Applicability of the P300 frequency pattern test to assess auditory processing

Abstract

The FPT and P300 are efficient instruments used to assess the intended skills.

Achados da avaliação comportamental e eletrofisiológica do processamento auditivo

“…Therefore, in relation to the maturation of the auditory canal, it is possible to observe better results from birth to, approximately, the age of 12. In relation to behavioral tests, there is a quantitative improvement in the results when age increases (10) . In this study the correlation between normal or altered behavioral test and mean age was not observed.…”

“…This skill plays an essential role in speech perception, when segmenting speech sounds, in language learning and comprehension, being a prerequisite for reading and writing acquisition (25) , and it is directly related to perception and phonemic discrimination. The auditory attention, assessed through P300, is necessary to the acquisition of acoustic and phonetic aspects of language patterns, which are important when learning how to read and write (10) . In another study in which the relation between the auditory skill of dichotic listening and P300 was made, it was possible to notice that individuals that presented an alteration in the P300 result, also presented some kind of alteration in the dichotic listening test (26) , what corroborates the findings of this study, since the P300 is related to attention and recent memory (10) .…”

“…These skills have a strong relation with auditory attention, which is assessed through this potential. The P300 indicates electrical responses produced by the thalamus, auditory cortex and cortical association areas, which reflect cortical electrophysiological activity involving attention, discrimination, memory, integration and decision making skills (10) . The temporal ordering skill may be simple, when the individual identifies nonverbal sounds in silent environments; and complex, when the individual identifies competitive verbal sounds, keeping a given order (10) .…”

“…The P300 indicates electrical responses produced by the thalamus, auditory cortex and cortical association areas, which reflect cortical electrophysiological activity involving attention, discrimination, memory, integration and decision making skills (10) . The temporal ordering skill may be simple, when the individual identifies nonverbal sounds in silent environments; and complex, when the individual identifies competitive verbal sounds, keeping a given order (10) . This skill plays an essential role in speech perception, when segmenting speech sounds, in language learning and comprehension, being a prerequisite for reading and writing acquisition (25) , and it is directly related to perception and phonemic discrimination.…”

“…Hence, it is recommended in the auditory processing assessment the use of verbal and nonverbal stimuli with the use of behavioral tests in order to assess the auditory function or the auditory skills and/or the use of electrophysiological tests, which verify the integrity of auditory canals (9,10 . The assessment of central hearing through electrophysiological tests is also very useful in the assessment of auditory processing, since it provides more data in differential diagnosis to professionals.…”