New methods focused on visual attention e.g. habituation-dishabituation and violation-of-expectation methods. Leslie and Keeble (1987) and Spekle et al. (1992) experiments, not exclusively, lead to a discovery of complex intuitions in young infants and raised the discussions about the ways of attainment of physical knowledge, which were further studied by Baillargeon (1994, 1995) and Baillargeon et al. (1995). According to constructed model, infants had innate learning mechanism responsible for acquisition of physical knowledge. It was believed that mentioned learning mechanism is liable for at least two closely bounded processes. First is a creation of object categories e.g. animate, inanimate, self-moving and inert objects, and event categories e.g. collision, arrested-motion, occlusion and support events. Second is identification of variables and primary concepts for every event category. Further, dual research carried out presented several steps and explained changes in infants’ perception of the world. (Adair, Bélanger, Dion & Sabourin, …show more content…
According to her study, these systems help to construct abstract understanding of the fundamental features the world. She found that new-born’s core systems e.g. system for representing objects or approximate numerosities, resemble with some animal species, therefore, suggested that they have evolutionary history. Hence, construction of some complex cognitive abilities e.g. calculation or reading, as well as species and culture specific skills is a result of cooperation between core systems under biogenetic law. Spelke argued that core systems are encapsulated, domain and task specific. Domain specific in terms of scope of representation of the events and things perceived by infant. Task specific in terms of ability to solve certain set of problems. Encapsulated, as operates largely independently from other systems. Moreover, each core knowledge system represented certain class of entities for exact set of purposes. Speke’s further researches suggested that core knowledge systems are present in children and adults, what is more, contribute towards development of later cognitive functioning by serving as building blocks for new cognitive skills. (Spelke, 2000). In the more recent publication, four main core knowledge systems e.g. the domain of space, number, living things and transcending core knowledge, with a possibility of existence of the