環境的影響を解き放つためのユニークなモデルを提供します.
研究 の 目的:
- 幼児における精神的,運動的能力および人格の発達軌道を調査する.
- 一卵性双生児と一卵性双生児の発達上の違いを,その最初の年に比べるため.
主な方法:
- 最初の1年間に20組の同性双子の赤ちゃんの長距離研究.
- メンタル・モーター能力と人格の毎月の評価.
- 血群分析により,ジゴス性 (同型対同型) を判定する.
主要な成果:
- 双子の内部の違いは,一卵性双子の対と比較して,同卵性双子の対において,著しく大きかった.
- このパターンは,テストされたすべての精神的,運動的能力や人格評価において当てはまります.
- 研究期間は,他の要因を隔離して,重要な相互模倣に先立ちました.
結論:
- 研究結果は,早期の精神的,運動的,そして人格的発達に重大な遺伝的寄与があることを示唆している.
- 一卵性双子のより大きな類似性は,共通の遺伝子が発達の一貫性における役割を示している.
- 初期の発達上の差異は,社会的模倣が顕著になる前に遺伝的要因の影響を受けます.
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