Incorrect items touched on the screen by WS and TD participants in performing the tasks.

<p>On the right, the chromatic scale indicates the sum of incorrectly touched items (brown and blue denote maximal and minimal values, respectively). S: starting point; F: final point.</p

Comparisons of chronological age (CA), mental age (MA) and Intelligence Quotient (IQ) between WS groups (WS1 and WS2) and TD groups (TD1 and TD2) that performed the two different experimental conditions.

<p>Comparisons of chronological age (CA), mental age (MA) and Intelligence Quotient (IQ) between WS groups (WS1 and WS2) and TD groups (TD1 and TD2) that performed the two different experimental conditions.</p

Errors exhibited by WS and TD participants in the two experimental conditions.

<p>Data are expressed as mean ± SEM. The asterisks indicate the significance level of post hoc comparisons between groups (*<i>P</i><0.05; ** <i>P</i><0.005; *** <i>P</i><0.001).</p

Schematic diagrams of the two experimental conditions.

<p>Condition 1: Learning by Trial and Error followed by Observational Learning: participants detected a sequence by trial and error (TE1), then they observed an actor detecting a sequence different from the one they had previously detected (observational training) and, finally, they reproduced the observed sequence (OBS2). Condition 2: Observational Learning followed by Learning by Trial and Error: participants were submitted to an observational training, then they reproduced the observed sequence (OBS1) and, finally, detected by trial and error a different sequence they had never observed (TE2). The incorrect positions touched by the actor during the observational training are evidenced in grey. S: starting point; F: final point.</p

Description of WS groups (WS1 and WS2) and TD groups (TD1 and TD2) performing the two different experimental conditions.

<p>CA: Chronological Age.</p><p>MA: Mental Age.</p><p>IQ: Intelligence Quotient.</p

Statistical comparison of visuo-spatial performances of WS and TD participants.

<p>Statistical comparison of visuo-spatial performances of WS and TD participants.</p

Performances exhibited by WS and TD participants in the Attentional Task.

<p>Data are expressed as mean ± SEM.</p