Electrophysiological auditory responses and language development in infants with periventricular leukomalacia  

Oleh:

Avecilla-Ramírez, G.N. ; Ruiz-Correa, S. ; Marroquin, J.L. ; Harmony, T. ; Alba, A. ; Mendoza-Montoya, O.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 119 no. 3 (2011), page 175-183.
Topik: Event-induced EEG responses; Periventricular leukomalacia; Language development; CDI McArthur; Infants
Fulltext: 119_03_Avecilla-Ram-rez.pdf (1.37MB)

Isi artikel

This study presents evidence suggesting that electrophysiological responses to language-related auditory stimuli recorded at 46 weeks postconceptional age (PCA) are associated with language development, particularly in infants with periventricular leukomalacia (PVL). In order to investigate this hypothesis, electrophysiological responses to a set of auditory stimuli consisting of series of syllables and tones were recorded from a population of infants with PVL at 46 weeks PCA. A communicative development inventory (i.e., parent report) was applied to this population during a follow-up study performed at 14 months of age. The results of this later test were analyzed with a statistical clustering procedure, which resulted in two well-defined groups identified as the high-score (HS) and low-score (LS) groups. The eventinduced power of the EEG data recorded at 46 weeks PCA was analyzed using a dimensionality reduction approach, resulting in a new set of descriptive variables. The LS and HS groups formed well-separated clusters in the space spanned by these descriptive variables, which can therefore be used to predict whether a new subject will belong to either of these groups. A predictive classification rate of 80% was obtained by using a linear classifier that was trained with a leave-one-out cross-validation technique.

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