19 research outputs found
Tentative Technique for Determining the Influence of Soil on the Growth of Forest Plantations
DNA repair deficiency in systemic lupus erythematosus: cause or consequence of disease and implications for management
Concentrações de alguns macro e micronutrientes em essências florestais do parque da Escola Superior de Agricultura «Luiz de Queiroz»
Teor de macro e micronutrientes em folhas de diferentes idades de algumas essências florestais nativas
Influence of Edaphic Factors on Sugar Maple Nutrition and Health on the Allegheny Plateau
Recomendaciones para el soporte nutricional y metabólico especializado del paciente crítico. Actualización. Consenso SEMICYUC-SENPE: Paciente cardíaco
Working Memory: A Cognitive Limit to Non-Human Primate Recursive Thinking Prior to Hominid Evolution
In this paper I explore the possibility that recursion is not part of the cognitive repertoire of non-human primates such as chimpanzees due to limited working memory capacity. Multiple lines of data, from nut cracking to the velocity and duration of cognitive development, imply that chimpanzees have a short-term memory size that limits working memory to dealing with two, or at most three, concepts at a time. If so, as a species they lack the cognitive capacity for recursive thinking to be integrated into systems of social organization and communication. If this limited working memory capacity is projected back to a common ancestor for Pan and Homo , it follows that early hominid ancestors would have had limited working memory capacity. Hence we should find evidence for expansion of working memory capacity during hominid evolution reflected in changes in the products of conceptually framed activities such as stone tool production. Data on the artifacts made by our hominid ancestors support this expansion hypothesis for hominid working memory, thereby leading to qualitative differences between Pan and Homo