Cognitive Auditory Interaction P300

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On the other hand, the efficacy verification of such programs as well as the monitoring of the therapeutic evolution has been restricted to behavioral measures, with a limited quantity of studies that use objective methods aimed for this purpose (Alvarenga, Araújo, Ferraz & Crenitte, 2013).

The Cognitive Auditory Evoked Potential (CAEP) - P300 has been used to measure and monitor neurophysiological modifications of the central auditory nervous system (Alonso & Schochat, 2009; Anderson, Baldridge & Stanford, 2011; Sassi, Matas, de Mendonça & de Andrade, 2011).
Given that P300 is an endogenous potential elicited by auditory discrimination when the subject consciously reacts to rare stimuli randomly presented between frequent stimuli (Musiek
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The N2 component is associated with perception, discrimination, recognition, and classification of an auditory stimulus and has multiple generators, among which is the supratemporal cortex (Musiek & Lee 2001). In this manner, P300 and N2 can be investigated in students with developmental dyslexia, once they present alterations in their phonological aptitudes (Alvarenga, Araújo, Ferraz & Crenitte, …show more content…
In relation to the use of CAEP as a tool to monitor the therapeutic evolution in dyslexic, Jucla, Nenert, Chaix e Demonet (2010) investigated the N170 and P300 components before and after intensives two-month training programs, one based on phonemic awareness and the other on visual and orthographic processing. The authors’ finds showed that training might modulate cortical activity in dyslexic children in a visual word recognition task and these results reflect the strong link between the reading skill improvements after

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