El procesamiento de los números arábigos : una aproximación desde la neuropsicología cognitiva

Resum

In this work has been realized an examination of the numerical processing and the calculation to 19 patients with cerebral injury. For it there has been used a battery of evaluation that consists of six blocks: numerical comprehension, numerical recodification, signs arithmetical, calculation, lexical numerical knowledge and numerical sequence.The patients split in accordance with two criteria. First, the place of the injury: left hemisphere, right hemisphere and generalized damage. Second, according to the state of conservation of the production of the lenguage: normal, lightly affected and seriously affected. The results show that the system of numerical processing and calculation is formed by four independent components: quantitative numerical knowledge, qualitative or lexical numerical knowledge, calculation and numerical recodification. As conclusion proposes to itself a model integrated by these four components, which are located in cerebral different areas and depend of different skills cognitive.