The effect of spatio-temporal distance between visual stimuli on information processing in children with Specific Language Impairment.
The purpose of this study is to evaluate whether children with Specific Language Impairment (SLI) have a deficit in processing a sequence of two visual stimuli (S1 and S2) presented at different inter-stimulus intervals and in different spatial locations. In particular, the core of this study is to investigate whether S1 identification is disrupted due to a retroactive interference of S2. To this aim, two experiments were planned in which children with SLI and children with typical development (TD), matched by age and non-verbal IQ, were compared (Experiment 1: SLI n=19; TD n=19; Experiment 2: SLI n=16; TD n=16). Results show group differences in the ability to identify a single stimulus surrounded by flankers (Baseline level). Moreover, children with SLI show a stronger negative interference of S2, both for temporal and spatial modulation. These results are discussed in the light of an attentional processing limitation in children with SLI.
Dipartimento di Psicologia dello Sviluppo e della Socializzazione, Università di Padova, Italy. Electronic address: marco.dispaldro@unipd.it.
Marco
M
Dispaldro
Dipartimento di Psicologia Generale, Università di Padova, Italy.
Nicola
N
Corradi
D001288:Attention / Q000502:physiology*; D016022:Case-Control Studies; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007805:Language Development Disorders / Q000503:physiopathology* / Q000523:psychology; D008297:Male; D010775:Photic Stimulation / Q000379:methods; D013997:Time Factors; D014796:Visual Perception / Q000502:physiology*
Information processing; Selective attention; Specific Language Impairment; Visual ability