Socius: Social Sciences Research Journal
Vol 3, No 11 (2026): June 2026

The Critical Period of Infancy from a Developmental Psychology Perspective: A Literature Review

Rahma Fithri (Magister Psikologi, Fakultas Psikologi, Universitas Islam Negeri Sultan Syarif Kasim Riau)
Yuliana Intan Lestari (Magister Psikologi, Fakultas Psikologi, Universitas Islam Negeri Sultan Syarif Kasim Riau)



Article Info

Publish Date
05 Jun 2026

Abstract

The infancy period (0-2 years) is a critical phase in human development characterized by rapid growth and development across multiple domains, including physical-motor, cognitive, language, social-emotional, moral, and religious aspects. This period is often referred to as part of the "golden age" because the child's brain develops very rapidly and the formation of personality foundations and basic abilities occurs fundamentally. This literature study aims to comprehensively analyze the various dimensions of child development during infancy from the perspective of developmental psychology, as well as to identify its implications for early childhood education and parenting. The method used is a qualitative approach through literature study by analyzing various relevant scientific sources. The results of the study indicate that development during infancy is holistic and interrelated across aspects, thus requiring appropriate, continuous stimulation based on an understanding of developmental psychology so that children's potential can develop optimally. The role of the family, especially parents, is a dominant factor in the success of children's growth and development in this phase.

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Journal Info

Abbrev

Socius

Publisher

Subject

Religion Arts Humanities Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media

Description

Socius: Jurnal Penelitian Ilmu-ilmu Sosial is a multi and interdisciplinary peer-reviewed academic research journal serving the broad social sciences community. The journal welcomes excellent contributions that advance our understanding on a broad range of topics including anthropology, sociology, ...