Example of one trial.

<p>Each trial consisted of a fixation point that appeared for 1000 ms, a first number that lasted 300 ms. followed by a blank screen for 350 ms. and finally a second number that appeared for 300 ms. After 700 ms a delayed response was requested.</p

Phase Synchrony and its distribution over the scalp for each group and experimental condition.

<p>a) Frequency range and time are respectively indicated in the y and x-axis of the maps. Color bars at the right side of the maps show the mean phase-locking value (in standard deviation units) between all electrodes pairs. Vertical lines indicate the TN second digit onset. The black segment rectangles delimit time windows showing significant differences between conditions for the LL_B^math and LL_S^math groups (<i>p</i> < 0.05). b) Spatial distribution of phase synchrony for each significant time-frequency windows. The points represent the location of the electrodes over the scalp. Frequency bands are indicated at the left of each row. Time windows are indicated at the bottom of each head. Black lines connect pairs of electrodes displaying significant synchronization (<i>p</i> < 0.00006).</p

ERPs elicited by the target in blind participants.

<p>a) target on the left; b) target on the right. Black line represents congruent trials and red line incongruent trials. c) Difference between congruent and incongruent conditions in the two latency windows. A continuation of the congruency effects on the N100 is shown in the latency window of the P300: same scalp distribution as for the effect on the negativity can be seen.</p

a. Sequence of the stimulus in the two experiments.

<p>Detection responses were requested right after the target in the behavioural experiment and after the second sound in the ERP experiment. b. Behavioral results. Mean detection times plotted with standard error of the mean. A main effect of congruency can be observed, without interaction with group or with side of presentation of the target.</p

ERPs elicited by the target in sighted participants.

<p>a) target on the left; b) target on the right. Black line represents congruent trials and red line incongruent trials. c) Difference between congruent and incongruent conditions in the two latency windows.</p