Journal Alert - NEUROPSYCHOLOGIA
This study investigated the electrophysiological responses to
> single-letter reading in children (reading-related potentials) and
> explored the morphological differences between covert and overt reading
> conditions.
> Sixty-five healthy children (6-13 years) participated in this study.
> Reading-related potentials were recorded during visual stimulation with
> single Italian alphabetic letters. Stimuli were displayed for 5 ms
> either automatically at a randomly uttered time lag or upon voluntary
> self-paced button press by children. In the covert conditions, children
> had to passively look at single letters, while in the overt conditions
> children were required to read aloud the letters. Electromyographic
> activity of the forearm and lips was additionally recorded during all
> tasks.
> Superimposition of reading-related potentials with the electromyographic
> activity of forearm and lips during self-paced reading aloud allowed to
> segregate the reading-related components into four periods: preparatory,
> pre-lexical, lexical and post-lexical. Reading-related potentials of the
> preparatory period can be related to preparation/intention to read,
> those of the pre-lexical period to visual-perceptual processes, those of
> the lexical period to the external/internal reafferent activity and
> those of the post-lexical period to the feedback processes following
> task completion.
> Analysis of variance show...
Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner) - Category: Neurologists Source Type: blogs
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