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Inferential abilities based on pictorial stimuli in patients with right hemisphere damage: Influence of schooling

Habilidades inferenciais a partir de estímulos pictóricos em pacientes com lesão de Hemisfério Direito: Influência da Escolaridade


Inferences are mental representations, formed through the interaction between explicit linguistic information and an individual's world knowledge. It is well known that individuals with brain damage in the right hemisphere (RH) often fail on this task and that schooling may be a variable affecting this.


Objective: To compare the effect of schooling on an inference comprehension task based on pictorial stimuli in patients with RH lesion.


The inferential abilities of 75 controls and 50 patients with RH lesion were assessed through the pictorial stimuli from the instrument "300 exercises of comprehension of logical and pragmatic inferences and causal chains". Both groups were stratified into two subgroups according to schooling level: 4 to 8 years and 9 or more years.


Highly educated subjects performed better than low educated individuals, both on intergroup and intragroup comparisons (p<0.0001) for logical and pragmatic inference ability.

visual inferences; schooling; right hemisphere damage

Inferências são representações mentais, formadas através da interação entre a informação linguística explícita e o conhecimento de mundo de um indivíduo. Sabe-se que indivíduos com lesão cerebral em hemisfério direito (HD) frequentemente falham nesse tipo de tarefa e que, a escolaridade pode ser uma variável que afeta tal competência.


Comparar o efeito da escolaridade em um teste de compreensão de inferência a partir de estímulos visuais, em pacientes com lesão de HD.


As habilidades inferenciais de 75 controles e 50 pacientes com lesão de HD foram avaliadas a partir de estímulos pictóricos do intrumento "300 exercícios de compreensão de inferências lógicas e pragmáticas e cadeias causais". Ambos os grupos foram divididos em dois subgrupos de acordo com o nível de escolaridade: 4 a 8 anos e 9 anos ou mais.


O grupo mais escolarizado apresentou melhor desempenho do que os menos escolarizados, seja nas comparações intragrupos e intergrupos (p<0.0001), tanto na compreensão de inferências lógicas quanto pragmáticas.

inferências visuais; escolaridade; lesão de hemisfério direito

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Publication Dates

  • Publication in this collection
    Sept 2014


  • Received
    26 Apr 2014
  • Accepted
    05 July 2014
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