The results of the correlation analysis between the speech-in-noise intelligibility scores in the Monaural configuration and WM asymmetry in dyslexic participants.

<p>A: behavioral results of the speech-in-noise comprehension test. The intelligibility of the individual words presented in a 4-talkers babble noise in three listening conditions (Dichotic, Monaural, Spatialized). B: Correlation between the speech-in-noise comprehension scores and WM asymmetry at [-62, -31, 9] for dyslexic participants. C: Visualization of the significant cluster, reflecting the correlation between WM volume and speech in noise scores centered at [-62, -31, 9] in dyslexic participants only.</p

The results from the group difference analysis for gray matter asymmetry.

<p>A: significant group difference, suggesting that dyslexics show reduced GM asymmetry at [62, -22, -3]. B: GM asymmetry values (raw signal intensity values expressed in arbitrary units) at [62 -22 -3] in normal readers and dyslexics, illustrating the interindividual variability of GM distribution at this location. C: GM volumes (raw signal intensity values expressed in arbitrary units) at [62 -22 -3] and [-62-22 -3] in normal readers (black) and dyslexics (gray), showing a significant GM asymmetry at that location only for normal readers.</p

Gray matter asymmetry and whole-brain analysis.

<p>The images show cerebral regions with significant (cluster-level FWE-corrected, <i>P</i><0.05) GM distribution asymmetry in normal-readers (upper row) and dyslexic participants (lower row). Significant clusters are displayed on the mean GM image of the whole sample of participants.</p

Mean proportion of total looking time to the face that matched the heard voice in each condition (IDS, ADS) and for each age group (6-, 9-, 12-month-olds).

<p><i>Note</i>: *<i>p</i> < .05; Error bars represent <i>SD</i>s.</p

Schematic representation of the procedure.

<p>Infants saw two side-by-side silent video-clips presenting a male and a female face reciting a nursery rhyme. A soundtrack with a female or a male voice telling a story in IDS or ADS was played at the same time. The video-clips were repeated twice throughout the four trials, with left-right reversal for the positioning of the faces. (The individuals in this figure have given written informed consent (as outlined in PLOS consent form) to publish their pictures.)</p