Resumen

TABULLO, Angel J.  y  YORIO, Alberto. Electrophysiological correlates of equivalence relations and grammar structure learning: a brain potentials study. Anu. investig. [online]. 2013, vol.20, n.2, pp.319-326. ISSN 1851-1686.

The aim of the study was to compare performance and brain potentials recorded during processing of equivalence relations and artificial grammars. The experiment was condcuted on a sample of healthy right-handed adults whitin 20-30 years old. Subjects were trained in two tasks: equivalence relations learning and artificial grammar learning, percentage of correct responses and brain potentials obtained during the test stage were compared. No correlations were found in task performance, but a similar negativity was observed within the range of 400-600 ms. This negativities were interpreted as intances of the N400 component (associated with lexical and semantic processing). Additionally, a P600 component (associated with syntax processing) was observed in the artificial grammar. Results suggest a partial overlap between neural mechanisms of artificial grammar and equivalence relations.

Palabras clave : Equivalence relations; Artificial grammar; Learning; Brain Potentials.

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