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  • Title: Effects of output order on hemispheric asymmetry for processing letter trigrams.
    Author: Hellige JB, Scott GB.
    Journal: Brain Lang; 1997 Oct 01; 59(3):523-30. PubMed ID: 9299075.
    Abstract:
    Observers identified consonant-vowel-consonant trigrams with the letters arranged vertically by pronouncing the stimulus (treating the bottom letter as the first letter) and spelling it from bottom to top. On each trial, the trigram was presented to the left visual field/right hemisphere (LVF/RH), to the right visual field/left hemisphere (RVF/LH), or to both visual fields simultaneously (BILATERAL trials). Quantitative and qualitative visual field differences were identical to those found when observers used a more natural response output order, treating the top letter of the trigram as the first letter. The results suggest that, regardless of output order, attention is distributed across the three letters in a relatively slow, top-to-bottom fashion on LVF/RH and BILATERAL trials, whereas attention is distributed more rapidly and evenly across the three letters on RVF/LH trials.
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