Main Article Content
The individual's learning process begins with the birth and continues with discoveries in the living spaces. The curiosity-driven learning process is the basis of cognitive development and nowadays much research are being done to understand this development ?eld. Determining the focal point of research on cognitive development in preschool in Turkey has shed light on the work to be done later. This study consists of theses and articles written in development and education related to the ?eld of cognitive development in children aged 3-6. The study consists of 53 studies chosen randomly from the scienti?c research published between the years 2008-2018 within the ?eld of cognitive development in 3-6 aged children. The keywords of "cognitive development, mental development, cognition" were applied while searching through both the Higher Education Council Theses Center and The Turkish Academic Network and Information Center (ULAKBIM). 24 theses that have been in Higher Education Council Theses Center and 29 articles in The Turkish Academic Network and Information Center (ULAKBIM) were reviewed using content analysis through a form that includes subject areas, data collection tools used in the research, data analysis methods, references, and sample characteristics. In this study, it was found that academic studies of early childhood were focused on 60-72 months.It has been observed that there has been an increase in the number of studies conducted on children aged 0-2 years. However, conducting new academic studies on this period, which is an important period in brain development, will create a strong basis for understanding and developing the later stages of early childhood.